U S Solid USS-DBS Analytical Balance Instruction Manual

U S Solid USS-DBS Analytical Balance

Troubleshooting Guide

send to Technical Services for repair.
Unstable Display| Poor working condi- tions| Seek somewhere with less vibration and/or airflow
Wind or drafts af- fecting readings| Check to make sure draft shield is closed tightly
Scale pan unsteady| Remove the pan and clean the sur- face of the balance well, making sure there are no linger- ing items
Power exceeds per- missible value| Connect balance to power supply 110-220 V AC
Displayed mass is not the same as true mass| Balance has not been calibrated| Double check calibration, internal and/or external
Receptacle not be- ing considered| Make sure the re- ceptacle has been tared out
Uneven surface| Make sure balance is on a flat, even surface

Getting Started

Thank you for choosing U.S. Solid’s Analytical Balance. We hope you enjoy your pur-chase. Please maintain the equipment according to all instructions within the manual.
This product was developed according to CE marking regulations while emphasizing aesthetics and safety for the user. It has ISO certification, specifically ISO 9001 The high quality of the product, coupled with proper user care, should allow you to enjoy the product for years.
Improper use of this equipment can cause accidents, including but not limited to: electric discharges, circuit breaker malfunctions, fire, etc. Please read the mainte-nance section, where this is explained more fully.
FOR BEST RESULTS AND LONGEVITY IN PRODUCT EFFICACY, READ THROUGH THIS MANUAL THOROUGHLY BEFORE USING THE PRODUCT

Please bear in mind the following:

• This manual should be kept with the analytical balance, so it is available to all users
• Be careful when handling the balance. Avoid any sudden movements when in its vicinity. Be sure to not drop the balance, nor drop any heavy/sharp objects on it. Keep liquids away from the balance to avoid spills.
• Never take apart the balance to try and fix yourself. This could ruin the entire balance, and voids the product warranty. There is also risk of injury when disassembling the balance.
• To prevent fire and electrical issues, avoid dusty or overly dry environments. In case of electrical issue or fire, unplug the balance immediately.
• During setup, installation, and use, contact your wholesaler with any questions that arise.
• This equipment is protected under the Warranties and Consumer Good Regulation (10/2003)
• Overhaul is not covered by the equipment warranty
• Changes made to the product by non-certified individuals will result in a loss of the product warranty
• Accessories, including their loss, are not covered by the product warranty, nor does the warrant cover piece’s deterioration over the course of time.
• Keep your invoice, either for having the right to a warranty, or for asking for warranty coverage. Manufacturer reserves the right to modify or improve the manual or equipment.

ALWAYS MAKE SURE YOU CALIBRATE YOUR SCALE BEFORE USING, AND NEVER TOUCH THE INCLUDED WEIGHT WITH YOUR SKIN!

FEATURES

• Electromagnetic force compensation technology
•  Aluminum alloy die cast base and main structure
• Stainless steel pan
• Backlit LCD display
• Glass draftshield with sliding doors
• Height-adjustable feet
• RS232
• Full capacity taring
• Underhook weighing capability
• Overload protection
• Four different units of measure: g, mg, ct, oz
• Piece counting function

Maintenance and Cleaning

To get the best results and for product longevity, be sure to follow the suggestions below.
Note: All of the suggestions and guidelines mentioned below and through-out this manual will only be effective with continuous and careful mainte-nance of the equipment

• Follow all processes outlined in the manual
• Make the manual available to all users of the equipment
• Prevent the balance from any sudden movements or falls, as well as from direct sunlight or air flow. The balance is a precision instrument and must be handled carefully.
• Balance must be plugged into a grounded electrical outlet and the socket should be easily accessible to unplug in case of emergency
• Never unplug the balance by pulling on the wire, do so from the base
• Never use the balance in a wedged-in location, such as a shelf
• Never use other objects such as pens, pencils, etc. to press the but-tons on the control panel; use only your fingers.
• Never place anything on the pan heavier than the maximum capaci- ty of the balance, or the sensor could be damaged
• Do not submerge the balance, nor spill any liquids on it
• When the balance will be unused for a long period of time, lock the rechargeable battery
• If any liquid does come into contact with the electrical parts of the balance, immediately disconnect it and send it in for service to be checked and adjusted if necessary
• Always use only original components and supplies. Other devices and parts may appear similar, but can damage the equipment.

