1. Rhagymadrodd
This manual provides essential instructions for the proper setup, operation, maintenance, and troubleshooting of your U.S. Solid 500g x 0.001g Lab Analytical Balance. Designed for high-precision weighing, this balance offers reliable results with 0.001g (1mg) accuracy and a maximum capacity of 500g. It features multiple unit conversions, parts counting, percentage weighing, and manual calibration capabilities.
Please read this manual thoroughly before using the balance to ensure accurate measurements and safe operation.
2. Rhagofalon Diogelwch
- Always operate the balance on a stable, level, and vibration-free surface.
- Avoid placing the balance near strong electromagnetic fields, direct sunlight, or rapid temperature changes.
- Peidiwch â gorlwytho'r cydbwysedd y tu hwnt i'w gapasiti uchaf o 500g.
- Keep the balance and its components clean and free from dust and corrosive substances.
- Use only the provided power adapter or a compatible 9V battery.
- Do not attempt to disassemble or repair the balance yourself. Contact qualified service personnel if needed.
3. Beth sydd yn y Bocs
Carefully unpack all components and check against the following list:
- Scale Body x1
- Scale Pan x1
- Cord pwer x1
- Calibration Weight x1
- Llawlyfr Cyfarwyddiadau x1
4. Cynnyrch Drosview
Familiarize yourself with the main components of your analytical balance.





5. Gosod
5.1 Dadbacio ac Archwiliad Cychwynnol
Carefully remove the balance from its packaging. Inspect all components for any signs of damage. If any damage is found, do not use the balance and contact customer support immediately.
5.2 Lleoliad
Place the balance on a firm, level, and stable surface. Ensure the location is free from vibrations, drafts, direct sunlight, and rapid temperature fluctuations, which can affect measurement accuracy.
5.3 Lefelu'r Cydbwysedd
The balance must be perfectly level for accurate readings. Use the adjustable feet at the bottom of the balance to center the bubble in the integrated level indicator (refer to Figure 4.4).

5.4 Cysylltiad Pwer
Connect the provided power cord to the balance and a suitable power outlet (100-240V). Alternatively, the balance can be powered by a 9V battery for portable use.
5.5 Warm-up Time
After connecting power, allow the balance to warm up for at least 30 minutes before taking measurements. This stabilizes the internal components and ensures optimal accuracy.
6. Cyfarwyddiadau Gweithredu
6.1 Pŵer Ymlaen/Diffodd
- Gwasgwch y YMLAEN / I FFWRDD button to turn the balance on.
- Pwyswch a dal y YMLAEN / I FFWRDD button to turn the balance off.
6.2 Pwyso Sylfaenol
To perform a basic weight measurement:
- Ensure the balance is level and has completed its warm-up.
- Gwasgwch y TARE / ZERO botwm i osod yr arddangosfa i 0.000g.
- Carefully place the item to be weighed on the center of the weighing pan.
- Arhoswch i'r darlleniad sefydlogi. Bydd y pwysau sefydlog yn cael ei arddangos.
Fideo 6.1: Demonstration of basic weighing, unit conversion, and percentage function on the U.S. Solid Lab Analytical Balance.
6.3 Swyddogaeth Tare
The tare function allows you to subtract the weight of a container, so only the net weight of the contents is measured.
- Rhowch gynhwysydd gwag ar y badell bwyso.
- Gwasgwch y TARE / ZERO botwm. Bydd yr arddangosfa yn ailosod i 0.000g.
- Add the material to be weighed into the container. The display will show the net weight of the material.
6.4 Trosi Uned
The balance supports multiple weighing units. To change the unit:
- Gwasgwch y UNED button repeatedly to cycle through available units: g (grams), ct (carats), oz (ounces), ozt (troy ounces), lb (pounds), gn (grains), t (metric tons), dwt (pennyweights), kg (kilograms), dr (drams), tlT (Taiwan Tael), N (Newtons), and % (percentaga).
- The selected unit will be displayed on the screen.

