OHAUS PX12001E Pioneer Precision Balance Instruction Manual

: June 2, 2024
: Ohaus

Table of Contents

OHAUS PX12001E Pioneer Precision Balance
Specifications
Product Usage Instructions
Frequently Asked Questions
INTRODUCTION
INSTALLATION
OPERATION
APPLICATIONS
MENU SETTINGS
LEGAL FOR TRADE
Printing
MAINTENANCE
TECHNICAL DATA
SOFTWARE UPDATES
LIMITED WARRANTY
Read User Manual Online (PDF format)
Download This Manual (PDF format)

OHAUS PX12001E Pioneer Precision Balance

OHAUS-PX12001E-Pioneer-Precision-Balance-image

Specifications

Product Name: Pioneer PX Series Balances
Model: PX Series
Capacities: Available in capacities ranging from 82 grams to 8200 grams
Display: 2-line backlit display
Weighing Applications: 6 applications

Product Usage Instructions

1. Installation

Follow the installation instructions provided in the manual. Ensure the balance is placed on a stable and flat surface to guarantee accurate readings.

2. Operation

Power on the balance and wait for it to stabilize. Place the item to be weighed on the weighing platform and wait for the reading to stabilize. Use the operation controls to navigate through different features and functions.

3. Applications

The balance can be used for various applications including measuring ingredients in the kitchen, weighing jewelry, or conducting scientific experiments. Refer to the manual for specific details on each application.

4. Maintenance

Regularly clean the weighing platform and surrounding areas to ensure accurate readings. Avoid exposing the balance to extreme temperatures or moisture.

5. Menu Settings

Explore the menu settings to customize the balance according to your preferences. Adjust settings such as unit of measurement, display brightness, and calibration options.

Frequently Asked Questions

Q: How do I calibrate the Pioneer PX Series Balance?
- A: Calibration instructions can be found in the user manual. Typically, calibration involves using predefined weights to ensure accurate readings.
Q: Can the Pioneer PX Series Balance be connected to a computer?
- A: Yes, the balance can be connected to a computer for data transfer and analysis. Refer to the manual for instructions on setting up the printer/computer interface.

Test Equipment Depot – 800.517.8431 – TestEquipmentDepot.com
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

REVISION HISTORY

Date

Version

May 6, 2023

L

Sep. 12, 2023

M

Description
· Added Formulation in 7.3 Printout Examples · Added new models in 9.1 Specifications: PX12001 · Updated 9.2 Drawings and Dimensions · Updated US and China company address

PX Series Balance

INTRODUCTION

1.1 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.
Verify that the AC adapter’s input voltage range and plug type are compatible with the local AC main power
supply.
Make sure that the power cord does not pose a potential obstacle or tripping hazard. Do not position the balance such that it is difficult to reach the power connection. The balance is for indoor use only. Do not operate the equipment in hazardous or unstable environments. Operate the equipment only under ambient conditions specified in these instructions. Do not drop loads on the pan. Use the balance only in dry locations. Disconnect the equipment from the power supply when cleaning. Use only approved accessories and peripherals. Service should only be performed by authorized personnel.

EN-4

PX Series Balance

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: · Balance · Power adapter + Attaching plug · Stainless steel pan · Pan support (for 0.1 g / 0.01 g model only) · 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

EN-5

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.

EN-6

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
· If the Indicator is Off, turns on the Indicator.
· If Indicator is On, sets zero.

Off

Secondary

Function · Zeroing current

(Press and

value.

Hold)

Print

Function

· Sends the current · Operation is

displayed value to

dependent on the

the serial interface.

application mode.

Unit

Mode

· Changes weighing · Changes

units.

application mode.

Menu Function
(Short Press)

Yes

No

Back

· Accepts the current (blinking) setting on the display.

· Rejects the current · (blinking) setting on the display.
· Increments a value · being entered.

Reverts back to previous menu item.
Decrements a value being entered.

Tare
· Performs tare operation.
Menu-Cal
· Enters the main menu. Calibration is the first submenu.
· Views the preset Tare value. Exit
· Immediately exits the submenu.
· Aborts a calibration in progress.

PX Series Balance MAIN APPLICATION SCREEN

EN-7

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

USB Device Security Switch RS232 Power Input

3.4 Overview of Parts and Features Non-Draft Shield Models

Pan

Adjustable Foot

USB Security Switch RS232 Power Input Device

EN-8

PX Series Balance

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.

EN-9

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.

EN-10
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

EN-11

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%.

EN-12
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.

EN-13

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:
· Sample Type: Solid, Liquid · Auxiliary Liquid: Water, Alcohol, Other · Porous Material: Off, On · Water Temperature: 20 (by default) · Alcohol Temperature: 20 (by default) · Volume (of Calibrated Sinker): 10 ml (by default) · Weight (of Porous Material): 5.000 g

EN-14

PX Series Balance

· Oil Density: 0.80000 g / cm3 · 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: · Sample type: Solid · Auxiliary Liquid: Water · Porous Material: Off · 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.

EN-15

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

EN-16

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: · Sample type: Solid · Auxiliary Liquid: Other · 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.