Cleaning

• Never use scourers or substances that can grate to clean metallic parts. This include, but is not limited to, stainless steel, aluminum, coat-ings, etc.. These can damage the balance and lead to early erosion of effectiveness of the balance.
• Use a lint-free cloth, dampened with soapy water, that does not con-tain any abrasive surfaces, nor corrosive materials

Baud Rate Settings
The Baud Rate settings are as follows:

• F-1200
• F-2400
• F-4800
• F-9600
• Each of these numbers represents the corresponding Baud Rate

To change the baud rate on the balance:

1.  Press and hold the ON button
2.  Release when ‘SET F’ is displayed
3.  Press and hold the MENU button until the desired rate is displayed
4.  Press the TARE button to return to weighing

RS232 Interface

• The default Baud Rate is 1200 bps
• The data format is: 10 bits; 0 as start bit, 1 as stop bit, 8 digits (ASCII code)
• No odd and even numbers adjustments
• Data output is in continous mode by default

Data output format:

Specifications

Technical Parameters:

Analytical balances offer fast and accurate mea-surements of mass, using a high precision electro-magnetic force balance sensor.

MODEL: USS-DBS56…|

1

|

1.2

|

1.6

|

2

|

2.1

|

2.2

|

3

|

3.1

|

3.2

---|---|---|---|---|---|---|---|---|---
Max Capacity in grams|

100

|

120

|

160

|

200

|

210

|

220

|

300

|

310

|

320

Accuracy Class| I
Min. Capacity| 10 mg
Division| 0.0001g
Verification Scale Value| 0.001
Repeatability| ±0.0002 g
Stabilization time| ≤ 8 Seconds
Operating Temperature| 17.5° C- 22.5° C, with fluctuations of <1°C/Hour
63.5° F- 72.5° F with fluctuations of <1.8° F/ Hour
Relative Humidity| 50%-75%
Pan Size| 80 mm
Draft Shield| 190x180x220 mm
Total Dimensions| 350x210x310 mm
Net Weight| 5.5 kg
Power| AC110V-220V 50Hz/DC9V-2.2A

Panel Description

DISPLAY AND PANEL DESCIPTIONS

1.  MENU: Toggles through different options
2.  OFF: Switch off
3.  TARE: Tare
4.  ON: Switch on
5.  CAL: Calibration
6. ‘+’ or ‘-’ : Shows whether measurement is above or below 0

Internal settings

Sensitivity Settings
The sensititivy settings are as follows:

• ASD-0 Maximum Sensitivity (Use in ideal conditions)
• ASD-1 High Sensitivity
• ASD-2 Common Sensitivity
• ASD-3 Low Sensitivity (Use in poor conditions)

To change the sensitivity on the balance:

1.  Press and hold the ON button
2. . Release when ‘SET A’ is displayed
3.  Press and hold the MENU button until the desired sensitivity is displayed
4.  Press the TARE button to return to weighing

Weighing Speed Settings
The weight settings are as follows:

• INT-0 Fastest
• INT-1
• INT-2
• INT-3 Slowest

To change the weight speed on the balance:

1.  Press and hold the ON button
2.  Release when ‘SET 1’ is displayed
3.  Press and hold the MENU button until the desired speed is displayed
4.  Press the TARE button to return to weighing

Tare function

1. Put the receptacle on the weighing pan; its weight will be displayed
   Press TARE key and the reading on the display will automatically be set to 0.000g or 0.0000g; tare is complete
   If the receptacle is removed from the pan, the corresponding weight, with negative value will be displayed.
   Press the TARE key again and the value on display will be set to zero again

Weighing unit selection

Press MENU key to select the desired weighing unit from mg (UNT-0), g (UNT-1), ct (UNT-2), and oz (UNT-3).
Note: The default weighing unit is grams (UNT-1).

