OHAUS PX5202E PX Series Balances Instruction Manual
- June 12, 2024
- Ohaus
Table of Contents
OHAUS PX5202E PX Series Balances
Pioneer PX Series Balances Instruction Manual
Product Information
The Pioneer PX balance is a precision weighing instrument that is available in capacities ranging from 82 grams to 8200 grams. The balance comes with a 2-line backlit display, 6 weighing applications, and many other features that make it easy to use and highly accurate.
Features
- 2-line backlit display
- 6 weighing applications
- Precision weighing
Signal Warnings and Symbols:
Safety notes are marked with signal words and warning symbols. These show
safety issues and warnings. Ignoring the safety notes may lead to personal
injury, damage to the instrument, malfunctions, and false results.
- WARNING: For a hazardous situation with medium risk, possibly resulting in injuries or death if not avoided.
- CAUTION: For a hazardous situation with low risk, resulting in damage to the device or the property or in loss of data, or injuries if not avoided.
- Attention Note: For important information about the product.
- Warning Symbols:
– Indicates a hazardous situation that could result in personal injury or death.
– Indicates a hazardous situation that could result in damage to the instrument or loss of data.
Product Usage Instructions
Installation:
- Place the balance on a level surface and ensure that it is stable.
- Connect the power cord to the balance and plug it into a power outlet.
- Press the ON/OFF button to turn on the balance.
Operation:
To operate the balance:
- Place the object to be weighed on the weighing pan.
- Wait for the display to stabilize.
- Record the weight displayed on the screen.
- Remove the object from the weighing pan.
- Press the ON/OFF button to turn off the balance.
Applications:
The Pioneer PX balance can be used in a variety of applications, including:
- Laboratory research
- Quality control
- Pharmaceuticals
- Manufacturing
Menu Settings:
The Pioneer PX balance comes with various menu settings that can be
adjusted to suit your needs. These include:
- Weighing units
- Tare function
- Calibration
Maintenance:
To ensure that your Pioneer PX balance continues to provide accurate
results, it is important to perform regular maintenance. This includes:
- Cleaning the weighing pan and surrounding area
- Calibrating the balance regularly
- Replacing batteries as needed
**Technical Data:
**
The technical data for the Pioneer PX balance includes:
- Capacity
- Readability
- Repeatability
- Linearity
Software Updates:
Periodic software updates are available for the Pioneer PX
balance. These updates can be downloaded from the manufacturer’s
website and installed on the balance using a USB drive.
Compliance:
The Pioneer PX balance is compliant with various industry standards,
including:
- ISO 9001:2008
- ISO 14001:2004
- OIML R76-1:2006
Pioneer PX Series Balances Instruction Manual
Pioneer Balanzas Serie PX Manual de Instrucciones
Pionnier Balance de Séries PX Manuel d’instruction
Pioneer PX-Serie Waagen Bedienungsanleitung
Bilance Pioneer Serie PX Manuale di Istruzioni
PX Series Balance
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INTRODUCTION
Description
The PX balance is a precision weighing instrument that will provide you with
years of service if properly cared for. PX balances are available in
capacities from 82 grams to 8200 grams.
1.2 Features
Operation Controls: 2-line backlit display, with 6 weighing applications and
many other features.
1.3 Definition of Signal Warnings and Symbols
Safety notes are marked with signal words and warning symbols. These show
safety issues and warnings. Ignoring the safety notes may lead to personal
injury, damage to the instrument, malfunctions and false results.
WARNING
CAUTION
Attention Note
For a hazardous situation with medium risk, possibly resulting in injuries or death if not avoided. For a hazardous situation with low risk, resulting in damage to the device or the property or in loss of data, or injuries if not avoided. For important information about the product For useful information about the product
Warning Symbols
General Hazard
Electrical Shock Hazard
Alternating Current
Direct Current
1.4 Safety Precautions
CAUTION: Read all safety warnings before installing, making connections, or
servicing this equipment.
Failure to comply with these warnings could result in personal injury and/or
property damage. Retain all
instructions for future reference.
z Verify that the AC adapter’s input voltage range and plug type are
compatible with the local AC main power
supply.
z Make sure that the power cord does not pose a potential obstacle or tripping
hazard. z Do not position the balance such that it is difficult to reach the
power connection. z The balance is for indoor use only. Do not operate the
equipment in hazardous or unstable environments. z Operate the equipment only
under ambient conditions specified in these instructions. z Do not drop loads
on the pan. z Use the balance only in dry locations. z Disconnect the
equipment from the power supply when cleaning. z Use only approved accessories
and peripherals. z Service should only be performed by authorized personnel.
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PX Series Balance
2. INSTALLATION
2.1 Unpacking
Carefully remove your PX balance and each of its components from the package.
The included components vary depending on the balance model (see the list
below). Save the packaging to ensure safe storage and transport. Please read
the manual completely before installing and using the PX balance to avoid
incorrect operation.
Components included: x Balance x Power adapter + Attaching plug x Stainless
steel pan x Pan support (for 0.1 g / 0.01 g model only) x Warrenty card
2.2 Select the Location
Avoid heat sources, rapid temperature changes, air current or excessive
vibrations. Allow sufficient space.
2.3 Leveling
Be sure the balance is level before it is used or after its location is
changed. The PX balance has a level bubble in a small round window beside the
display. To level the balance, adjust the 4 Leveling Feet until the bubble is
centered in the circle. Please refer to Figure 2-1 for leveling.
Figure 2-1. Leveling
PX Series Balance
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2.4 Connecting Power and Acclimatising the Balance
Connect the DC output connector to the power receptacle on the rear of the
balance. Then connect the AC adapter plug to a suitable electrical outlet.
Acclimatising It is suggested that the balance should not be used until it has
been connected to power and acclimatised to the environment for a certain
period of time. In the case of a balance with the precision above 0.1 mg, the
acclimatisation time should be 1.5 hours; in the case of balance with the
precision of 0.01 mg, the acclimatisation time should be more than 4 hours.
2.5 Connecting the Interface
The PX balance has two data interfaces, RS232 and USB. Use the RS-232 port to
connect either to a computer or a printer with a standard (straight-through)
serial cable. Use the USB port to connect to a computer with a USB 2.0 Type A
to Type B cable.
Interface connections on the rear of the balance
USB
RS232
USBUsed to connect to PC only RS232Used to connect to PC or Printer Note: For Connecting, Configuring and Testing the Printer / Computer Interface, see the Printing section.
2.6 Initial Calibration
When the PX balance is first installed, or when it is moved to another
location, it must be calibrated to ensure accurate weighing results. PX
balances are classified into two categories, InCal models and ExCal models.
InCal models have a built-in calibration mechanism which can calibrate the
balance automatically and does not require the use of external calibration
masses. If preferred, InCal models can also be manually calibrated with
external masses. ExCal models are calibrated with external masses. Make sure
to have the appropriate calibration masses available before beginning
calibration.
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3.OPERATION
3.1 Overview of Display, Home Screen
The PX balance has a 2-line backlit display.
CONTROLS
PX Series Balance
CONTROL FUNCTIONS
Button
Primary Function
(Short Press)
On / Zero
x If the Indicator is Off, turns on the Indicator.
x If Indicator is On, sets zero.
Off
Secondary
Function x Zeroing current
(Press and
value.
Hold)
Menu Function
(Short Press)
Yes
x Accepts the current (blinking) setting on the display.
Function
x Sends the current x Operation is
displayed value to
dependent on the
the serial interface.
application mode.
Unit
Mode
x Changes weighing x Changes
units.
application mode.
No
Back
x Rejects the current x Reverts back to
(blinking) setting
previous menu
on the display.
item.
x Increments a value x Decrements a
being entered.
value being
entered.
Tare
x Performs tare operation.
Menu-Cal
x Enters the main menu. Calibration is the first submenu.
x Views the preset Tare value. Exit
x Immediately exits the submenu.
x Aborts a calibration in progress.
PX Series Balance MAIN APPLICATION SCREEN
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Net (NET) Stability (*) Negative (-) Centre of Zero (>0<) Pre-tare (PT)
Instructional Messages
Result Field: Information varies by application
Unit
3.2 Principal Functions and Main Menu
Weighing: Taring:
Zero: Dot-matrix Display:
Press Zero to set the display to zero. Place an object on the pan. The display
indicates the gross weight.
With no load on the pan, press Zero to set the display to zero. Place an empty
container on the pan and press Tare. Add material to the container and its net
weight is displayed. After the container and the objects are removed, the load
will be displayed as a negative number. Press Tare to clear.
Press Zero to zero the balance.
The relevant data in the specific application mode are shown in the dot-matrix
display area.
3.3 Overview of Parts and Features Draft Shield Models
Pan Level Indicator
Adjustable Foot
Adjustable Foot
USB Device Security Switch RS232 Power Input
3.4 Overview of Parts and Features Non-Draft Shield Models
Pan
Adjustable Foot
Adjustable Foot
USB Security Switch RS232 Power Input Device
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PX Series Balance
4. APPLICATIONS
The PX balance can be operated in 6 application modes by long pressing the
Function / Mode button.
4.1 Weighing
Note: Before using any application, be sure the balance has been leveled and
calibrated.
Use this application to determine the weight of objects in the selected unit
of measure.
Weighing 1. Press Tare or Zero if necessary to begin. 2. Press and hold the
Function / Mode button to select Weighing (this application is the default).
3. Place objects on the pan to display the weight. Once the reading is stable,
the * will appear. 4. The resulting value is displayed in the active unit of
measure.
Item Settings To view or adjust the current settings.
· Capacity Bar: When set to On, the capacity bar is displayed in the reference
field. The capacity will not display when the balance is set to zero.
· Weighing Units: Change the displayed unit. See Section 5.4 for more
information. · Filter Level: Change Filtering level. See Section 5.3.2 for
more information. · GLP Data: See Section 5.7 for more information. · Print
Settings: Change printing settings. See Section 7 for more information.
Batch Weighing To enable batch weighing:
1. Press and hold the Menu-Cal button until Calibration appears.
2. Short press the No button several times until Print appears.
3. Press the Yes button. 4. Short press the No button several times until
Batch
Printing appears. 5. Press the Yes button. 6. Short press the No button to
select On. 7. Press the Yes button.
PX Series Balance
To start batch weighing: 1. Re-enter the Weighing mode. Place the first sample
on the pan and press the Function / Mode button to store the first weight. 2.
Then, the message “Place sample 2” will display. 3. Remove the first sample,
add the second sample to the pan, and press the Function / Mode button to
store the second weight. 4. Continue adding components, and press the Function
/ Mode button to store the weights.
To end batch weighing and print the result: Press the Print button to end
batch weighing and print the result. Note: a total of 10 batch of samples can
be weighed. When 10 is reached, the message “End” will display if the Function
/ Mode button is pressed again. If continue to press the button, the message
“Out of range” will display.
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4.2 Parts Counting
Note: Before using any application, be sure the balance has been leveled and
calibrated. The minimum piece weight should be no less than 0.1d. In the LFT
mode, the minimum piece weight is 3e, the minimum Sample Size is 10.
Use this application to count samples of uniform weight.
Parts Counting 1. Press Tare or Zero if necessary to begin. 2. Press and hold
the Function / Mode button until Parts Counting appears.
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3. After confirmation by pressing Yes, the message “Clear APW?” will appear
on the screen.
4. If the APW of the last Parts Counting operation needs to be kept, press No
when the message “Clear APW?” displays.
5. Press Yes, and the message “Sample size 10” will display with the numeral
“10” (default) flashing.
6. Confirm the sample size by pressing Yes, and place 10 samples on the pan
to display the weight. Press No or Back to increase or decrease the value as
desired.
7. Press the Function / Mode button so that the weight of the 10 samples is
used to establish the average piece weight (APW). The display will show 10
pieces.
8. To view the piece weight or the total weight, press the Function / Mode
button.
9. Place additional objects on the pan, and the corresponding number of
pieces will display.
Item Settings Sample: The sample size ranges from 1 to 1000. The default value
is 10. Note: To ensure accurate counting, the minimum piece weight should be
no less than 0.1d.
PX Series Balance
PX Series Balance
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APW Optimization: Improving counting accuracy by re-calculating the piece
weight automatically as parts are added.
APW Optimization occurs only when the number of pieces added to the pan is
between one and three times the number already on the pan.
Print Settings: Changing printing setup. See Section 7 for more information.
4.3 Percent Weighing
Note: Before using any application, be sure the balance has been leveled and
calibrated. Use Percent Weighing to display the weight of a test object as a
percentage of a pre-established reference sample. The default (or last)
reference weight is displayed.
Percent Weighing 1. Press and hold the Function / Mode button until Percent
Weighing appears.
2. After confirmation by pressing Yes, the message “Clear reference?” will
appear on the screen.
3. Press Yes, and then the message “Place sample” will display.
4. Place the reference sample on the pan to display the weight. When the
reading is stable, the * will appear.
5. Press the Function / Mode button so that the weight of the reference
sample is stored in memory. The display will show 100%.
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6. Remove the reference sample and place the test object on the pan. The
ratio of the test object to the reference sample weight is displayed as a
percentage.
7. To view the reference sample weight or the test object weight, press the
Function / Mode button.
PX Series Balance
Item Settings Note: If the previously established reference sample weight
needs to be kept, press No when the message “Clear reference?” displays.
Printing Setup: Changing printing setup. See Section 7 for more information.