EN-17

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.

PX Series Balance

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.
Item Settings: · Sample type: Solid · Auxiliary Liquid: Water · Porous Material: On

PX Series Balance
Set the following parameters by pressing No or Back: · Water Temperature · Weight · 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.

EN-19

EN-20

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).

EN-21

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

EN-22

PX Series Balance

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

EN-23

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.

EN-25

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:
Calibration Menu: Auto Calibration, InCal Adjustment, Span Calibration and Linearity Calibration are locked at the current settings.

PX Series Balance

EN-27

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.

Units Menu: All settings are locked.

Print Menu: All settings are locked.
GLP Menu: All settings are locked.
Factory Reset Menu: All settings are locked.
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: · For InCal models, only Internal Calibration is available. All other functions are hidden.

Balance Setup Menu: · Filter Level is locked at the current setting. · Auto Zero Tracking is limited to 0.5 Division and Off. The selected setting is locked. · Auto Tare is locked at current setting. · Graduations are forced to 1 Division and the menu item is hidden.

Communication Menu (Communication->Print Settings->Print Output): · Stable Weight Only is locked On. · Numeric Value Only is locked Off.

Communication Menu (Communication->Print Settings->Auto Print): · Auto print mode selections are limited to Off, On Stability, and Interval. Continuous is not available.

Lockout Menu: · 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 data bits, no parity, stop bit 1 7-NO-2 = 7 data bits, no parity, stop bit 2 7-ODD-1 = 7 data bits, odd parity, stop bit 1 7-ODD-2 = 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

LEGAL FOR TRADE

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

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

1 3 0

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: ____

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: ____

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: ____

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: ____

EN-39

FORMULATION

Header 1

Header 2

Header 3

Header 4

Header 5

12/19/2022 17:56:23

Balance ID: B234567890

Balance Name: PX224

User Name:

Project Name:

Formulation

Com. Total: 81.8953 g

Total weight: 81.8953 g

Gross: 81.8921 g G

Net:

81.7746 g N

Tare:

0.1175 g T

—–Sample Data (g)—–Item1: 0.1173 g Item2: 81.7780 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

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
Cannot change menu settings

Possible Cause

Remedy

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.
The pan is not installed 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.
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

TECHNICAL DATA

9.1 Specifications
Ambient conditions · Indoor use only · Altitude: Up to 2000 m · Specified Temperature range: 10°C to 30°C · Humidity: maximum relative humidity 80% for temperatures up to 30°C, decreasing linearly to 50% relative
humidity at 40°C · Operability is assured at ambient temperatures between 5°C and 40°C · Mains supply voltage fluctuations: up to ±10% of the nominal voltage · Installation category II · Pollution degree: 2 · Supply voltage: 12V0.5A

Materials · Bottom Housing: Die-cast Aluminum, Painted · Top Housing: Plastic (HIPS) · Weighing Platforms: Stainless steel · Draft Shield: Glass, plastic (HIPS) · 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

/

0.1

0.01

0.08

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

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 ±2
20 mg

± 0.06 ± 0.2
3 ±2
160 mg

8.2 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

80 100, 200 0, 100, 200

90 50, 80 0, 40, 80

90 50, 100 0, 50, 100

90 100, 200 0, 100, 200

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

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

PX163

PX223

PX323

PX423

PX523

PX623

PX822

PX1602

PX2202

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/E 160 0.001
0.0008
0.001
±0.0006 ±0.002
2 ±3
1.6 g
0.82g

PX223/E 220 0.001
0.0008
0.001
±0.0006 ±0.002
2 ±3
1.6 g
0.82g

PX323/E 320 0.001
0.0008
0.001
±0.0006 ±0.002
2 ±3
1.6 g
0.82g

PX423/E 420 0.001
0.0008
0.001
±0.0006 ±0.002
2 ±3
1.6 g
0.82g

PX523/E 520 0.001
0.0008
0.001
±0.0006 ±0.002
2 ±3
1.6 g
0.82g

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/E 820 0.01
0.008

PX1602/E 1600 0.01
0.008

PX2202/E 2200 0.01
0.008

0.01

±0.006 ±0.02
1
±3

16 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)

120

180

Span Calibration Points (g)
Linearity Calibration Points (g)

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

PX3202 PX4202

ExCal Model

PX3202/E PX4202/E

Capacity (g)

3200

4200

Readability d (g)

0.01

Repeatability (sd.), 5% of Full Load (g)

0.008 0.008

Repeatability (sd.), 5%

of Full Load to Full

0.01

Range (g)

Linearity Deviation, Typical (g)

±0.006 ±0.006

Linearity Deviation (g) ±0.02 ±0.02

Stabilization Time Typical (s)

1

Sensitivity Temperature Drift (PPM/K)

±3

Typical Minimum

Weight USP

16 g

(USP K=2,U=0.10%)

Optimized Minimum –

Weight (g) (USP, u=0.10%, k=2)

