U.S. Solid USS-DBS81 User manual

Instruction Manual
USS-DBS81 Analytical Balance

Table of Contents
Introduction...............................................................................................1
1.1 Safety Precautions.......................................................................1
Design and Function............................................................................... 3
2.1 Components..................................................................................3
2.2 Keyboard........................................................................................4
2.3 Display Panel................................................................................ 5
Unpacking................................................................................................. 6
Before Using.............................................................................................7
4.1 Leveling the balance....................................................................7
4.2 Calibration......................................................................................8
Operation................................................................................................... 9
5.1 Basic Weighing............................................................................. 9
5.2 Unit Switching............................................................................. 10
5.3 Counting.......................................................................................10
Setting.......................................................................................................12
6.1 Minimum weighing..................................................................... 12
Technical Data........................................................................................13

1
Introduction
Thank you for choosing the U.S. Solid USS-DBS81 Series Analytical
Balance.
The USS-DBS81 Analytical Balance is precise and reliable. It offers a high
level of operating convenience and response sensitivity to facilitate
determination of the weight of your samples. In addition, USS-DBS81
Analytical Balance provides dual (one front and one rear) display screens,
which can be used not only for various scenarios that ordinary
single-screen balances can used, but also for special use scenarios that
single-screen ordinary balances can not meet.
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-DBS81 Analytical Balance.
1.1 Safety Precautions
The U.S. Solid USS-DBS81 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

2
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
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.
•Do not weigh items larger than the balance's range, as this may
damage the load cell of the balance.

3
Design and Function
2.1 Components
1: Upper Handle
2: Upper Glass
3: Housing Ⅰ
4: Vertical Strut
5: Rear Glass
6: Side Glass
7: Side Handle
8: Weighing Pan
9: Glass
10: Tray
11: Housing Ⅱ
12:Housing Ⅲ
13: Housing Ⅳ
14: Leveling foot
15: Dust Cover
16: Battery Cover

4
2.2 Keyboard
Key
Description
Turn the power on or off
Enter the counting function
Long press with “TARE”to enter the minimum weight setting
Tare the balance
Long press with “SET”to enter the minimum weight setting
Performs weight calibration
Switch the weighing units

5
2.3 Display Panel
USS-DBS81 Analytical Balance provides dual display screens, one front
and one rear.
No.
Description
1
“+”: Indicates positive values
“-”: Indicates negative values
“○”: Stabilization indicator (Disappearance indicates
stabilization of balance)
2
Weight value
3
Weight unit

6
Unpacking
The USS-DBS81 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-DBS81 Analytical Balance:
·1 Balance Main Body
·1 Weighing Pan
·1 Draft Shield
·1 Power Cable
·1 Calibration Weight
·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.

7
Before Using
·Adjust the leveling feet of the analytical balance until the air bubble in
the indicator is centered.
·Warm up for 30 to 60 minutes after starting up to improve the stability
of weighing.
·Check the accuracy of the reading with the weight. If there is any
deviation, please follow the calibration method below to calibrate the
balance.
4.1 Leveling the balance
Accurate horizontal positioning necessary for repeatable measurements
and exact results. To compensate for small irregularities or tilts at this
location, the instrument needs to be leveled.
Adjust the leveling feet of the analytical balance until the air bubble in
the indicator is centered. The level indicator is located under the cover
towards the rear of the analytical balance.

8
4.2 Calibration
Calibration is a necessary step to assure the analytical balance will
accurately weigh the sample.
Perform calibration operations in the following situations:
•Changes in the location of use (including moving in the same room).
•Changes in ambient conditions.
•Prior to each use.
1. Zero the balance in the weighing state;
2. Press the “CAL”button and “--CAL--”will be displayed;
3. After that “200.000”(or “100.000”) will be flashing displayed, then
place the calibration weight on the pan ;
4. “------”will be displayed, then “200.000”(or “100.000”) will be
displayed again;
5. Remove the calibration weight and “------”will again displayed.
6. The calibration is completed and it will return to the weighing
interface.