4.4 Dynamic Weighing
Note: Before using any application, be sure the balance has been leveled and
calibrated. Clear the pan before beginning a new Dynamic Weighing cycle. Use
this application to weigh an unstable load, such as a moving animal.
Dynamic Weighing 1. Press and hold the Function / Mode button until Dynamic
Weighing appears. 2. After confirmation by pressing Yes, the message “Change
parameter?” will appear on the screen.
3. Press Yes, and then the message “Average time 10 s” will display with the numeral “10” flashing. Press No or Back to increase or decrease the value as desired.
PX Series Balance
4. Confirm the weighing time by pressing Yes, and the message “Ready” will
display at the lower left of the screen.
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5. Place the dynamic object on the pan. The balance begins a countdown
(averaging process). During the countdown, the screen shows the time
remaining.
6. When the countdown ends, the result line is displayed and held.
7. After the dynamic object is removed, the weight will be automatically set
to zero, and the balance will return to the status of “Ready”.
Item Settings 1.Averaging Time: Set the averaging time to a value between 1
and 15 seconds. Default is 10 seconds. 2.Printing Setup: Changing printing
setup. See Section 7 for more information.
4.5 Density Determination
Note: Before using any application, be sure the balance has been leveled and
calibrated. Use this application to determine an object’s density. A Density
Determination Kit, Part Number 80253384, is designed to be used with PX series
balances. Illustrations in this procedure refer to the density kit, however,
you may use whatever lab apparatus that will suit the requirements for density
measurements. A built in reference density table for water at temperatures
between 10ºC and 30.9ºC is included in the balance software. Review this
entire section before attempting density measurements.
Operation Method Press and hold the Function / Mode button until the Density
appears on the screen. After confirmation by pressing Yes, the message “Change
parameter?” will display on the screen. The settings can be kept or changed as
desired. Item Settings:
x Sample Type: Solid, Liquid x Auxiliary Liquid: Water, Alcohol, Other x
Porous Material: Off, On x Water Temperature: 20 (by default) x Alcohol
Temperature: 20 (by default) x Volume (of Calibrated Sinker): 10 ml (by
default) x Weight (of Porous Material): 5.000 g
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PX Series Balance
x Oil Density: 0.80000 g / cm3 x Result: to select the display resolution of
Density’s weighing result.
0.01mg balance model: 0.1g/cm3, 0.01g/cm3, 0.001g/cm3, 0.0001g/cm3,
0.00001g/cm3 0.1mg balance model: 0.1g/cm3, 0.01g/cm3, 0.001g/cm3, 0.0001g/cm3
1mg balance model: 0.1g/cm3, 0.01g/cm3, 0.001g/cm3 0.01g balance model:
0.1g/cm3, 0.01g/cm3 0.1g balance model: 0.1g/cm3
Four types of density determination can be made:
1. Solid more density than the auxiliary liquid 2. Solid less density than
the auxiliary liquid 3. Liquid density 4. Porous material (impregnated with
oil)
The following are the operating procedures for determining density of solid,
liquid and porous material with water as the auxiliary liquid. Other auxiliary
liquids are also applicable for density determination.
4.5.1 Measuring the Density of a Sinking Solid Using Water
Press and hold the Function / Mode button until Density appears. Press Yes to
initiate the Density Determination.
Item Settings: x Sample type: Solid x Auxiliary Liquid: Water x Porous
Material: Off x Water Temperature: Measure the actual water temperature using
a precision thermometer.
The water temperature is 20.0 by default.
Press No or Back to increase or decrease the value of temperature. The balance
calculates water density based on the water temperature value entered.
PX Series Balance 1. Weigh the sample in air using the balance and the density
determination kit. When the * (symbol of stability) appears, press the
Function / Mode button to confirm the weight of the sample in the air.
2. Weigh the sample submerged in the liquid using the balance and the density
determination kit. Note: Lower the sample down into the liquid until it is
fully submerged.
3. Press the Function / Mode button to get the density of the sample. After
completion of the test, press the Function / Mode button to test a new sample.
4.5.2 Measuring the Density of a floating Solid Using Water 1. Press and hold
the Function / Mode button until Density
appears. Press Yes to enter the Density Determination.
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2. In determining density with the balance, the balance
setup and density determination procedures are basically the same for a
floating solid and a non-floating solid except for the necessary holder (as
shown in the figure) to be used for density determination.
3. After completion of the test, press the Function / Mode
button to test a new sample. Note: Lower the sample down into the liquid until
it is fully submerged.
Holder for non-floating solids
Holder for floating solids
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PX Series Balance
4.5.3 Measuring the Density of a Solid Using an Auxiliary Liquid other than
Water
1. Press and hold the Function / Mode button until Density appears. Press Yes
to enter the Density Determination.
Item Settings: x Sample type: Solid x Auxiliary Liquid: Other x Porous Material: Off
Set the density of the auxiliary liquid: 2. The default value of the auxiliary
liquid is 1.00000 g/cm3 3. Press No or Back to increase or decrease the value
in
accordance with the actual density of the auxiliary liquid.
4. See Section 4.5.1 and Section 4.5.2 for the specific procedures for
density determination.
5. Press the Function / Mode button to display the density of the sample.
6. After completion of the test, press the Function / Mode button to test a
new sample.
PX Series Balance
4.5.4 Measuring the Density of a Liquid Using a Calibrated Sinker
Press and hold the Function / Mode button until Density appears. Press Yes to
enter the Density Determination.
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Item Settings: Sample Type: Liquid Volume: The calibrated sinker has a default
volume of 10.0 ml, which can be increased or decreased by pressing No or Back.
After setting the volume, press Yes to begin the weighing. Note: when the
Density Type is set to Liquid, the Liquid type and Porous material selections
are disabled.
1. Weigh the calibrated sinker in the air with the balance and the density
determination kit. When the * (symbol of stability) appears, press the
Function / Mode button to confirm the weight of the calibrated sinker in the
air.
EN-18 2. Weigh the calibrated sinker submerged in the liquid with
the balance and the density determination kit. Lower the calibrated sinker
down into the liquid until it is fully submerged (1 cm below the surface of
the liquid). 3. When the * (symbol of stability) appears, press the Function /
Mode button to confirm the weight of the calibrated sinker. The density of the
liquid is displayed.
4. After completion of the test, press the Function / Mode button to test a
new sample.
4.5.5 Measuring the Density of Porous Material Using Oil
Press and hold the Function / Mode button until Density appears. Press Yes to
enter the Density Determination.
PX Series Balance
Item Settings:
x Sample type: Solid x Auxiliary Liquid: Water x Porous Material: On
PX Series Balance
Set the following parameters by pressing No or Back: x Water Temperature x
Weight x Oil Density
Measure the actual water temperature using a precision thermometer. The
balance calculates water density based on the water temperature value entered.
Note: The weight of the sample and the density of oil must be measured in
advance.
1. Weigh the oiled sample in the air with the balance and the density
determination kit.
2. When the (symbol of stability) appears, press the Function / Mode button
to confirm the weight of the oiled sample in the air.
3. Weigh the oiled sample in the liquid with the balance and the density
determination kit.
4. When the (symbol of stability) appears, press the Function / Mode button
to confirm the weight of the oiled sample in the liquid. The density of the
sample is displayed.
5. After completion of the test, press the Function / Mode button to test a
new sample.
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PX Series Balance
4.6 Formulation
Note: Before using any application, be sure the balance has been leveled and
calibrated. Use this application for compounding and recipe making. The
maximum number of components is 50.
Formulation
1. Press and hold the Function / Mode button until Formulation appears.
2. After confirmation by pressing Yes, the message “Place component 1” will
appear on the screen.
3. Place the first ingredient on the pan (or in a tared container) and press
the Function / Mode button to store the first weight.
4. Then, the message “Place component 2” will display. 5. Remove the first
ingredient or press the Tare button,
add the second ingredient to the pan, and press the Function / Mode button to
store the second weight. 6. Continue adding components, and press the Function
/ Mode button to store the weights.
7. Press No if no more ingredients need to be added. 8. The instructional
message will appear and ask to add
a filler material. 9. If a filler material needs to be added, place it on the
pan, and press the Function / Mode button when the * appears; if no filler
material needs to be added, press No.
PX Series Balance
10. The total weight will display. 11. Pressing the Function / Mode button
switches
between the total weight, the weight of component 1, component 2 and so forth
(as well as the weight of the filler if added).
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4.7 Additional Features
Weigh Below Note: Ensure the balance has been leveled and calibrated.
The PX balance is equipped with a weigh below hook for weighing below the
balance (as shown in the figure below).
Before turning the balance over, remove the pan and draft shield elements (if present) to prevent damage. Do not place the balance on the pan support cone or load cell pins. To use this feature, remove power from the balance, then remove the protective cover for the weigh below opening. Power on the balance, and then use a string or wire to attach items to be weighed.
Weigh Below protective cover
Weigh Below hook
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PX Series Balance
5.MENU SETTINGS
5.1 Menu Navigation
TABLE 5-1. USER MENU STRUCTURE
Calibration
Internal Cal Automatic Cal
Span Cal Linearity Cal InCal Adjust
Setup Password Language Filter Level
AZT Auto Tare Graduations
Date format
Date Time Format
Time Brightness Auto Dim
Auto Off Capacity Bar
Approved Mode
Units Gram Kilogram Milligram Carat Newton Pound
Ounce
Ounce Troy Grain
Pennyweight Momme Mesghal
Hong Kong Tael
Singapore Tael Tanwan Tael
Tical Tola Baht Custom unit
RS232
Baud Rate Transmission Handshake
Print
Stable Only Numeric Only Single Header
Print To Auto Print
Output Format
Batch Printing
Label Printing
Header Date and
Time Balance ID
Balance Name
User Name
Project Name Application Name Result Gross Net Tare Signature Line Line Feed
GLP
Header 1
Header 2
Header 3
Header 4
Header 5 Balance Name
User Name Project Name
Factory Reset
Reset All
Lockout
Calibration Setup Units RS232 Print
GLP Factory Reset
Note: PX balances are classified into InCal models and ExCal models.
5.1.1 Changing Settings
To change a menu setting, navigate to that setting using the following steps:
Enter the Menu Long press the Menu button to enter the Menu.
Select the Sub-Menu Press No to step between the sub-menus, and press Yes to enter the sub-menu.
Select the Menu Item Press No to step through the Menu Items, and press Yes to enter the displayed Menu Item.
PX Series Balance
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5.2 Calibration
PX balances offer a choice of three calibration methods: Internal Calibration
(for InCal models only), Span calibration and Linearity Calibration.
Attention: Do not disturb the balance during any calibration.
5.2.1 Calibration Sub-menu (InCal models)
Note: ExCal models only have Span Calibration and Linearity Calibration.
5.2.2 Internal Calibration (not applicable to ExCal models)
Calibration is accomplished with the internal calibration mass. Internal
Calibration can be performed at any time, provided the balance has warmed up
to operating temperature and is level. With the Balance turned ON and no load
on the pan, the internal calibration can be performed. Alternatively, press
the Tare / Menu-Cal button and select Internal Cal to initiate the internal
calibration. The screen shows the status, and then press any button to return
to the current application after calibration.
5.2.3 Automatic Calibration (PX85 PX125D PX225D ONLY)
When Automatic Calibration is set ON, the balance performs a self calibration:
· when it senses a temperature change of 1.5°C · or every 3 hours
AutoCal will automatically calibrate the Balance (using the internal mass)
each time there is a change in temperature significant enough to affect
accuracy.
5.2.4 InCal Adjust (not applicable to ExCal models)
Use this calibration method to fine tune the effect of the Internal
Calibration. Calibration Adjust may be used to adjust the result of the
Internal Calibration by +100 divisions.
Note: Before making a calibration adjustment, perform an Internal Calibration. To verify whether an adjustment is needed, place a test mass equal to the span calibration value on the pan and note the difference (in divisions) between the nominal mass value and the actual balance reading. If the difference is within +/- division, calibration adjustment is not required. If the difference exceeds +/-1 division, calibration adjustment is recommended.
Example:
Expected weight reading: Actual weight reading: Difference in gram: Difference in division:
200.000 (Test mass value) 200.014 0.014 14 (InCal Adjust value)
To perform a Calibration Adjustment, select InCal Adjustment from the list of Calibration Menu; enter the value (positive or negative divisions) to match the difference noted earlier in the procedure. Recalibrate using Internal Calibration. After calibration, place the test mass on the pan and verify that the mass value now matches the displayed value. If not, repeat the procedure until Internal Calibration reading agrees with the test mass. Once completed, the balance stores the Adjustment value and the display returns to the current application.
5.2.5 Span Calibration
Span calibration uses two calibration points, one at zero load and the other
at specified full load (span). For detailed calibration mass information,
please see the specification tables in section 9.1. With the balance turned ON
and no load on the pan, Span Calibration can be performed. The best accuracy
is achieved using the mass closest to the full span value.
EN-24 Steps for span calibration
1. Press and hold the Tare / Menu-Cal button, and the Calibration Menu will
display.
2. Press Yes to enter the Calibration Menu. To change the calibration mode,
press No until Span Cal (span calibration) is displayed.
3. Press Yes to begin the span calibration.
4. The calibration masses value will be shown in the screen. After the
display shows “Place weights” and “100.000 g”, place weight(s) of 100 g on the
pan for calibration. To change to the calibration point of half full capacity
(e.g. 50 g), press the Function / Mode button. After the screen shows “Place
weights” and “50.000 g”, place weight(s) of 50 g on the pan for calibration.