8.2g

SRP0.41d*

PX5202 PX5202/E
5200 0.01 0.008
0.01
±0.006 ±0.02
1 ±3
16 g
8.2g

PX6202 PX6202/E
6200 0.01 0.008
0.01
±0.006 ±0.02
1 ±3
16 g
8.2g

PX2201 PX2201/E
2200 0.1 0.08
0.1
±0.06 ±0.2
1 ±5
160 g
82g

PX4201 PX4201/E
4200 0.1 0.08
0.1
±0.06 ±0.2
1 ±5
160 g
82g

PX6201/E 6200 0.1 0.08
0.1
±0.06 ±0.2
1 ±5
160 g
82g

PX8201/E 8200 0.1

PX12001 PX12001/E
12000 0.1

0.08

0.1

±0.06 ±0.2
1
±5

160 g

82g

Units

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 (mm)
Span Calibration Points (g)
Linearity Calibration Points (g) Tare Range

Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density Determination, Formulation

Ø180
2000, 3000
0, 1500, 3000

Ø180
2000, 4000
0, 2000, 4000

Ø180

3000, 5000 5000, 6000 1000, 2000 2000, 4000 5000, 6000

0, 2500, 0, 3000, 0, 1000, 0, 2000, 0, 3000,

5000

6000

2000

4000

6000

Ø180
5000, 8000
0, 4000, 8000

193 x 248 3kg, 5kg, 7kg, 9kg, 11kg, 12kg 0, 6000,
12000

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) Communication Operating Temperature Range Storage Temperature Range
Storage Conditions
Net Weight Shipping Weight Shipping Dimensions (W x D x H) (mm)

209 x 321 x 98 RS232, USB

209 x 321 x101

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)

PX125DM** 52/120

PX225DM PX85M PX124M PX224M

82/220

82

120

220

PX323M 320

PX523M PX623M

520

620

Readability d, Fine Range (g)

0.00001

0.00001 0.00001

/

Readability d, Full Range (g)

0.0001

0.00001 0.0001 0.0001

0.001

Verification Interval e (g)

0.001

0.001 0.001 0.001

0.01

Class

I

II

Repeatability (sd.) , 5% of Full Load (g)
Repeatability (sd.), 5% of Full Load to Fine Range Max (g)

0.00001 0.00002

0.00001 0.00008 0.00008

0.00002

/

0.0008 /

Repeatability (sd. ) , Fine Range Max to Full Range (g)

0.0001

0.00002 0.0001 0.0001

0.001

Linearity Deviation, Typical (g)

± 0.00006

± 0.0006

± 0.0006 ± 0.0006

Linearity Deviation (g)

± 0.0001

± 0.0001 ± 0.0001 ± 0.0002 ± 0.0002 ± 0.002 ± 0.002 ± 0.002

Stabilization Time Typical (s)

10

3

2

Sensitivity temperature drift (PPM/K)

±2

±3

Typical Minimum Weight USP (USP K=2,U=0.10%)

20 mg

20 mg 160 mg 160 mg

1.6 g

Optimized Minimum -Weight (g) (USP, u=0.10%, k=2) SRP 0.41d*

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)

80

90

120

Span Calibration Points (g)

50, 100

100, 200

50, 80

50, 100

100, 200

200, 300

300, 500

300, 500, 600

Linearity Calibration Points (g)

0, 50, 100

0. 100, 200

0, 40, 80 0, 50, 100 0, 100, 200 0, 150, 300 0, 250, 500

0, 300, 600

Tare Range Power Supply

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)

209 x 321 x 309

Communication

RS232, USB

Operating Temperature Range Storage Temperature Range

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

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)

PX3202M 3200 0.01

PX5202M 5200 0.01

PX6202M 6200 0.01

PX4201M 4200 0.1

Verification Interval e (g) Class

0.1

II

Repeatability (sd.) , 5% of Full Load (g)

0.008

0.08

Repeatability (sd.), 5% of Full Load to Full Range (g)

0.01

0.1

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*

± 0.006 ± 0.02
1 ±3
16 g
8.2 g

± 0.06 ± 0.2
1 ±5
160 g
82 g

Units Applications Platform Size (diameter, mm) Span Calibration Points (g) Linearity Calibration Points (g) Tare Range
Power Supply

g, kg , ct

Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density Determination

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

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).

Storage Temperature Range
Storage Conditions Net Weight Shipping Weight Shipping Dimensions (W x D x H) (mm) Note:

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

Figure 9-3 12 kg x 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

EN-50

DESCRIPTION Dust Cover In-use Cover Printer SF40A Power Adapter for Balance

PX Series Balance
PART NUMBER 30093334 30372546 30064202 (EU); 30064203 (AM) 46001724

9.4 Communication
9.4.1 Interface Commands
Commands listed in the following table will be acknowledged by the 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 · PC running Windows 98®, Windows 98SE®, Windows ME®, Windows 2000®, Windows XP®, Windows 7® or Windows 8® (32-bit) or Windows 10®. · 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.

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. Building C, No. 6 Zhengqiang Road, Xuejia Town, Xinbei District, Changzhou Jiangsu 213022 China Phone: +86 519 85287270
Responsible Party U.S. Contact Information: Ohaus Corporation 8 Campus Drive, Suite 105 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.