U.S. Solid USS-DBS47 User manual

Instruction Manual
USS-DBS47/48 Analytical Balance

Table of Contents
1. Introduction................................................................................................................1
1.1 Safety Precautions.............................................................................................1
2. Design and Function...................................................................................................3
2.1 Components...................................................................................................... 3
2.2 Keyboard............................................................................................................5
2.3 Display panel..................................................................................................... 6
3. Installation..................................................................................................................7
3.1 Unpacking and delivery inspection................................................................... 7
3.2 Selecting the location........................................................................................ 8
3.3 Installing components....................................................................................... 9
3.4 Leveling the balance..........................................................................................9
3.5 Connecting the power.....................................................................................11
4. Settings..................................................................................................................... 12
4.1 Display speed...................................................................................................12
4.2 Stability............................................................................................................13
4.3 Restore factory defaults.................................................................................. 14
5. Calibration................................................................................................................ 16
5.1 Internal calibration.......................................................................................... 16
5.2 Automatic internal calibration........................................................................ 17
5.3 External calibration..........................................................................................18
6. Weighing and Applications.......................................................................................19
6.1 Weighing..........................................................................................................19
6.2 Unit of weight..................................................................................................20
6.3 Counting function............................................................................................21
6.4 Percent weighing............................................................................................. 23
7. Maintenance.............................................................................................................24
7.1 Precautions......................................................................................................24
7.2 Cleaning...........................................................................................................25
7.3 Disposal........................................................................................................... 25
8. Troubleshooting........................................................................................................26
8.1 Troubleshooting...............................................................................................26
8.2 Error code........................................................................................................ 27
9. Technical Data...........................................................................................................28

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1. Introduction
Thank you for choosing the U.S. Solid USS-DBS47/48 Electronic Analytical
Balance.
The U.S. Solid USS-DBS47/48 Electronic Analytical Balance is precise and
reliable. It provides a high level of operating convenience and response
sensitivity to facilitate determination of the weight of your samples. U.S.
Solid’s dedicated customer service staff are available to answer any
inquiries regarding applications and accessories.
Please read the manual completely and follow the usage instructions
before installation and operation as this will help you to make full use of
the functions and performance of the USS-DBS47/48 Analytical Balance.
1.1 Safety Precautions
The U.S. Solid USS-DBS47/48 Analytical Balance qualifies as
state-of-the-art technology and complies with all recognized safety rules.
Improper use or handling, however, can result in damage and/or injury.
Please follow the precautions below to ensure safe and trouble-free
operation of your balance.
•The balance has a 3-pin power socket equipped with a
ground terminal. To prevent electric shock and to maintain

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stability in operation of the balance, be sure to ground the balance.
•Avoid getting the balance wet as it is not water resistant. Any leakage
of liquid into the balance may damage the balance or cause an electric
shock to the user.
•Use a power source (voltage, frequency, outlet type)
adapted to the specification of the balance. If excessive
voltage is used, the balance may overheat and be damaged or cause a
fire.
•Operate the balance on a stable, rigid and flat table.
•Handle the balance carefully. It is a precision device,
subjecting it to impact may result in a malfunction.
•If the device is not be used for a long period of time, the power
should be turned off and disconnect the power cable.
•Do not disassemble, remodel or repair this product or accessories.

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2. Design and Function
2.1 Components
1: Weighing chamber
2: Weighing pan
3: Anti-draft ring
4: Display panel
5: Keyboard
6: Glass door
7: Handle of glass door
8: Balance main body
9: Leveling foot

4
1: RS-232 connector
2: Level bubble
3: Power inlet

5
2.2 Keyboard
Key
Description
Turn the power off
Output the displayed values to an electronic printer,
computer, or other external devices
Tare the balance
Select or set displayed item
Performs automatic internal calibration
Turn the power on
Enter menu item selection
Enter mode item selection

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2.3 Display panel
No.
Description
1
Weight value
2
Weight unit
3
Indicates positive values
4
Indicates negative values
5
Stabilization indicator
6
Display speed
7
Stability
8
Automatic calibration time mode

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3. Installation
3.1 Unpacking and delivery inspection
The USS-DBS47/48 Analytical Balance is a precision instrument. Unpack
the balance carefully and check the delivered items for completeness.
The following accessories are part of the standard equipment for your
new USS-DBS47/48 Analytical Balance:
·1 Balance Main Body
·1 Weighing Pan
·1 Draft Shield
·1 Power Cable
·1 Calibration Weight
·1 Glove
·1 Instruction Manual
·1 Quality Certification
Check the instrument for damage in transit. Immediately inform the
U.S. Solid customer service if you have any complaints or parts are
missing.

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3.2 Selecting the location
Measurement performance of your balance depends largely on the
surrounding environments.
Please follow these guidelines to make sure the proper environmental
conditions are met:
•Select a firm, horizontal location that is free from vibrations.
•Make sure that the ambient temperature is between 5°C and 30°C,
the relative humidity is around 50% and that non-condensing conditions
are met.
•Avoid direct sunlight and ensure that there are not any excessive
temperature fluctuations.
•Ensure the balance is places a sufficient distance from heat-sensitive
materials in the vicinity of the instrument.
•Avoid the effects of air currents from air conditioners, ventilators,
open doors, or windows.
•Keep away from objects or equipment that are magnetic or capable
of generating magnetic fields.
•Surroundings should be as free from dust as possible.