5. Remove the weight from the pan.
PX Series Balance
PX Series Balance
6. Once the span calibration is completed successfully, “Calibration done”
will display. Press any button to return to the previous screen.
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5.2.6 Linearity Calibration
Linearity calibration uses three calibration points, one at zero load and the
others at specified loads.
For detailed calibration mass information, please see the specification tables
in section 9.1. With no load on the scale, Linearity Calibration can be
performed. The balance captures the zero point, and then prompts for the next
weight. Continue to follow the instructions on the display until the
calibration is completed.
Steps for linearity calibration
1. Press and hold the Tare / Menu-Cal button, and the Calibration Menu will
display.
2. Press Yes to enter the Calibration Menu. To change the calibration mode,
press No until Linearity Cal (linearity calibration) is displayed.
3. Press Yes to begin the linearity calibration.
EN-26 4. Calibration masses value will be shown in the screen. After the
display shows “Place weights” and “50.0000 g”, place weight(s) of 50 g on the
pan for calibration.
5. Remove the weight(s) of 50 g from the pan. After a while, “100.0000 g”
will be displayed on the screen. Please place weight(s) of 100 g on the pan
for calibration.
6. Once the linearity calibration is completed successfully, “Linearity done”
will display. Press any button to return to the previous screen.
PX Series Balance
5.3 Balance Setup
Enter this sub-menu to customize balance functionality. Note: The factory
default settings are shown below in bold.
5.3.1 Password
Entering the password: The password should be a combination of 1, 2 and 3 with
the maximum length of 6 digits.
Button
Numeric/Function
1 / Confirm
2 / Cancel
Instructional
3
message
“Do you confirm?”
For example, if the user wants to set the password as “132”, the following
steps should be taken:
1. First press Zero / Yes, then Function / Mode, and Print / Unit at last. 2.
Press Tare / Menu, and the message “Do you confirm?” will appear on the
screen. 3. Press Yes or No to confirm or cancel the password input.
When the Password is set On and the password is not correctly entered, the
menu settings are affected as follows:
z Calibration Menu: Auto Calibration, InCal Adjustment, Span Calibration and
Linearity Calibration are locked at the current settings.
PX Series Balance
EN-27
z Setup Menu: Language, Filter level, Auto Zero Tracking, Auto Tare, Graduations, Date Format, Date Setting, Time Format and Time Setting are locked at the current settings.
z Units Menu: All settings are locked.
z Print Menu: All settings are locked.
z GLP Menu: All settings are locked.
z Factory Reset Menu: All settings are locked.
z RS232 Menu: All settings are locked.
5.3.2 Language
Set the language displayed for menus and displayed messages.
English
Deutsch
Français
Italiano
Polski
Español
Türkçe
Português
5.3.3 Filter Level
Set the amount of signal filtering.
Low Medium High
= faster stabilization time with less stability. = normal stabilization time with normal stability. = slower stabilization time with more stability.
Note: For 0.01mg balance model, the default is High.
5.3.4 AZT (Auto Zero Tracking)
Set the automatic zero tracking functionality.
Off = disabled. 0.5 d = display maintains zero up to a drift of 0.5 graduation per second. 1 d = display maintains zero up to a drift of 1 graduation per second. 3 d = display maintains zero up to a drift of 3 graduations per second.
EN-28
5.3.5 Auto Tare
Set the automatic tare. Off = disabled. On = enabled.
Note: “Place container” will be displayed when Automatic Tare is set to On.
PX Series Balance
5.3.6 Graduations
Set the displayed readability of the balance.
1 Division = standard readability. 10 Divisions = readability is increased by
a factor of 10. For example, if the standard readability is 0.01g, selecting
10 Divisions will result in a displayed reading of 0.1 g.
5.3.7 Date Format
Set the current date format. YYYY/MM/DD MM/DD/YYYY DD/MM/YYYY
5.3.8 Date Setup
Set the date in the current date format. For example, if the date format is
MM/DD/YYYY, the date could be set as “06/22/2017 Thu”.
5.3.9 Time Format
Set the current time format. 24HR 12HR
5.3.10 Time Setup
Set the time in the current time format.
For example, if the time format is 24HR, the time could be set as 08:00:00.
5.3.11 Brightness
Set the brightness of the display. Low Medium High
5.3.12 Auto Dim
Set whether the balance automatically turns off the display backlight of the
display. Off = disabled 10 minutes = become dim if there is no motion for 10
minutes 20 minutes = become dim if there is no motion for 20 minutes 30
minutes = become dim if there is no motion for 30 minutes
PX Series Balance
EN-29
5.3.13 Auto Off
Off = disabled 30 minutes = turns off if there is no motion for 30 minutes 1
hour = turns off if there is no motion for 1 hour 2 hours = turns off if there
is no motion for 2 hours
5.3.14 Capacity Bar
Off = disabled On = enabled When the capacity is set On, a capacity bar will
display at the bottom of the screen. The capacity bar will roughly show the
current weight as a percentage of balance capacity. When the display is at
zero, the capacity bar will not display.
5.3.15 Approved Mode
Use this menu to set the Legal for Trade status.
Off = standard operation. On = operation complies with Legal Metrology
regulations.
Note: When Approved Mode is set to On, the menu settings are affected as
follows:
Calibration Menu: x For InCal models, only Internal Calibration is available. All other functions are hidden.
Balance Setup Menu: x Filter Level is locked at the current setting. x Auto Zero Tracking is limited to 0.5 Division and Off. The selected setting is locked. x Auto Tare is locked at current setting. x Graduations are forced to 1 Division and the menu item is hidden.
Communication Menu (Communication->Print Settings->Print Output): x Stable Weight Only is locked On. x Numeric Value Only is locked Off.
Communication Menu (Communication->Print Settings->Auto Print): x Auto print mode selections are limited to Off, On Stability, and Interval. Continuous is not available.
Lockout Menu: x Menu is hidden
Note: The security switch located at the rear of the balance must be in the locked position to set Approved Mode to On. The security switch must be in the unlocked position to set Approved Mode to Off. See Section 6.
EN-30
PX Series Balance
5.4 Weighing Units
Enter this sub-menu to activate the desired units of measure.
PX balances provide a choice of 19 units, which are all set On by default. Note: Due to national laws, the balance may not include some of the units of measure listed.
Display g kg mg ct N lb oz ozt GN
Unit Gram Kilogram Milligram Carat Newton Pound Ounce Troy ounce Grain
Display dwt mo msg tl H tl S tl T tcl tola baht C1
Unit Pennyweight Momme Mesghal HK tael SG tael TW tael Tical Tola Baht Custom unit
Changing Weighing Units
1. Press and hold the Print / Unit button until the Unit Menu is displayed.
2. The default unit is gram (g). To change the unit, press No to advance to the next unit.
3. Press Yes to set the unit displayed to the weighing unit.
PX Series Balance
EN-31
Defining Custom Unit Set Custom to On in the Unit menu to enable and define
the Custom Unit. The Custom Unit is defined by entering three parameters,
Factor, Exponent and LSD (least significant digit). Define the Custom Unit as
follows:
1. Determine how many custom units there are in 1 gram. 2. Convert the value
to scientific notation, e.g. m x 10n. 3. Enter the value of m as the Factor
setting. 4. Enter the value of n as the Exponent setting. 5. Enter the amount
that the Custom Unit steps by as the LSD setting.
Enter the Factor and the Exponent and LSD.
Custom Unit = Conversion Factor x Grams. The LSD is the value by which the displayed weight is incremented or decremented.
Note: The conversion factor is used by the balance to convert grams to the custom weighing unit and is defined by entering a factor and an exponent. The factor is a value between 0.1000000 and 1.999999 inclusive. For example: One cup of chemical 0.5643834×1 g, the factor should be set 0.5643834.
The exponent moves the decimal point of the factor to the right for positive values or to the left for negative values. For example: One cup of chemical 10 g, the exponent should be set 2.
The LSD is the value by which weight is incremented or decremented.
LSD Result
1
Display counts by 1
5
Display counts by 5
10
Display counts by 10
…
…
For example, if the displayed digital is 0.56 for one cup of chemical, the LSD should be set 100.
EN-32
PX Series Balance
5.5 RS232 Interface Setup
Enter this sub-menu to customize RS232 standard settings. Data may be output
to either a printer or a PC.
5.5.1 Baud Rate
Set the baud rate (bits per second). 1200 = 1200 bps 2400 = 2400 bps 4800 =
4800 bps 9600 = 9600 bps 19200 = 19200 bps 38400 = 38400 bps
5.5.2 Transmission
Set the data bits, stop bit, and parity.
8-NO-1 = 8 data bits, no parity, stop bit 1
8-NO-2 = 8 data bits, no parity, stop bit 2
7-EVEN-1 = 7 data bits, even parity, stop bit 1
7-EVEN-2 = 7 data bits, even parity, stop bit 2
7-NO-1 7-NO-2 7-ODD-1 7-ODD-2
= 7 data bits, no parity, stop bit 1 = 7 data bits, no parity, stop bit 2 = 7 data bits, odd parity, stop bit 1 = 7 data bits, odd parity, stop bit 2
5.5.3 Handshake
Set the flow control method.
None
= no handshaking
Xon-Xoff
= XON/XOFF handshaking
Hardware
= hardware handshaking
5.6 Print Settings
Enter this sub-menu to customize data transfer settings.
5.6.1 Stable Only
Off = values are printed immediately, regardless of stability. On = values are
printed only when the stability criteria are met.
5.6.2 Numeric Only
Off = All selected results are printed. On = Only numeric data values are
printed.
5.6.3 Single Header
Off = Headers will be printed for every print requirement. On = Headers will
be printed once a day.
5.6.4 Print To
PC = print data to a PC Printer = print data to a printer
PX Series Balance
5.6.5 Output Format
Select to use which format to print: OHAUS PX SICS: the Mettler Toledo
format. ST: the Sartorius format. OHAUS AR OHAUS PA
5.6.6 Batch Printing
Off = Disable batch printing. On = Enable batch printing. Note: for how to use
batch weighing, please refer to the Weighing section for details.
5.6.7 Label Printing
Off = Disable label printing. On = Enable label printing.
There is 1 built-in label template: – 100mm x 75mm, which is designed based on label size “100mm x 75mm”. This template includes all basic information “Data/Time”, “Balance Name”, “Balance ID”, “Gross Weight”, “Tare Weight”, “Net Weight”, and “Signature”.
The template can be edited via OHAUS Label Designer. Please go to the website below to download the software. https://dmx.ohaus.com/WorkArea/DownloadAsset.aspx?id=28916
For how to use the software, please contact an authorized dealer to obtain the software’s instruction.
5.6.8 Auto Print
Off On Stability1 Print Interval2
Continuous
= disabled = printing occurs each time the stability criteria are met. = printing occurs at the defined time interval. = printing occurs continuously.
1When On Stability is selected, set the conditions for printing.
Load = Prints when the displayed load is stable. Load and Zero = Prints when the displayed load and zero readings are stable.
2When Print Interval is selected, set the time interval using the numeric keypad.
Settings of 1 to 3600 seconds are available. Default is 0.
5.6.9 Header
On = the header is printed. Off = the header is not printed.
5.6.10 Date and Time
On = the date and the time are printed. Off = neither the date nor the time is
printed.
5.6.11 Balance ID
On = the balance ID is printed. Off = the balance ID is not printed.
EN-33
EN-34
5.6.12 Balance Name
On = the balance name is printed. Off = the balance name is not printed.
5.6.13 User Name
On = the user name is printed. Off = the user name is not printed.
5.6.14 Project Name
On = the project name is printed. Off = the project name is not printed.
5.6.15 Application Name
On = the application name is printed. Off = the application name is not
printed.
5.6.16 Result
On = the weighing result is printed. Off = the weighing result is not printed.
5.6.17 Gross
On = the gross weight is printed. Off = the gross weight is not printed.
5.6.18 Net
On = the net weight is printed. Off = the net weight is not printed.
5.6.19 Tare
On = the tare weight is printed. Off = the tare weight is not printed.
5.6.20 Line Feed
1 Line = move the paper up one line after printing. 4 Lines = move the paper
up four lines after printing.
5.6.21 Signature Line
On = the Signature Line is printed. Off = the Signature Line is not printed.
PX Series Balance
PX Series Balance
5.7 GLP
Enter this menu to set the Good Laboratory Practices (GLP).
5.7.1 Header
Enables the printing of GLP headings. There are up to 5 headings available.
Alphanumeric settings up to 25 characters are available for each Header
setting
5.7.2 Balance Name
Set the balance name. Alphanumeric settings up to 16 characters are available.
5.7.3 User Name
Set the user name. Alphanumeric settings up to 16 characters are available.
The default is blank.
5.7.4 Project Name
Set the project name. Alphanumeric settings up to 16 characters are available.
The default is blank.
5.8 Factory Reset
Use this sub-menu to reset the all menu settings to their Factory default
settings. Reset All = resets all menus to their factory default settings. Exit
= return to application main screen without resetting any menus.
5.9 Lockout
Use this sub-menu to lock/unlock certain menus. Off = the menu is unlocked On
= the menu is locked
EN-35
EN-36
PX Series Balance
6.LEGAL FOR TRADE (LFT)
When the balance is used in trade or a legally controlled application it must
be set up, verified and sealed in accordance with local weights and measures
regulations. It is the responsibility of the purchaser to ensure that all
pertinent legal requirements are met.
6.1 Settings
Before the verification and sealing perform the following steps:
1. Verify the menu settings meet the local weights and measures regulations.
2. Perform a calibration as explained in Section 5. 3. Set the position of the
security switch as shown in Section 6.3.