6.5 Parts Counting (PCS)
This function allows you to count a large number of identical items by weight.
- Place a known quantity of items (e.g., 10, 20, 50, 100, 150, 200, 250, 500) on the pan.
- Gwasgwch y PCS botwm.
- Select the corresponding sample quantity using the UNED botwm.
- Gwasgwch PCS again to confirm. The balance is now in counting mode.
- Add more items, and the display will show the total count.
6.6 Canrantage Pwyso
Y percentage function is useful for formulation and quality control, allowing you to measure a sample's weight as a percentage o bwysau cyfeirio.
- Rhowch y cyfeirnod sample ar y badell bwyso.
- Gwasgwch y UNED button until '%' is displayed. The reference weight will be set as 100%.
- Tynnwch y cyfeirnod sample.
- Place subsequent samples on the pan. Their weight will be displayed as a percentage o'r pwysau cyfeirio.
6.7 Graddnodi
Regular calibration ensures the accuracy of your balance. It is recommended to calibrate the balance upon initial setup, after relocation, or if you suspect inaccurate readings.
- Ensure the weighing pan is empty and the balance is stable.
- Pwyswch a dal y CAL button until 'CAL' appears on the display.
- The display will then show the required calibration weight (e.g., 500.000g).
- Carefully place the specified calibration weight (provided) onto the center of the weighing pan.
- Wait for the balance to automatically calibrate. Once complete, the display will show 'PASS' or return to normal weighing mode.
- Remove the calibration weight.

7. cynnal
7.1 Glanhau
To maintain accuracy and prolong the life of your balance:
- Datgysylltwch y pŵer bob amser cyn glanhau.
- Wipe the exterior of the balance with a soft, damp lliain. Defnyddiwch lanedydd ysgafn os oes angen.
- Do not use abrasive cleaners, solvents, or immerse the balance in water.
- Clean the stainless steel weighing pan and the windshield regularly to prevent accumulation of dust or residues.
7.2 Storio
When not in use, store the balance in a clean, dry environment, away from extreme temperatures and humidity. Keep the windshield in place to protect the weighing mechanism.
8. Datrys Problemau
This section addresses common issues you might encounter with your analytical balance.
| Problem | Achos Posibl | Ateb |
|---|---|---|
| Darlleniadau anghywir neu amrywiol |
|
|
| Display shows 'Err' or other error codes | Internal fault or overload condition. |
|
| Balance does not power on |
|
|
| Cannot detect small weight changes (e.g., 10-15mg) |
|
|
9. manylebau
Technical specifications for the U.S. Solid 500g x 0.001g Lab Analytical Balance.
| Nodwedd | Manylyn |
|---|---|
| Brand | Unol Daleithiau solet |
| Rhif Model | USS-DBS64-500 |
| Terfyn Pwysau | 500 gram |
| Cywirdeb Darllen Allan | 0.001 Grams (1mg) |
| Math Arddangos | LCD (Goleuadau ôl) |
| Pwyso Graddfa Math | Graddfa Balans |
| Unedau Mesur | g, ct, oz, ozt, lb, gn, t, dwt, kg, dr, tlT, N, % |
| Cyflenwad Pŵer | AC (100-240V) / DC (9V Battery) |
| Math o Ddeunydd | Acrylonitrile Butadiene Styrene (ABS), Stainless Steel |
| Pwysau Eitem | 3.64 Bunt |
| Cydrannau wedi'u Cynnwys | Scale Body, Scale Pan, Power Cord, Calibration Weight, Manual |
10. Gwarant a Chefnogaeth
U.S. Solid products are manufactured to high-quality standards. For information regarding product warranty, please refer to the warranty card included with your purchase or visit the official U.S. Solid websafle.
For technical support, troubleshooting assistance, or to inquire about replacement parts, please contact U.S. Solid customer service. Contact details can typically be found on the product packaging or the official brand websafle.