

Introduction
The USS-DBS57 precision balance series offers high accuracy and reliability with a precision of 0.001g. Designed for ease of use and quick response, it ensures precise measurement of sample weights. This balance features a single display screen and an RS232 interface for essential weighing tasks.
This balance offers a high cost-performance ratio, excellent quality, and fast response. It's ideal for users who require accurate measurements without the need for dual displays or advanced connectivity options. For those who require these additional features, the USS-DBS58 is an excellent alternative.
Applications


Features
- Readability: 0.001g (1mg) with strain gauge load cell
- Capacity:20mg-100g
- Stabilization Time: ≤2 seconds
- External Calibration: Manual calibration with weights
- 19 Weighing Units Conversion: g, kg, ct, T, TAR, dr, PKT, GN, TMR, gsm, tlJ, mo, dwt, oz, lb, tlT, ozt, tlH, %.(In addition, 16 different unit packages are lockable, e.g., you can lock g,t,ct,oz,lb and hide other uncommon units.)
- RS232 Interface
- 3 Print Modes: Continuous print, key print and command print
- Both AC/ DC power supply: AC 100V-240V power or 4x1.5V battery(not included)
- Primary Functions: Qverload protection, checking weighing, piece counting function, percentage function, tare function, fault display
More Details


User Manual
To learn how to install, calibrate, set up, and use this product, please refer to the user manual.
Packing List
① | Balance Main Body | ② | Power Cable | ||
③ | Weighing Pan | ④ | Instruction Manual | ||
⑤ | Calibration Weight (50g) |
*To view the full table on mobile, please swipe left or right on the screen.
Technical Data
Model | USS-DBS57-1 | Working Temperature | 41℉ - 95℉ | ||
Weighing Sensor | Strain gauge load cell | Stabilization Time | ≤2s | ||
Calibration | External calibration | Calibration Weight | 50g*1 | ||
Capacity | 20mg-100g | Units | g, kg, ct, T, TAR, dr, PKT, GN, TMR, gsm, tlJ, mo, dwt, oz, lb, tlT, ozt, tlH, % | ||
Readability | 0.001g(1mg) | Interface | RS232 | ||
Repeatability | ±0.002g | Power | AC 100V-240V/4x1.5V battery(not included) | ||
Linearity | ±0.003g | Packaging Dimensions | 14.76"x10.04"x13.78" | ||
Pan Size | Φ90 mm | Gross Weight | 7.83 lbs | ||
Number of Displays | 1 | Windshield | Yes |
*To view the full table on mobile, please swipe left or right on the screen.
Precautions
- Leveling the Balance: Accurate horizontal positioning necessary for repeatable measurementsand exact results. Adjust the leveling feet of the analytical balance until the air bubbleinthe indicator is centered.
- Warm-Up Requirement: For accurate results, the balance must warm up for at least 30 minutes after being powered on or after a power outage longer than 30 minutes, to reach the proper operating temperature before calibration or use.(For warm-up time details, refer to the user manual or contact support.)
- Stability: Place the balance on a stable, vibration-free surface, away from drafts and electromagnetic interference. It's important to note that high-precision balances are more susceptible to environmental factors, which can affect reading stability.
- Calibration: Calibrate the balance if it is moved (even within the same room), when ambient conditions change, and before each use. If pressing the "CAL" button has no effect, ensure you are pressing and holding it. For most models, calibration requires a long press rather than a quick tap.(Refer to the manual for specific instructions).
Troubleshooting
Problem 1: Display remains off after switching on.
Possible causes: Power cord is not connected/ Power line fuse blown/ Power supply interrupted/ Instrument faulty
Problem 2: Display does not change when loading samples.
Possible causes: The sample pan/pan holder is not installed correctly.
Problem 3: Weight display is constantly changing or unstable.
Possible causes: The sample pan is in contact with the draft shield or heating chamber/ Air movement/ Test bench vibration/ Electromagnetic field interference
All Options
Readability | Capacity | Model | Display Qty | Interface | Calibration Weight | Calibration | Stabilization Time | Units | Power Supply | Linearity | Repeatability | Pan |
0.001g | 20mg-100g | USS-DBS57-1 | 1 | RS232 | 50g*1 | EXternal calibration | ≤2s | 19 types | AC/DC | ±0.003g | ±0.002g | Φ90mm |
USS-DBS58-1 | 2 | RS232 and USB | ||||||||||
20mg-200g | USS-DBS57-2 | 1 | RS232 | 100g*1 | ||||||||
USS-DBS58-2 | 2 | RS232 and USB | ||||||||||
20mg-300g | USS-DBS57-3 | 1 | RS232 | 200g*1 | ||||||||
USS-DBS58-3 | 2 | RS232 and USB | ||||||||||
20mg-500g | USS-DBS57-5 | 1 | RS232 | 500g*1 | ||||||||
USS-DBS58-5 | 2 | RS232 and USB | ||||||||||
* 19 Weighing Units Conversion: g, kg, ct, T, TAR, dr, PKT, GN, TMR, gsm, tlJ, mo, dwt, oz, lb, tlT, ozt, tlH, % |