Note: When the security switch is set on the following menu settings cannot be
changed: calibration, setup, mode, unit and lockout. For more details, see
Section 5.3.15.
6.2 Verification
The local weights and measures official or authorized service agent must
perform the verification procedure.
6.3 Securing the Menu
A slide switch is used to secure the Lock menu settings. When the switch is
set to the On position, the Lock menu settings may be viewed but not changed.
This switch is located behind the Base.
Set the position of the switch to ON by sliding the external Lock Switch to
LOCKED as shown in the figure below.
Note: This switch is also used in conjunction with the Legal for Trade menu
item. When the Legal for Trade menu is set to ON, the switch must be set to
the On position to prevent calibration and changes to metrologically
significant settings.
6.4 Sealing Access to the Balance Settings
The local weights and measures official or authorized service agent must apply
a security seal to prevent tampering with the settings. Refer to the
illustrations below for the sealing methods.
Un-locked
Locked with Paper Seal
Locked with Wire Seal
PX Series Balance
EN-37
7. Printing
7.1 Connecting, Configuring and Testing the Printer / Computer Interface
Use the built-in RS-232 Port to connect either to a computer or a printer. If
connecting to a computer, use HyperTerminal or similar software like SPDC
described below. (Find HyperTerminal under Accessories/Communications in
Windows XP.)
Connect to the computer with a standard (straight-through) serial cable.
Choose New Connection, “connect using” COM1 (or available COM port). Select
Baud=9600; Parity=8 None; Stop=1; Handshaking=None. Click OK. Choose
Properties/Settings, then ASCII Setup. Check boxes as illustrated: (Send line
ends…; Echo typed characters…; Wrap lines…) Use RS232 Interface Commands
(Section 9.6.1) to control the balance from a PC.
SPDC Software
The Serial Port Data Collection / SPDC software is provided by Ohaus and can
be used on operating systems that do not have the HyperTerminal software
mentioned above. SPDC software can preliminarily collect and transfer the data
to Microsoft files (such as Excel, Word, etc.).
Choose the export file type and export file path and then press Run as shown
below.
Note: The latest SPDC software support English and Chinese language and can be downloaded from the Ohaus’ website. For more information, refer to the SPDC Data Collection Instruction Manual.
EN-38
PX Series Balance
7.2 Output Format
The Result Data, and G/N/T data, is output in the following format.
Field: Length:
Label 1 Space 2
Weight 3
Space2 Unit 4
Space Stability 5
Space
G/N 6
Space
Term. Characters 7
1
11
1
5
1
d 1
d1 d3 0
d 8
Note: 1. The length of the label field is not fixed.
2. Each field is followed by a single delimiting space (ASCII 32).
3. The Weight field is 11 right justified characters. If the value is
negative, the ‘’ character is located at the immediate left of the most
significant digit.
4. The Unit field contains the unit of measure abbreviation up to 5
characters, right justified.
5. The Stability field contains the “?” character if the weight reading is
not stable. The Stability field and the following Space field are omitted if
the weight reading is stable.
6. The G/N field contains the net or gross indication. For net weights, the
field contains “N”. For gross weights, the field contains “G”.
7. The Termination Characters field contains CRLF, Four CRLF or Form Feed
(ASCII 12), depending on the LINE FEED menu setting.
8. When Numeric Only is set On, only the Weight Field is printed, left-
aligned.
7.3 Printout Examples
Examples for each Application are shown with all items turned ON in the Print
menu. The default values for Header lines 1-5 are also shown.
BASIC WEIGHING
BATCH WEIGHING
Header 1
Header 2
Header 3
Header 4
Header 5
07/19/2017 17:56:23
Balance ID: B234567890
Balance Name: PX5202
User Name:
Project Name:
Weighing
49.98 g
Gross:
49.98 g G
Net:
49.98 g N
Tare:
0.00 g T
Signature: ____ Verified By: ____
07/19/2017 17:56:23 Balance ID: B234567890 Balance Name: PX224 User Name:
Project Name: Weighing Start Time: End Time:
—- Sample Data (g) —-1: 5.2403 g 2: 6.2404 g 3: 7.0000 g 4: 8.2404 g 5: 8.2404
g 6: 9.2404 g 7: 11.2404 g 8: 22.2404 g 9: 24.2404 g 10: 25.2404 g
Signature: ____ Verified By: ____
PX Series Balance
PART COUNTING
Header 1
Header 2
Header 3
Header 4
Header 5
07/19/2017 17:57:19
Balance ID: B234567890
Balance Name: PX5202
User Name:
Project Name:
Parts Counting
Quantity: 4999 PCS
Gross:
49.99 g G
Net:
49.99 g N
Tare:
0.00 g T
APW: 0.010 g
Sample Size: 10 PCS
Signature: ____ Verified By: ____
PERCENT WEIGHING
Header 1
Header 2
Header 3
Header 4
Header 5
07/19/2017 17:57:19
Balance ID: B234567890
Balance Name: PX223/E
User Name:
Project Name:
Percent Weighing
Percentage: 10.156 % N
Gross:
23.361 g G
Net:
10.156 g N
Tare:
13.205 g T
Reference weight: 100.000 g
Signature: ____ Verified By: ____
EN-39
DYNAMIC WEIGHING
Header 1
Header 2
Header 3
Header 4
Header 5
07/19/2017 18:00:12
Balance ID: B234567890
Balance Name: PX5202
User Name:
Project Name:
Dynamic Weighing
Final weight: 49.99 g
Gross:
50.06 g G
Net:
50.06 g N
Tare:
0.00 g T
Averaging Time: 10 s
Signature: ____ Verified By: ____
DENSITY
(Density Type=Solid, auxiliary liquid=water,porous material=on)
Header 1
Header 2
Header 3
Header 4
Header 5
07/19/2017 18:03:23
Balance ID: B234567890
Balance Name: PX5202
User Name:
Project Name:
Density
Density: 0.0345 g/cm³
Gross:
49.99 g G
Net:
49.99 g N
Tare:
0.00 g T
Oiled Weight: 199.89 g
Weight in liquid: 49.98 g
Auxiliary liquid: Water
liquid density: 0.9982 g/cm³
Temp.: 20.0
Porous: On
Oil density: 0.8000 g/cm³
Dry Weight: 5.00 g
Signature: ____ Verified By: ____
DENSITY
(Density Type=liquid, sinker volume=10ml)
Header 1
Header 2
Header 3
Header 4
Header 5
07/19/2017 18:05:17
Balance ID: B234567890
Balance Name: PX5202
User Name:
Project Name:
Density
Density: 14.9820 g/cm³
Gross:
49.98 g G
Net:
49.98 g N
Tare:
0.00 g T
Weight in air: 199.88 g
Weight in liquid: 50.05 g
Sinker Volume: 10.0 ml
Signature: ____ Verified By: ____
EN-40
INTERNAL CALIBRATION
-OHAUS07/26/2017 05:16:53 Balance ID: Balance Name: PX2202 User Name: Project Name: —Internal Calibration–Calibration is done. Difference weight: 0.00 g
Signature: ____ Verified By: ____
SPAN CALIBRATION
-OHAUS03/19/2000 04:51:46 Balance ID: Balance Name: PX2202ZH/E User Name: Project Name: —Span Calibration–Calibration is done. Reference weight: 2000.00 g Actual weight: 2000.22 g Difference weight: 0.22 g Weight ID: ____
Signature: ____ Verified By: ____
PX Series Balance
LINEARITY CALIBRATION
-OHAUS01/01/2000 17:30:47 Balance ID: Balance Name: PX5202M User Name: Project Name: —Linearity Calibration–Calibration is done.
Signature: ____ Verified By: ____
PX Series Balance
EN-41
8.MAINTENANCE
8.1 Calibration
Periodically verify calibration by placing an accurate weight on the balance
and viewing the result. If calibration is required, refer to section 5.2 for
instructions.
8.2 Cleaning
WARNING: Disconnect the balance from the power supply before cleaning. Make
sure that no liquid enters the interior of the balance.
Clean the balance at regular intervals. Housing surfaces may be cleaned with a lint-free cloth slightly dampened with water or a mild cleaning agent. Glass surfaces may be cleaned with a commercial glass cleaner. Attention: Do not use solvents, harsh chemicals, ammonia or abrasive cleaning agents.
8.3 Troubleshooting
TABLE 8-1. TROUBLESHOOTING
Symptom / Display
Possible Cause
Remedy
Cannot change menu settings
The sub-menu is locked. MENU
Unlock the sub-menu in Lockout Menu.
Certain sub-menu is hidden.
This is an approved model, which requests to block certain sub-menu.
Setup the balance before you turn on the Legal for Trade setting.
The average piece weight of the sample is Recaluate the APW value.
too small (less than 0.1d) in Parts
If error persists, please use a different
Counting mode.
sample.
The reference weight on the pan is too small (less than 100d) in Percent Weighing mode.
Put more samples on the pan.
The environment is not stable. The environment is not stable. Incorrect calibration masses are used. System error
Move balance to a suitable location.
Move balance to a suitable location and calibrate again. Use calibration
masses to calibrate accodrding to the correct calibration points in the
specification table in the instruction manual. If error persists, please
contact OHAUS service (www.ohaus.com – More – Contact Us)
EN-42 Symptom / Display
PX Series Balance
Possible Cause A wrong weighing pan is used when power on.
The load on the pan is over the initial weight setting.
A wrong weighing pan is used when power on.
Remedy Use OHAUS original weighing pan before power on.
Remove the load from the pan before power on.
Use OHAUS original weighing pan before power on.
The pan is not installed when power on. Install the weighing pan before power on.
The weight on the pan is too heavy.
Reduce sample size until the weight is within the weighing capacity.
The pan is not properly installed.
Install the weiging pan properly
System error System error
Please contact OHAUS service (www.ohaus.com – More – Contact Us)
Please contact OHAUS service (www.ohaus.com – More – Contact Us)
System error
Disconnect the power and restart. If error persists, please contact OHAUS service (www.ohaus.com – More – Contact Us)
8.4 Service Information
If the troubleshooting section does not resolve your problem, contact an
Authorized Ohaus Service Agent. Please visit our website www.ohaus.com to
locate the Ohaus office nearest you.
PX Series Balance
EN-43
9.TECHNICAL DATA
9.1 Specifications
Ambient conditions x Indoor use only x Altitude: Up to 2000 m x Specified
Temperature range: 10°C to 30°C x Humidity: maximum relative humidity 80% for
temperatures up to 30°C, decreasing linearly to 50% relative
humidity at 40°C x Operability is assured at ambient temperatures between 5°C
and 40°C x Mains supply voltage fluctuations: up to ±10% of the nominal
voltage x Installation category II x Pollution degree: 2 x Supply voltage:
12V0.5A
Materials x Bottom Housing: Die-cast Aluminum, Painted x Top Housing: Plastic (HIPS) x Weighing Platforms: Stainless steel x Draft Shield: Glass, plastic (HIPS) x Feet: Plastic (ABS)
EN-44
InCal Model ExCal Model Maximum Capacity (g) (Fine range/Full range) Readability d, Fine Range (mg) Readability d, Full Range (mg) Repeatability (sd.) , 5% of Full Load (mg) Repeatability (sd.), 5% of Full Load to Fine Range Max (mg)
PX85**
82 0.01 0.01 0.01 0.02
TABLE 9-1. SPECIFICATIONS
PX125D PX225D
PX84 PX84/E
52/120
82/220
82
0.01
0.01
/
0.1
0.1
0.1
0.01
0.01
0.08
0.02
0.02
/
PX Series Balance
PX124 PX124/E
120 / 0.1
0.08
/
PX224 PX224/E
220 / 0.1
0.08
/
Repeatability (sd. ), Fine Range Max
to Full Range
0.02
0.1
0.1
0.1
0.1
0.1
Linearity Deviation, Typical (mg) Linearity Deviation (mg) Stabilization Time
Typical (s) Sensitivity Temperature Drift (PPM/K) Typical Minimum Weight USP
(USP K=2,U=0.10%) Optimized Minimum -Weight (g) (USP, u=0.10%, k=2) SRP0.41d*
Units
± 0.06 ± 0.1
10 ±0.8
20 mg
± 0.06 ± 0.1
10 ±0.8
20 mg
± 0.06 ± 0.1
10 ±0.8
20 mg
± 0.06 ± 0.2
3 ±3
160 mg
± 0.06 ± 0.2
3 ±3
160 mg
± 0.06 ± 0.2
3 ±3
160 mg
8.2 mg
8.2 mg
8.2 mg
82 mg
82 mg
82 mg
Gram, Milligram, Carat, Ounce, Ounce Troy, Grain, Pennyweight, Momme, Mesghal,
Tical
(MM), Tola (India), Baht, 1 Custom unit
Gram, Milligram, Carat, Newton, Ounce, Ounce Troy, Grain, Pennyweight, Momme, Hong Kong Tael, Singapore Tael, Taiwan Tael, Tical (MM), Tola (India), 1 Custom unit, Kilogram, Pound, Baht
Applications
Platform Size (diameter, mm) Span Calibration Points (g) Linearity Calibration
Points (g) Tare Range
Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density Determination, Formulation
80 50, 80 0, 40, 80
80 50, 100 0, 50, 100
80
90
100, 200
50, 80
0, 100, 200
0, 40, 80
To capacity by subtraction
90 50, 100 0, 50, 100
90 100, 200 0, 100, 200
Power Supply
Power input: 100-240V ~ 200mA 50-60Hz 12-18VA Power output: 12 VDC 0.5A
Assembled Dimensions (W x D x H) (mm)
209 x 321 x 309
Communication
RS232, USB
Operating Temperature Range
Operating conditions for ordinary lab application: +10°C to 30°C (operability guaranteed between +5°C and 40°C).