Piece counting function

1. Press and hold the ON key until ‘Set-0’ is displayed.
2.  Press MENU key to select the reference number of pieces (COU-10, COU-25, COU-50).
3.  Put the corresponding number of pieces on the pan, press and hold CAL button until the number of pieces is displayed.
4.  Remove the pieces from the pan and the balance is ready to be used in piece counting mode (weighing unit will change from g to pcs)

Note : In counting mode, the weight of the pieces must be even and the weight of an individual piece should not be less than the readability of the balance

To return to weighing mode:

1.  Press and hold the ON key until ‘Set-0’ is displayed
2.  Press MENU key to select COU-00
3.  Press TAR key and the balance will enter weighing mode

General Structure

STRUCTURE

Installation

Choosing the installation location
When analytical balances are used in routine lab or industrial measurement environments, the weighing speed will be much quicker, and the results more accurate. The location should meet the following conditions:

1.  Work room should be clean and dry
2.  Balance should be placed on a solid, stable, plain flat surface
3.  Avoid locations in which the balance could be exposed to any of the following:
4. a. Airflow from air conditioners, fans, doors, or windows
5. b. Vibrations from surrounding or nearby equipment
6. c. Direct sunlight or radiation
7. d. Electromagnetic waves or fields
8.  Do not use the balance anywhere exposed to explosive, combustible, or corrosive gases.
9.  Do not use the balance in areas with high humidity or high levels of dust
10. When moving from a cooler to a warmer place, the accuracy and reliability of the scale will be influenced by the moisture condensation inside the balance. In order to eliminate this influence, it is best to leave the scale unplugged in its new location for at least two hours before next use.
11.  Avoid extreme temperatures or exposure to direct sunlight or air conditioners. Ideal working temperatures are between 17.5 C and 22.5 C (63.5 and 72.5 F) with tempature fluctuations of less than 1 C (1.8 F) per hour.
12.  Keep the balance clean.
13.  Do not leave material on the balance when not in use.
14.  Always use the correct power supply and voltage with the balance; the balance is supplied with a power adapter 110-220 V/50-60 Hz.

Unpacking and inspection
Check that all of the items indicated below are included in the package
and that nothing has been damaged:

• Balance
• Pan
• Power Cable (AC Adapter)
• External Calibration weight
• In case the balance or any component is damaged during transport, tell your transportation agent immediately in order to process claims within the proper time frame.

Using the Balance

Level adjustment
Once the balance is placed at its location, check the bubble level; if bubble is not well-centered, turn the adjustable feet so the bubble moves to the center and the balance is properly leveled.

Start

1.  Connect the balance to the power supply and press ON key on the panel
2.  When the balance turns on, wait 30 minutes for the necessary warm up time for better performance and stability for the balance.
3.  Once warm up time has passed, it is recommended that the balance be calibrated.
4.  After calibration, the balance will enter weighing mode
5.  To turn the balance off, press the OFF key on the panel and the display will shut off. If the balance will be unused for an extended period of time, disconnect it from the power supply.

Standard Calibration

1. Press CAL key; the value of the necessary weight will flash on display
2. Put the calibration weight on the pan; to complete this step, open the glass door, put the weight on the pan and close the door again. Wait until the value of the calibration weight stops flashing and is fixed on the display (e.g. 100.0000 g, 200.0000g, etc., depending on the model)
3.  Remove the weight from the pan; for this, open the glass door, remove the weight from the pan, and close the door again
4.  The balance will enter weighing mode and will display .0000g

Linear Calibration

1. Plug in and wait for more than 30min to warm up the balance.
2. Press and hold down “ON”, when it shows”Set–C” on display,release”ON”, then quickly press “PRT” and “CAL” in turn and wait for 2 seconds, it will enter linearity calibration mode.
3.  It will shows “LIN–0” at first, then “LIN-200”, pls put on 200g F1 weight on the pan, when it was steady, remove the weight and it will shows “LIN—XXX”(XXX means the number, what number shows on, pls put the accordingly weight on the pan”
4.  Remove the weight from the pan; for this, open the glass door, remove the weight from the pan, and close the door again
5.  The balance will enter weighing mode and will display 0.0000g

References

• ussolid.com: Online Shopping for Motorized Ball Valves, Solenoid Valves, Cryogenic Containers, Analytical Balances, Lab Equipments, Medical Products & more

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