Storage Temperature Range
Humidity: maximum relative humidity 80 % for temperatures up to 30°C, decreasing linearly to 50% relative humidity at 40°C
Storage Conditions
-10°C to 60°C, humidity 10% to 90%, without condensation
Net Weight
10 lb / 4.5 kg
Shipping Weight
15.4 lb / 7 kg
Shipping Dimensions (W x D x H) (mm)
507 x 387 x 531
Note:
*SRP refers to the standard deviation for n replicate weightings (n10). ** Automatic Calibration models
PX Series Balance
EN-45
TABLE 9-2. SPECIFICATIONS (continued)
InCal Model ExCal Model Capacity (g) Readability d (g) Repeatability (sd.), 5% of Full Load (g) Repeatability (sd.), 5% of Full Load to Full Range (g) Linearity Deviation, Typical (g) Linearity Deviation (g) Stabilization Time Typical (s) Sensitivity Temperature Drift (PPM/K) Typical Minimum Weight USP (USP K=2,U=0.10%) Optimized Minimum Weight (g) (USP, u=0.10%, k=2) SRP0.41d*
PX163 PX163/E
160 0.001 0.0008
0.001
±0.0006 ±0.002
2 ±9
1.6 g
0.82g
PX223 PX223/E
220 0.001 0.0008
0.001
±0.0006 ±0.002
2 ±9
1.6 g
0.82g
PX323 PX323/E
320 0.001 0.0008
0.001
±0.0006 ±0.002
2 ±3
1.6 g
0.82g
PX423 PX423/E
420 0.001 0.0008
0.001
±0.0006 ±0.002
2 ±3
1.6 g
0.82g
PX523 PX523/E
520 0.001 0.0008
0.001
±0.0006 ±0.002
2 ±3
1.6 g
0.82g
PX623 PX623/E
620 0.001 0.0008
0.001
±0.0006 ±0.002
2 ±3
1.6 g
0.82g
Gram, Milligram, Carat, Newton, Ounce, Ounce Troy, Grain, Pennyweight,
Units
Momme, Hong Kong Tael, Singapore Tael, Taiwan Tael, Tical (MM), Tola (India),
1 Custom unit, Kilogram, Pound, Baht
PX822 PX822/E
820 0.01
0.008
PX1602 PX1602/E
1600 0.01
0.008
PX2202 PX2202/E
2200 0.01
0.008
0.01
0.01
0.01
±0.006 ±0.02
1
±6
±0.006 ±0.02
1
±6
±0.006 ±0.02
1
±6
16 g
16 g
16 g
8.2 g
8.2 g
8.2 g
Gram, Kilogram, Carat, Newton, Pound, Ounce, Ounce Troy, Grain, Pennyweight,
Momme, Mesghal, Hong Kong Tael, Singapore Tael, Taiwan Tael, Tical (MM),
Tola (India), Baht, 1 Custom unit
Applications
Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density Determination, Formulation
Platform Size (diameter, mm) Span Calibration Points (g) Linearity Calibration Points (g)
120
120
120
120
120
120
180
180
180
100, 150, 160
0, 80, 160
100, 200
200, 300
200, 400
300, 500
300, 500, 600
500, 800 1000, 1500 1600
0, 100, 200 0, 150, 300 0, 200, 400 0, 250, 500 0, 300, 600 0, 400, 800 08001600
1000, 2000
0, 1000, 2000
Tare Range
To capacity by subtraction
Power Supply
Power input: 100-240V ~ 200mA 50-60Hz 12-18VA Power output: 12 VDC 0.5A
Assembled Dimensions (W x D x H) (mm)
209 x 321 x 309
209 x 321 x 98
Communication Operating Temperature Range Storage Temperature
Range
RS232, USB
Operating conditions for ordinary lab application: +10°C to 30°C (operability
guaranteed between +5°C and 40°C). Humidity: maximum relative humidity 80% for
temperatures up to 30°C, decreasing linearly to 50% relative humidity at 40°C
Storage Conditions
-10°C to 60°C, humidity 10% to 90%, without condensation
Net Weight Shipping Weight
10 lb / 4.5 kg 15.4 lb / 7 kg
7.7 lb / 3.5 kg 11 lb / 5 kg
Shipping Dimensions (W x D x H) (mm)
507 x 387 x 531
550 x 385 x 291
Note: *SRP refers to the standard deviation for n replicate weightings (n10).
EN-46
PX Series Balance
TABLE 9-3. SPECIFICATIONS (continued)
InCal Model ExCal Model Capacity (g) Readability d (g) Repeatability (sd.), 5%
of Full Load (g) Repeatability (sd.), 5% of Full Load to Full Range (g)
Linearity Deviation, Typical (g) Linearity Deviation (g) Stabilization Time
Typical (s) Sensitivity Temperature Drift (PPM/K) Typical Minimum Weight USP
(USP K=2,U=0.10%) Optimized Minimum Weight (g) (USP, u=0.10%, k=2) SRP0.41d*
Units
PX3202 PX3202/E
3200 0.01
0.008
PX4202 PX4202/E
4200 0.01
0.008
PX5202 PX5202/E
5200 0.01
0.008
PX6202 PX6202/E
6200 0.01
0.008
PX2201 PX2201/E
2200 0.1
0.08
PX4201 PX4201/E
4200 0.1
0.08
PX6201/E 6200 0.1
0.08
PX8201/E 8200 0.1
0.08
0.01
0.01
0.01
0.01
0.1
0.1
0.1
0.1
±0.006 ±0.02
1
±3
±0.006 ±0.02
1
±3
±0.006 ±0.02
1
±3
±0.006 ±0.02
1
±3
±0.06 ±0.2
1
±10
±0.06 ±0.2
1
±10
±0.06 ±0.2
1
±10
±0.06 ±0.2
1
±10
16 g
16 g
16 g
16 g
160 g
160 g
160 g
160 g
8.2g
8.2g
8.2g
8.2g
82g
82g
82g
82g
Gram, Kilogram, Carat, Newton, Pound, Ounce, Ounce Troy, Grain, Pennyweight, Momme, Mesghal, Hong Kong Tael, Singapore Tael, Taiwan Tael, Tical (MM), Tola (India), 1 Custom unit
Applications
Platform Size (diameter, mm) Span Calibration Points (g) Linearity Calibration
Points (g) Tare Range
Power Supply
Assembled Dimensions (W x D x H) (mm) Communication Operating Temperature
Range Storage Temperature Range Storage Conditions Net Weight Shipping Weight
Shipping Dimensions (W x D x H) (mm)
Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density Determination, Formulation
180
180
180
180
180
180
180
180
2000, 3000 2000, 4000
0, 1500, 3000
0, 2000, 4000
3000, 5000 5000, 6000 1000, 2000 2000, 4000
0, 2500, 5000
0, 3000, 6000
0, 1000, 2000
To capacity by subtraction
0, 2000, 4000
Power input: 100-240V ~ 200mA 50-60Hz 12-18VA Power output: 12 VDC 0.5A
5000, 6000
0, 3000, 6000
5000, 8000
0, 4000, 8000
209 x 321 x 98
RS232, USB Operating conditions for ordinary lab application: +10°C to 30°C
(operability guaranteed between +5°C and
40°C). Humidity: maximum relative humidity 80 % for temperatures up to 30°C,
decreasing linearly to 50% relative humidity at 40°C -10°C to 60°C, humidity
10% to 90%, without condensation
7.7 lb / 3.5 kg 11 lb / 5 kg
550 x 385 x 291
Note: *SRP refers to the standard deviation for n replicate weightings (n10).
PX Series Balance
EN-47
TABLE 9-4. SPECIFICATIONS (continued)
InCal Approval Model Maximum Capacity (Fine range/Full range) (g) Readability
d, Fine Range (g) Readability d, Full Range (g) Verification Interval e (g)
Class Repeatability (sd.) , 5% of Full Load (g) Repeatability (sd.), 5% of
Full Load to Fine Range Max (g) Repeatability (sd. ) , Fine Range Max to Full
Range (g)
Linearity Deviation, Typical (g)
Linearity Deviation (g) Stabilization Time Typical (s) Sensitivity temperature
drift (PPM/K) Typical Minimum Weight USP (USP K=2,U=0.10%)
PX125DM** 52/120 0.00001 0.0001 0.001 I 0.00001
0.00002
0.0001
± 0.00006 ± 0.0001
10 ±0.8
20 mg
PX225DM**
82/220
0.00001 0.0001 0.001
I
0.00001
PX85M**
82
0.00001 0.00001 0.001
I
0.00001
PX124M
120
/ 0.0001 0.001
I
0.00008
PX224M
220
/ 0.0001 0.001
I
0.00008
PX323M
320
/ 0.001 0.01
II
0.0008
PX523M
520
/ 0.001 0.01
II
0.0008
PX623M
620
/ 0.001 0.01
II
0.0008
0.00002 0.00002
/
/
/
/
/
0.0001
± 0.00006 ± 0.0001
10 ±0.8
0.00002 0.0001 0.0001
± 0.00006
± 0.0001 10
± 0.00006 ± 0.0002
3
± 0.00006
± 0.0002 3
±0.8
±3
±3
0.001
± 0.0006 ± 0.002
2 ±3
0.001
± 0.0006 ± 0.002
2 ±3
0.001
± 0.0006 ± 0.002
2 ±3
20 mg
20 mg 160 mg 160 mg
1.6 g
1.6 g
1.6 g
Optimized Minimum -Weight (g)
(USP, u=0.10%, k=2) SRP 0.41d*
8.2 mg
8.2 mg
8.2 mg 82 mg 82 mg
0.82 g
0.82 g 0.82 g
Units
g, mg , ct
Applications
Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density Determination, Formulation
Platform Size (diameter, mm) Span Calibration Points (g)
Linearity Calibration Points (g) Tare Range Power Supply Assembled Dimensions
(W x D x H) (mm) Communication Operating Temperature Range
Storage Temperature Range Storage Conditions
80 50, 100 0, 50, 100
80 100, 200
80 50, 80
90 50, 100
90 100, 200
120 200, 300
0. 100, 200 0, 40, 80 0, 50, 100 0, 100, 200 0, 150, 300
To capacity by subtraction Power input: 100-240V ~ 200mA 50-60Hz 12-18VA
Power output12 VDC 0.5A
120 300, 500 0, 250, 500
120 300, 500,
600 0, 300,
600
209 x 321 x 309
RS232, USB Operating conditions for ordinary lab application: +10°C to 30°C
(operability guaranteed between +5°C and
40°C). Humidity: maximum relative humidity 80% for temperatures up to 30°C,
decreasing linearly to 50% relative
humidity at 40°C -10°C to 60°C, humidity 10% to 90%, without condensation
Net Weight
10 lb / 4.5 kg
Shipping Weight
15.4 lb / 7 kg
Shipping Dimensions (W x D x H) (mm)
507 x 387 x 531
Note:
*SRP refers to the standard deviation for n replicate weightings (n10).
** Automatic Calibration models
EN-48
PX Series Balance
TABLE 9-5. SPECIFICATIONS (continued)
InCal Approval Model Capacity (g) Readability d (g) Verification Interval e
(g) Class Repeatability (sd.) , 5% of Full Load (g) Repeatability (sd.), 5% of
Full Load to Full Range (g) Linearity Deviation, Typical (g) Linearity
Deviation (g) Stabilization Time Typical (s) Sensitivity temperature drift
(PPM/K) Typical Minimum Weight USP (USP K=2,U=0.10%) Optimized Minimum -Weight
(g) (USP, u=0.10%, k=2) SRP 0.41d* Units Applications Platform Size (diameter,
mm) Span Calibration Points (g) Linearity Calibration Points (g) Tare Range
Power Supply
PX3202M 3200 0.01 0.1 II
0.008
PX5202M 5200 0.01 0.1 II
0.008
PX6202M 6200 0.01 0.1 II
0.008
PX4201M 4200 0.1 0.1 II
0.08
0.01
± 0.006 ± 0.02
1
±3
0.01
± 0.006 ± 0.02
1
±3
0.01
± 0.006 ± 0.02
1
±3
0.1
± 0.06 ± 0.2
1
±10
16 g
16 g
16 g
160 g
8.2 g
8.2 g
8.2 g
82 g
g, kg , ct
Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density Determination
180
180
180
180
2000, 3000
3000, 5000
5000, 6000
2000, 4000
0, 1500, 3000
0, 2500, 5000
0, 3000, 6000
0, 2000, 4000
To capacity by subtraction
Power input: 100-240V ~ 200mA 50-60Hz 12-18VA
Power output12 VDC 0.5A
Assembled Dimensions (W x D x H) (mm) Communication
Operating Temperature Range
Storage Temperature Range
Storage Conditions Net Weight Shipping Weight Shipping Dimensions (W x D x H)
(mm) Note:
209 x 321 x 98
RS232, USB Operating conditions for ordinary lab application: +10°C to 30°C
(operability guaranteed between
+5°C and 40°C). Humidity: maximum relative humidity 80% for temperatures up to
30°C, decreasing linearly to 50%
relative humidity at 40°C -10°C to 60°C, humidity 10% to 90%, without
condensation
7.7 lb / 3.5 kg 11 lb / 5 kg 550 x 385 x 291
*SRP refers to the standard deviation for n replicate weightings (n10).
PX Series Balance
9.2 Drawings and Dimensions
Fully assembled dimensions
EN-49
Figure 9-1 0.001 g / 0.0001 g model
Figure 9-2 0.01 g / 0.1 g model
9.3 Accessories
TABLE 9-5. ACCESSORIES
DESCRIPTION
PART NUMBER
Auxiliary display, AD7-RS
30472064
Density Kit
80253384
Calibrated Sinker for Liquid Density Determination
83034024
USB Interface Cable
83021085
Security Device
80850043
RS232 Cable25 pin
80500524
RS232 Cable9 pin
80500525
Dust Cover
30093334
In-use Cover
30372546
Printer SF40A
30064202 (EU); 30064203 (AM)
Power Adapter for Balance
46001724
EN-50
9.4 Communication
9.4.1 Interface Commands
Commands listed in the following table will be acknowledged by the balance.
PX Series Balance
Command Characters
IP P CP SP H Z T xT***
PT ON OFF C IC AC PSN PV x# P# x% P% xRL xT
Function
Immediate Print of displayed weight (stable or unstable). Print displayed
weight (stable or unstable). Continuous Print. Print on Stability. Enter Print
Header Lines Same as pressing Zero Key Same as pressing Tare Key. Establish a
preset Tare value in displayed unit. X = preset tare value. Sending 0T clears
tare (if allowed). Prints Tare weight stored in memory. Brings out of Standby
Goes to Standby. Begin Span Calibration Begin Internal Calibration, same as
trigger from calibration menu. Abort Calibration. Attention: when LFT ON, the
operation is not allowed. Print Serial Number. Print terminal software
version, base software version and LFT ON (if LFT is set ON). Set Counting APW
(x) in grams. (must have APW stored) Print Counting application APW. Set
Percent application reference weight (x) in grams. (must have reference weight
stored) Print Percent application reference weight. 0 = disable response; 1 =
enable response. This command only controls the “OK!” response. Pre-tare the
container weight (x) in grams.
PX Series Balance
9.4.2 RS232 (DB9) Pin Connections
Diagram
Type
Interface type
Max. cable length Signal level
Connector Operating mode Transmission mode Transmission code Baud rates
Bits/parity
Stop bits Handshake End-of-line
EN-51
Description Voltage interface conforming to EIA RS-232C/DIN 66020 (CCITT
V24/V.28) 15 m Output: +5 V … +15 V (RL = 3 7k) -5 V … -15 V (RL = 3 – 7 k)
Input: +3 V … +25 V -3 V … -25 V Sub-D, 9-pole, female Full duplex Bit-serial,
asynchronous ASCII 1200, 2400, 4800, 9600, 19200, 38400 (firmware selectable)
7-bit/even, 7-bit/odd, 7-bit/none, 8-bit/none (firmware selectable) Stop bit
1, 2 None, XON/XOFF, RTS/CTS (selectable) Not selectable
9.4.3 USB Interface
The Ohaus USB Interface is a unique solution to the problem of connecting a
balance to a computer using a Universal Serial Bus (USB). USB devices are
categorized into classes such as disk drives, digital cameras, printers, etc.
Balances do not have a commonly used class so the Ohaus USB interface uses a
generic interface based on the RS232 serial standard.
Data sent from the balance to a computer is in USB format. The USB data is
directed to a virtual port. This port then appears as an RS232 port to the
application program.
When sending a command from a computer to the balance, the application program
sends a command to the virtual port as if it were an RS232 port. The computer
then directs the command from the virtual port to the computers USB connector
where the balance is connected. The port receives the USB signal and reacts to
the command.
System Requirements x PC running Windows 98®, Windows 98SE®, Windows ME®,
Windows 2000®, Windows XP®, Windows 7® or Windows 8® (32-bit) or Windows 10®.
x Available USB port (Type A, 4-pin, female)
9.4.4 USB Connection
The balance’s USB port terminates with a 4-pin, female, USB Type B connector.
A USB Cable (type B/male to type A/male) is required (not supplied).
1. Ensure that the balance is powered on and working properly. 2. Power on
the computer and verify that its USB port is enabled and working properly. 3.
Plug the cable’s USB connectors into the computer’s USB port and the balance’s
USB port. Windows®
should detect a USB device and the New Hardware Wizard will be initialized.
EN-52
Download from Ohaus’ Website
1.The New Hardware Wizard guides you through the required steps to select the
driver that is located on the website.
2.After clicking Finish, the virtual port should be ready for use. Windows®
typically adds the virtual port in sequence after the highest number COM port.
For example, on PC’s equipped with up to 4 COM ports, the virtual port will be
COM5.
When using the USB interface with programs that limit the number of COM port
designations (e.g. Ohaus MassTracker allows only COM1, 2, 3, & 4), it may be
necessary to assign one of these port numbers to the new virtual port.
PX Series Balance Example of Windows XP Hardware Wizard
This can be done in the Port Settings of the Device Manager utility, found in the Windows Control Panel.
USB INPUT
The balance will respond to various commands sent via the interface adapter.
Terminate the following commands when with a [CR] or [CRLF]
PX Commands
P
same as pressing Print
SP print stable weight only
IP
immediate print of displayed weight (stable or unstable)
CP Continuous print of weights
T
same as pressing Tare
Z
same as pressing Zero
PV print software version
xT establish a preset Tare value in displayed unit. X = preset tare value.
Sending 0T clears tare (if allowed).
Auto-Print Operation Once Auto-Print is activated in the menu, the balance will send data as required. If there is data in the print buffer the printer will finish printing this data.
10. SOFTWARE UPDATES
Ohaus is continuously improving its balance software. To obtain the latest
release, please contact your Authorized Ohaus Dealer or Ohaus Corporation.
PX Series Balance
EN-53
11. COMPLIANCE
Compliance to the following standards is indicated by the corresponding mark
on the product.
Mark
Standard
This product complies with the applicable harmonized standards of EU
Directives 2011/65/EU (RoHS), 2014/30/EU (EMC), 2014/35/EU (LVD) and
2014/31/EU (NAWI). The EU Declaration of Conformity is available online at
www.ohaus.com/ce.
This product complies with the EU Directive 2012/19/EU (WEEE) and 2006/66/EC
(Batteries). Please dispose of this product in accordance with local
regulations at the collecting point specified for electrical and electronic
equipment. For disposal instructions in Europe, refer to www.ohaus.com/weee.
This product complies with the applicable statutory standards of the
Restriction of the Use of Certain Hazardous Substances in Electrical and
Electronic Equipment Regulations 2012, UK Electromagnetic Compatibility
Regulations 2016, Electrical Equipment (Safety) Regulations 2016 and Non-
Automatic Weighing Instruments Regulations 2016. The UK Declaration of
Conformity is available online at www.ohaus.com/uk-declarations.
EN 61326-1
CAN/CSA-C22.2 No. 61010-1 UL Std. No. 61010-1
Important notice for PX/PXP/PJX/PR…M verified weighing instruments in the EU
and UK
When the instrument is used in trade or a legally controlled application it
must be set up, verified and sealed in accordance with local weights and
measures regulations. It is the responsibility of the purchaser to ensure that
all pertinent legal requirements are met.
Weighing Instruments verified at the place of manufacture bear the following
supplementary metrology marking on the descriptive plate.
Weighing Instruments to be verified in two stages have no supplementary
metrology marking on the descriptive plate. The second stage of conformity
assessment must be carried out by the applicable weights and measures
authorities. If national regulations limit the validity period of the
verification, the user of the weighing instrument must strictly observe the
re-verification period and inform the weights and measures authorities. As
verification requirements vary by jurisdiction, the purchaser should contact
their local weights and measures office if they are not familiar with the
requirements.
ISED Canada Compliance Statement: This Class B digital apparatus complies with
Canadian ICES-003.
ISO 9001 Registration The management system governing the production of this
product is ISO 9001 certified.
EN-54
FCC Supplier Declaration of Conformity
Unintentional Radiator per 47CFR Part B Trade Name: OHAUS CORPORATION Model or
Family identification: PX/PXP/PJX/PR
Issuing Party that Assembled the Product: Ohaus Instruments (Changzhou) Co.,
Ltd. 2F, 22 Block, 538 West Hehai Road, Xinbei District, Changzhou Jiangsu
213022 China Phone: +86 519 85287270
Responsible Party U.S. Contact Information: Ohaus Corporation 7 Campus
Drive, Suite 310 Parsippany, NJ 07054 United States Phone: +1 973 377 9000
Web: www.ohaus.com
PX Series Balance
FCC Compliance Statement: Note: This equipment has been tested and found to
comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
–Reorient or relocate the receiving antenna.
–Increase the separation between the equipment and receiver.
–Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
–Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
PX Series Balance
EN-55
LIMITED WARRANTY
Ohaus products are warranted against defects in materials and workmanship from
the date of delivery through the duration of the warranty period. During the
warranty period Ohaus will repair, or, at its option, replace any component(s)
that proves to be defective at no charge, provided that the product is
returned, freight prepaid, to Ohaus.
This warranty does not apply if the product has been damaged by accident or
misuse, exposed to radioactive or corrosive materials, has foreign material
penetrating to the inside of the product, or as a result of service or
modification by other than Ohaus. In lieu of a properly returned warranty
registration card, the warranty period shall begin on the date of shipment to
the authorized dealer. No other express or implied warranty is given by Ohaus
Corporation. Ohaus Corporation shall not be liable for any consequential
damages.
As warranty legislation differs from state to state and country to country,
please contact Ohaus or your local Ohaus dealer for further details.
Balanza Serie PX
ES-1
Índice
1. INTRODUCCIÓN ………………………………………………………………………………………………………3
1.1 Descripción ……………………………………………………………………………………………………………………………….. 3 1.2
Funcionalidades…………………………………………………………………………………………………………………………. 3 1.3
Definición de las señales y símbolos de advertencia
………………………………………………………………………. 3 1.4 Precauciones de seguridad
…………………………………………………………………………………………………………. 3
2. INSTALACIÓN …………………………………………………………………………………………………………4
2.1 Desembalaje ……………………………………………………………………………………………………………………………… 4 2.2
Seleccionar la ubicación ……………………………………………………………………………………………………………… 4 2.3
Nivelación …………………………………………………………………………………………………………………………………. 4 2.4 Conexión
de la alimentación y aclimatación de la balanza ………………………………………………………………. 5
2.5 Conexión de la interfaz ……………………………………………………………………………………………………………….. 5 2.6
Calibración inicial ……………………………………………………………………………………………………………………….. 5
3. FUNCIONAMIENTO ………………………………………………………………………………………………….6
3.1 Descripción de la pantalla, pantalla de
inicio………………………………………………………………………………….. 6 3.2 Funciones principales y menú
principal………………………………………………………………………………………… 7 3.3 Descripción de piezas y
características, modelos con cámara de pesaje ………………………………………….. 7 3.4
Descripción de piezas y características, modelos sin cámara de pesaje
…………………………………………… 7
4. APLICACIONES……………………………………………………………………………………………………….8
4.1 Pesaje ………………………………………………………………………………………………………………………………………. 8 4.2 Recuento
de piezas ……………………………………………………………………………………………………………………. 9 4.3 Pesaje
porcentual …………………………………………………………………………………………………………………….. 11 4.4 Pesaje
dinámico……………………………………………………………………………………………………………………….. 12 4.5 Determinación
de densidad ……………………………………………………………………………………………………….. 13 4.5.1 Medición de la
densidad de un sólido sumergido utilizando agua ……………………………………………….. 14 4.5.2
Medición de la densidad de un sólido flotante utilizando agua
……………………………………………………. 16 4.5.3 Medición de la densidad de un sólido utilizando
un líquido auxiliar que no sea agua …………………….. 16 4.5.4 Medición de la
densidad de un líquido usando un plomo calibrado ……………………………………………… 17 4.5.5
Medición de la densidad de material poroso utilizando aceite
…………………………………………………….. 18 4.6 Formulación
…………………………………………………………………………………………………………………………….. 20 4.7 Características
adicionales ………………………………………………………………………………………………………… 22
5. CONFIGURACIÓN DEL MENÚ ……………………………………………………………………………….. 23
5.1 Menú de navegación…………………………………………………………………………………………………………………. 23 5.1.1
Cambiar la configuración ……………………………………………………………………………………………………….. 23 5.2
Calibration (Calibración) ……………………………………………………………………………………………………………. 24 5.2.1
Submenú de calibración (modelos InCal)…………………………………………………………………………………. 24
5.2.2 Calibración interna (no aplicable a modelos ExCal)
…………………………………………………………………… 24 5.2.3 Calibración automática PX85 PX125D PX225D
SOLAMENTE) ………………………………………………. 24 5.2.4 InCal Adjust (no aplicable a modelos
ExCal)…………………………………………………………………………….. 24 5.2.5 Span Calibration (Calibración
de span) ……………………………………………………………………………………. 25 5.2.6 Linearity Calibration
(Calibración de linealidad) ………………………………………………………………………… 26 5.3 Balance Setup
(Configuración de la balanza) ………………………………………………………………………………. 28 5.3.1
Contraseña…………………………………………………………………………………………………………………………… 28 5.3.2 Language
(idioma) ………………………………………………………………………………………………………………… 29 5.3.3 Filter Level
(nivel de filtrado)…………………………………………………………………………………………………… 29 5.3.4 AZT (cero
automático) …………………………………………………………………………………………………………… 29 5.3.5 Auto Tare (tara
automática) ……………………………………………………………………………………………………. 29 5.3.6 Graduations
(Divisiones)………………………………………………………………………………………………………… 29 5.3.7 Date Format
(formato de fecha)………………………………………………………………………………………………. 30 5.3.8 Date Setup
…………………………………………………………………………………………………………………………… 30 5.3.9 Time format (formato
de hora) ………………………………………………………………………………………………… 30 5.3.10 Time Setup
(configuración de hora)…………………………………………………………………………………………. 30 5.3.11
Brightness (brillo) ………………………………………………………………………………………………………………….. 30 5.3.12
Auto Dim (auto-oscurecer)……………………………………………………………………………………………………… 30 5.3.13
Auto OFF……………………………………………………………………………………………………………………………… 30 5.3.14 Capacity
Bar (barra de capacidad) ………………………………………………………………………………………….. 30 5.3.15
Approved Mode (modo aprobado) …………………………………………………………………………………………… 30 5.4
Weighing Units (unidades de pesaje) ………………………………………………………………………………………….. 31
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Balanza Serie PX
5.5 RS232 Interface Setup (configuración de la interfaz
RS232)………………………………………………………….. 34 5.5.1 Baud Rate (velocidad en Baudios)
………………………………………………………………………………………….. 34 5.5.2 Transmission
(transmisión)…………………………………………………………………………………………………….. 34 5.5.3 Handshake
…………………………………………………………………………………………………………………………… 34 5.6 Print Settings
(configuración de impresión) ………………………………………………………………………………….. 34 5.6.1 Stable
Only…………………………………………………………………………………………………………………………… 34 5.6.2 Numeric Only
(solo numérico) ………………………………………………………………………………………………… 34 5.6.3 Single Header
(encabezado sencillo) ………………………………………………………………………………………. 34 5.6.4 Print To
(imprimir a) ………………………………………………………………………………………………………………. 34 5.6.5 Formato de
salida …………………………………………………………………………………………………………………. 35 5.6.6 Impresión de
lotes…………………………………………………………………………………………………………………. 35 5.6.7 Impresión de
etiquetas…………………………………………………………………………………………………………… 35 5.6.8 Auto Print
(impresión automática)……………………………………………………………………………………………. 35 5.6.9 Header
(encabezado) ……………………………………………………………………………………………………………. 35 5.6.10 Date and
Time (fecha y hora) …………………………………………………………………………………………………. 35 5.6.11 Balance
ID (Id. de la balanza)…………………………………………………………………………………………………. 36 5.6.12 Balance
Name (nombre de la balanza) ……………………………………………………………………………………. 36 5.6.13 User
Name (nombre de usuario) …………………………………………………………………………………………….. 36 5.6.14
Project Name (nombre del proyecto)……………………………………………………………………………………….. 36
5.6.15 Application Name (nombre de la aplicación)
…………………………………………………………………………….. 36 5.6.16 Result
(resultado)………………………………………………………………………………………………………………….. 36 5.6.17 Gross
(bruto) ………………………………………………………………………………………………………………………… 36 5.6.18 Net (neto)
…………………………………………………………………………………………………………………………….. 36 5.6.19 Tare (tara)
……………………………………………………………………………………………………………………………. 36 5.6.20 Line Feed (avance
de línea) …………………………………………………………………………………………………… 36 5.6.21 Línea de firma
………………………………………………………………………………………………………………………. 36 5.7 GLP
………………………………………………………………………………………………………………………………………… 37 5.7.1 Header
(encabezado) ……………………………………………………………………………………………………………. 37 5.7.2 Balance Name
(nombre de la balanza) ……………………………………………………………………………………. 37 5.7.3 User Name
(nombre de usuario) …………………………………………………………………………………………….. 37 5.7.4 Project
Name (nombre del proyecto)……………………………………………………………………………………….. 37 5.8 Factory
reset (restablecer a fábrica)……………………………………………………………………………………………. 37 5.9
Lockout (bloqueo) …………………………………………………………………………………………………………………….. 37
6. LEGAL PARA COMERCIO (LFT) …………………………………………………………………………….. 38
6.1 Ajustes ……………………………………………………………………………………………………………………………………. 38 6.2
Verificación ……………………………………………………………………………………………………………………………… 38 6.3 Fijar el
menú ……………………………………………………………………………………………………………………………. 38 6.4 Sellar el acceso
a la configuración de la balanza………………………………………………………………………….. 38
7. Impresión………………………………………………………………………………………………………………39
7.1 Conectar, configurar y probar la impresora / interfaz del ordenador
………………………………………………… 39 7.2 Formato de salida
…………………………………………………………………………………………………………………….. 40 7.3 Ejemplos de
impresión………………………………………………………………………………………………………………. 40
8. MANTENIMIENTO…………………………………………………………………………………………………..43
8.1 Calibración ………………………………………………………………………………………………………………………………. 43 8.2
Limpieza………………………………………………………………………………………………………………………………….. 43 8.3 Solución de
problemas ……………………………………………………………………………………………………………… 43 8.4 Información de
servicio ……………………………………………………………………………………………………………… 44
9. DATOS TÉCNICOS…………………………………………………………………………………………………45
9.1 Especificaciones ………………………………………………………………………………………………………………………. 45 9.2
Esquemas y dimensiones ………………………………………………………………………………………………………….. 51 9.3
Accesorios ………………………………………………………………………………………………………………………………. 51 9.4
Comunicación ………………………………………………………………………………………………………………………….. 52 9.4.1
Comandos de la interfaz ………………………………………………………………………………………………………… 52 9.4.2
RS232 (DB9) Conexiones pin…………………………………………………………………………………………………. 53 9.4.3
Interfaz USB…………………………………………………………………………………………………………………………. 53 9.4.4 Conexión
USB………………………………………………………………………………………………………………………. 53
10. ACTUALIZACIONES DE SOFTWARE ……………………………………………………………………. 54
11. CONFORMIDAD……………………………………………………………………………………………………55
Balanza Serie PX
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1. INTRODUCCIÓN
1.1 Descripción
La Balanza PX es una balanza de precisión que le proporcionará años de
servicio si se cuida correctamente. Las Balanzas PX están disponibles en
capacidades desde 82 gramos a 8200 gramos.
1.2 Funcionalidades
Comandos de operación: pantalla retroiluminada de 2 líneas, con 6 aplicaciones
y varias funciones de pesaje.
1.3 Definición de las señales y símbolos de advertencia
Los consejos de seguridad están marcados con palabras y símbolos de
advertencia. Estos muestran advertencias y problemas de seguridad. Hacer caso
omiso de las indicaciones de seguridad puede llevar a lesiones personales,
daños al dispositivo, fallos de funcionamiento y resultados falsos.
ADVERTENCIA PRECAUCIÓN
Atención Nota
Situaciones peligrosas con riesgo medio, que pueden provocar la muerte o lesiones graves si no se evitan. Situaciones peligrosas con riesgo bajo, que pueden provocar daños en el dispositivo o a la propiedad, perdida de datos, o lesiones graves si no se evitan. Información importante sobre el producto. Información útil sobre el producto.
Símbolos de advertencia
Peligro general
Peligro descarga eléctrica
Corriente alterna
Corriente continua
1.4 Precauciones de seguridad
PRECAUCIÓN: lea todas las advertencias de seguridad antes de instalar, hacer
conexiones o realizar el mantenimiento de este equipo. El incumplimiento de
las instrucciones podría resultar en lesiones personales y/o daños materiales.
Conserve todas las instrucciones para futura referencia. z Compruebe que el
rango de voltaje de entrada del adaptador de CA y el tipo de enchufe son
compatibles
con la red eléctrica de corriente alterna local.
z Asegúrese de que el cable de alimentación no represente un posible obstáculo
o riesgo de tropezarse. z No coloque la balanza de tal manera que sea difícil
llegar a la conexión eléctrica. z Utilice la balanza solo en interiores. no
utilice la unidad en entornos peligrosos o en lugares inestables. z Opere la
unidad solamente bajo las condiciones ambientales especificadas en estas
instrucciones. z No deje caer cargas sobre el plato. z Utilice la balanza solo
en lugares secos. z Desconecte el equipo de la fuente de alimentación durante
su limpieza. z Utilice accesorios y periféricos aprobados. z Cualquier
reparación y servicio debe ser realizado solo por personal autorizado.
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Balanza Serie PX
2. INSTALACIÓN
2.1 Desembalaje Extraiga con cuidado la balanza PX y cada uno de sus
componentes del paquete. Los componentes incluidos varían dependiendo del
modelo de balanza (consulte la lista a continuación). Conserve el embalaje
para asegurar un almacenamiento y transporte seguro. Lea el manual antes de
instalar y utilizar la balanza PX para evitar un manejo incorrecto.
Componentes incluidos:
x Balanza
x Adaptador de corriente + enchufe
x Plato de acero inoxidable
x Soporte para el plato (para los modelos 0.1 g / 0.01 g)
x Tarjeta de garantía
2.2 Seleccionar la ubicación
Evite fuentes de calor, cambios rápidos de temperatura, corrientes de aire o
vibraciones excesivas. Deje espacio suficiente.
2.3 Nivelación Asegúrese de que la balanza está nivelada antes de su uso o
después de cambiar su ubicación. La balanza PX tiene un nivel de burbuja en
una pequeña ventana redonda junto a la pantalla. Para nivelar la balanza,
ajuste los 4 pies de nivelación hasta que la burbuja esté centrada en el
círculo. Consulte la Figura 2-1 para ajustar la nivelación.
Figura 2-1. Nivelación
Balanza Serie PX
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2.4 Conexión de la alimentación y aclimatación de la balanza
Conecte el conector de salida de CC a la toma de corriente en la parte
posterior de la balanza. A continuación, conecte el enchufe del adaptador de
CA a una toma de corriente adecuada.
Aclimatación
Se recomienda no utilizar la balanza hasta que la unidad esté conectada y se
haya aclimatado al entorno durante un determinado período de tiempo. En el
caso de balanzas con precisión por encima de 0,1 mg, el tiempo de aclimatación
debe ser de 1,5 horas; en el caso de balanzas con una precisión de 0,01 mg, el
tiempo de aclimatación debe ser de un mínimo de 4 horas.
2.5 Conexión de la interfaz
La balanza PX cuenta con dos interfaces de datos, RS232 y USB. Utilice el
puerto RS-232 para conectar con un ordenador o una impresora mediante un cable
serie estándar (directo). Utilice el puerto USB para conectar a un ordenador
mediante un cable USB 2.0 de tipo A a tipo B.
Conexiones de interfaz en la parte posterior de la balanza
USB
RS232
USB: utilizado para conectar solo a ordenador
RS232: utilizado para conectar a ordenador o impresora
Nota: consulte la sección «Impresión» para la Conexión, Configuración y Prueba de la impresora / interfaz del ordenador.
2.6 Calibración inicial
Al instalar la balanza PX por primera vez, o cuando se cambia de lugar, debe
calibrarse para asegurar resultados de pesaje exactos. Las balanzas PX se
clasifican en dos categorías, modelos InCal y modelos ExCal. Los modelos InCal
tienen un mecanismo de calibración integrado que puede calibrar la balanza de
forma automática y no requiere el uso de pesos de calibración externos. Si se
prefiere, los modelos InCal también se pueden calibrar manualmente con pesos
externos. Los modelos ExCal se calibran con pesos externos. Asegúrese de tener
disponible los pesos de calibración apropiados antes de comenzar la
calibración.
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3. FUNCIONAMIENTO
3.1 Descripción de la pantalla, pantalla de inicio La balanza PX cuenta con
una pantalla retroiluminada de 2 líneas. CONTROLES
Balanza Serie PX
FUNCIONES DE CONTROL
Botón
On / Zero
Función x Si el indicador está
primaria
en Off (apagado),
(Pulsación
se enciende el
rápida)
indicador.
Print x Envía el valor
mostrado a la interfaz serial.
Function
Tare
x La operación
x Realiza la
depende del modo
operación de
de aplicación.
tara.
x Si el indicador está
en On (activado), se
ajusta en cero.
Off
Unit
Mode
Menu-Cal
Función x Ajusta a cero el
x Cambia las
x Cambia el modo x Entra en el
secundaria
valor actual.
unidades de
de aplicación.
menú principal.
(Pulsar y
pesaje.
La calibración
mantener)
es el primer
submenú.
x Muestra el valor
de tara
predeterminado.
Yes
No
Back
Exit
Función de x Acepta la
x Rechaza la
x Vuelve a la opción x Sale
menú
configuración actual
configuración
de menú anterior.
inmediatamente
(Pulsación
(intermitente) en la
actual
x Disminuye un valor
del submenú.
rápida)
pantalla.
(intermitente) en la
introducido.
x Aborta una
pantalla.
calibración en
x Incrementa un
curso.
valor introducido.
Balanza Serie PX
PANTALLA DE LA APLICACIÓN PRINCIPAL
Neto (NETO) Estabilidad (*)
Negativo (-) Centro de cero (>0<)
Pre-tara (PT)
Mensajes de instrucción
ES-7
Campo de resultados: la información varía según la aplicación Unidad
3.2 Funciones principales y menú principal
Pesaje:
Tarar:
Cero: Pantalla de matriz de puntos:
Pulse el botón Zero para ajustar la pantalla a cero. Coloque un objeto en el
plato. La pantalla indica el peso bruto.
Sin carga en el plato, pulse Zero para ajustar la pantalla a cero. Coloque un
recipiente vacío en el plato y pulse Tare. Añada objetos al recipiente para
ver su peso neto. Una vez retirados el recipiente y los objetos, la carga se
mostrará como un número negativo. Pulse Tare para borrar.
Pulse Zero para ajustar la balanza a cero.
Los datos relevantes en el modo de aplicación específica se muestran en la
pantalla de matriz de puntos.
3.3 Descripción de piezas y características, modelos con cámara de pesaje
Plato Indicador de nivel
Pie ajustable
Pie ajustable
Dispositivo USB
Interruptor de seguridad
RS232
Entrada de alimentación
3.4 Descripción de piezas y características, modelos sin cámara de pesaje
Plato
Pie ajustable
Pie ajustable
Dispositivo Interruptor de
USB
seguridad
RS232 Entrada de alimentación
ES-8
Balanza Serie PX
4. APLICACIONES
La balanza PX puede funcionar en 6 modos de aplicación con una pulsación larga
del botón Function / Mode.
4.1 Pesaje Nota: antes de utilizar cualquier aplicación, asegúrese de que la
balanza está nivelada y calibrada.
Utilice esta aplicación para determinar el peso de los objetos en la unidad de
medida seleccionada.
Pesaje 1. Pulse Tare o Zero si es necesario para comenzar.
2. Pulse y mantenga pulsado el botón Function / Mode para seleccionar
Weighing (esta es la aplicación predeterminada).
3. Coloque objetos sobre el plato para mostrar su peso. Cuando la lectura sea
estable, aparecerá el símbolo *.
4. El valor resultante se visualiza en la unidad de medida actual.
Configuración del elemento Para ver o ajustar la configuración actual.
· Barra de capacidad: cuando está activada, la barra de capacidad se visualiza
en el campo de referencia. No se mostrará la capacidad cuando la balanza esté
ajustada a cero.
· Unidades de pesaje: cambia la unidad indicada. Vea la Sección 5.4 para
obtener más información. · Nivel de filtrado: cambia el nivel de filtrado. Vea
la Sección 5.3.4 para obtener más
información. · Datos GLP: vea la Sección 5.7 para obtener más información. ·
Configuración de impresión: cambia la configuración de impresión. Vea la
Sección 7 para
obtener más información.
Pesaje de lotes Para activar el pesaje de lotes:
1. Mantenga pulsado el botón Menú-Cal hasta que aparezca Calibration.
2. Pulse el botón No varias veces hasta que aparezca Print.
3. Pulse el botón Yes.
4. Pulse brevemente el botón No varias veces hasta que aparezca Batch
Printing.
5. Pulse el botón Yes.
6. Pulse brevemente el botón No para seleccionar On.
7. Pulse el botón Yes.
Balanza Serie PX
Para comenzar el pesaje por lotes: 1. Vuelva a entrar en el modo de Weighing.
Coloque la primera muestra en la bandeja y pulse el botón Function / Mode para
almacenar el primer peso. 2. Aparecerá el mensaje “Place sample 2”. 3. Retire
la primera muestra, añada la segunda muestra a la bandeja y pulse el botón
Function / Mode para almacenar el segundo peso. 4. Continúe añadiendo
componentes y pulse el botón Function / Mode para almacenar los pesos.
Para finalizar el pesaje por lotes e imprimir el resultado: Pulse el botón
Print para finalizar el pesaje del lote e imprimir el resultado. Nota: se
puede pesar un total de 10 lotes de muestras. Cuando se alcancen los 10,
aparecerá el mensaje “End” si se vuelve a pulsar el botón Function / Mode. Si
se sigue pulsando el botón, aparecerá el mensaje “Out of range”.
ES-9
4.2 Recuento de piezas Nota: antes de utilizar cualquier aplicación, asegúrese
de que la balanza está nivelada y calibrada. El peso mínimo de la pieza no
debe ser inferior a 0,1 d. En el modo LFT, el peso mínimo de la pieza es 3e,
el tamaño mínimo de la muestra es 10. Utilice esta aplicación para contar las
muestras de peso uniforme.
Recuento de piezas 1. Pulse Tare o Zero si es necesario para comenzar. 2.
Pulse y mantenga pulsado el botón Function / Mode hasta que Parts Counting
aparezca en la pantalla.
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3. Después de confirmarlo pulsando Yes, aparecerá en la pantalla el mensaje
«Clear APW?» (¿borrar APW?).
4. Si es necesario mantener el APW de la última operación de recuento de
piezas, pulse No cuando aparezca en la pantalla el mensaje «Clear APW?».
5. Pulse Yes, y aparecerá el mensaje «Sample size 10» con el numeral «10»
(predeterminado) parpadeando.
6. Para confirmar el tamaño de la muestra pulse Yes, y coloque 10 muestras en
el plato para visualizar el peso. Pulse No o Back para aumentar o disminuir el
valor como desee.
7. Pulse el botón Function / Mode de modo que el peso de las 10 muestras se
utiliza para establecer el peso medio de las piezas (APW). La pantalla
mostrará 10 piezas.
8. Para ver el peso de la pieza o el peso total, pulse el botón Function /
Mode.
9. Coloque objetos adicionales en el plato, y se mostrará el correspondiente
número de piezas.
Configuración del elemento Muestra: el tamaño de muestra varía de 1 a 1000. El
valor predeterminado es 10. Nota: para garantizar un recuento preciso, el peso
mínimo de la pieza no debe ser inferior a 0,1 d.
Balanza Serie PX
Balanza Serie PX
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Optimización del APW: Mejorar la exactitud del recuento recalculando el peso
de la pieza de forma automática a medida que se añaden más piezas.
La optimización del APW se produce solo cuando el número de piezas añadidas al
plato es entre una y tres veces el número de las que ya están en él.
Configuración de impresión: Cambiar la configuración de impresión. Vea la Sección 7 para obtener más información.
4.3 Pesaje porcentual
Nota: antes de utilizar cualquier aplicación, asegúrese de que la balanza está
nivelada y calibrada. Utilice pesaje porcentual para mostrar el peso de un
objeto de prueba como porcentaje de una muestra de referencia preestablecida.
Se muestra el peso predeterminado (o último) de referencia.
Pesaje porcentual 1. Mantenga pulsado el botón Function / Mode hasta que aparezca en pantalla el mensaje Percent Weighing.
2. Después de confirmarlo pulsando Yes,
aparecerá en la pantalla el mensaje «Clear reference?» (¿borrar referencia?).
3. Pulse Yes y, a continuación verá el mensaje «Place sample» (colocar
muestra).
4. Coloque la muestra de referencia en el plato para mostrar su peso. Cuando
la lectura sea estable, aparecerá el símbolo *.
5. Pulse el botón Function / Mode para guardar en la memoria el peso de la
muestra de referencia. La pantalla mostrará: 100 %.
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6. Retire la muestra de referencia, y coloque el objeto de prueba en el
plato. La relación del objeto de prueba al peso de la muestra de referencia se
muestra como un porcentaje.
7. Para ver el peso de la muestra de referencia o el peso del objeto de
prueba, pulse el botón Function / Mode.
Balanza Serie PX
Configuración del elemento Nota: Si es necesario mantener el peso de la
muestra de referencia establecido anteriormente, pulse No cuando aparezca en
la pantalla el mensaje «Clear reference?».
Configuración de impresión: Cambiar la configuración de impresión. Vea la
Sección 7 para obtener más información.
4.4 Pesaje dinámico
Nota: antes de utilizar cualquier aplicación, asegúrese de que la balanza está
nivelada y calibrada. Retire todo lo que pueda haber en el plato antes de
empezar un nuevo ciclo de pesaje dinámico. Utilice esta aplicación para pesar
una carga inestable, tal como un animal en movimiento.
Pesaje dinámico 1. Mantenga pulsado el botón Function / Mode hasta que
aparezca en pantalla el mensaje Dynamic Weighing. 2. Después de confirmarlo
pulsando Yes, aparecerá en la pantalla el mensaje «Change parameter?»
(¿cambiar parámetro?).
3. Pulse Yes, y aparecerá en pantalla el mensaje «Average time 10 s» (tiempo medio 10 s) con el numeral «10» parpadeando. Pulse No o Back para aumentar o disminuir el valor como desee.
Balanza Serie PX
4. Confirme el tiempo de pesaje pulsando Yes. El mensaje «Ready» (listo)
aparecerá en la parte inferior izquierda de la pantalla.
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5. Coloque el objeto dinámico en el plato. La balanza inicia una cuenta atrás
(proceso de promedio). Durante la cuenta atrás, la pantalla muestra el tiempo
restante.
6. Cuando termina la cuenta atrás, la línea de resultado aparece y se
mantiene.
7. Después de retirar el objeto dinámico, el peso se ajusta automáticamente a
cero, y la balanza volverá al estado «Ready».
Configuración del elemento 1. Tiempo medio: ajuste el tiempo medio a un valor
entre 1 y 15 segundos. El ajuste por defecto es
10 segundos. 2. Configuración de impresión: cambiar la configuración de
impresión. Vea la Sección 7 para
obtener más información.
4.5 Determinación de densidad Nota: antes de utilizar cualquier aplicación,
asegúrese de que la balanza está nivelada y calibrada. Utilice esta aplicación
para determinar la densidad de un objeto.
El Kit de determinación de densidad, número de pieza 80253384, está diseñado
para ser utilizado con la balanza de la serie PX. Las ilustraciones de este
procedimiento se refieren al kit de densidad, sin embargo, es posible utilizar
cualquier instrumento de laboratorio que se ajuste a los requisitos para las
mediciones de densidad. Con el software de la balanza se incluye una tabla de
densidades de referencia para el agua a temperaturas entre 10 ºC y 30.9 ºC.
Repase la sección completa antes de realizar mediciones de densidad.
Método de funcionamiento Mantenga pulsado el botón Function / Mode hasta que
«Density» aparezca en pantalla. Después de confirmarlo pulsando Yes, aparecerá
en la pantalla el mensaje «Change parameter?» (¿cambiar parámetro?). Puede
mantener o cambiar la configuración como desee.
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Balanza Serie PX
Configuración del elemento: x Tipo de muestra: sólido, líquido x Líquido auxiliar: agua, alcohol, otro x Material poroso: Off, On x Temperatura del agua: 20 °C (por defecto) x Temperatura del alcohol: 20 °C (por defecto) x Volumen (de plomo calibrado): 10 ml por defecto x Peso (de material poroso): 5,000 g x Densidad del aceite: 0.80000 g/cm3 x Resultado: para seleccionar la resolución de visualización del resultado de pesaje de la Densidad. – Modelo de balanza de 0,01 mg: 0,1g/cm3, 0,01g/cm3, 0,001g/cm3, 0,0001g/cm3, 0,00001g/cm3 – Modelo de balanza de 0,1 mg: 0,1g/cm3, 0,01g/cm3, 0,001g/cm3, 0,0001g/cm3 – Modelo de balanza de 1 mg: 0,1g/cm3, 0,01g/cm3, 0,001g/cm3 – Modelo de balanza de 0,01 g: 0,1g/cm3, 0,01g/cm3 – Modelo de balanza de 0,1 g: 0,1g/cm3
Pueden realizarse cuatro tipos de determinación de la densidad: 1. Sólido más denso que el líquido auxiliar 2. Sólido menos denso que el líquido auxiliar 3. Densidad del líquido 4. Material poroso (impregnado con aceite)
Los siguientes son los procedimientos operativos para la determinación de densidad de un material sólido, líquido y poroso con agua como líquido auxiliar. Otros líquidos auxiliares son también aplicables para la determinación de la densidad.
4.5.1 Medición de la densidad de un sólido sumergido utilizando agua
Pulse y mantenga pulsado el botón Function / Mode hasta que aparezca «Density»
en la pantalla. Pulse Yes para iniciar la Density Determination (determinación
de densidad).
Balanza Serie PX
Configuración del elemento: x Tipo de muestra: sólido x Líquido auxiliar: agua
x Material poroso: Off x Temperatura del agua: mida la temperatura actual del
agua usando un termómetro de precisión.
La temperatura del agua es de 20 °C por defecto. Pulse No o Back para aumentar
o disminuir el valor de la temperatura. La balanza calcula la densidad del
agua basándose en el valor de la temperatura del agua.
1. Pese la muestra en aire utilizando la balanza y el kit de determinación de
densidad. Cuando aparezca el símbolo * (símbolo de estabilidad), pulse el
botón Function / Mode para confirmar el peso de la muestra en aire.
2. Pese la muestra sumergida en el líquido, utilizando la balanza y el kit de
determinación de densidad. Nota: introduzca la muestra en el líquido hasta que
esté completamente sumergida.
3. Pulse el botón Function / Mode para obtener la densidad de la muestra. Una
vez finalizada la prueba, pulse el botón Function / Mode para realizar el
análisis de una nueva muestra.
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4.5.2 Medición de la densidad de un sólido flotante utilizando agua
1. Mantenga pulsado el botón Function / Mode hasta que Density aparezca en la
pantalla. Pulse Yes para seleccionar Density Determination (determinación de
densidad).
Balanza Serie PX
2. Al determinar la densidad con la balanza, la configuración de la balanza y los proced
References
- Lab Balance | Industrial Scales | Lab Equipment | Lab Instruments | OHAUS
- CE Declarations | OHAUS
- UK Declarations | OHAUS
- dmx.ohaus.com/WorkArea/DownloadAsset.aspx?id=28916