1. Inleiding
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. Veiligheidsmaatregelen
- 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.
- Overbelast de weegschaal niet boven zijn maximale capaciteit van 500 gram.
- 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. Wat zit er in de doos?
Carefully unpack all components and check against the following list:
- Scale Body x1
- Scale Pan x1
- Stroomkabel x1
- Calibration Weight x1
- Gebruiksaanwijzing x1
4. Product voorbijview
Familiarize yourself with the main components of your analytical balance.





5. Instellen
5.1 Uitpakken en eerste inspectie
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 Plaatsing
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 Leveling the Balance
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 Stroomaansluiting
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 Opwarmtijd
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. Gebruiksaanwijzing
6.1 In-/uitschakelen
- Druk op de AAN/UIT button to turn the balance on.
- Houd de AAN/UIT button to turn the balance off.
6.2 Basiswegen
To perform a basic weight measurement:
- Ensure the balance is level and has completed its warm-up.
- Druk op de TARRA/NUL button to set the display to 0.000g.
- Plaats het te wegen voorwerp voorzichtig in het midden van de weegschaal.
- Wacht tot de meting stabiel is. Het stabiele gewicht wordt weergegeven.
6.1 video: Demonstration of basic weighing, unit conversion, and percentage function on the U.S. Solid Lab Analytical Balance.
6.3 Tarrafunctie
The tare function allows you to subtract the weight of a container, so only the net weight of the contents is measured.
- Plaats een lege container op de weegpan.
- Druk op de TARRA/NUL button. The display will reset to 0.000g.
- Voeg het te wegen materiaal toe aan de container. Op het display wordt het nettogewicht van het materiaal weergegeven.
6.4 Eenheidsconversie
The balance supports multiple weighing units. To change the unit:
- Druk op de EENHEID 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 % (percentagen).
- Het geselecteerde apparaat wordt op het scherm weergegeven.

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.
- Druk op de STUKS knop.
- Select the corresponding sample quantity using the EENHEID knop.
- Pers STUKS again to confirm. The balance is now in counting mode.
- Add more items, and the display will show the total count.
6.6 procenttage Wegen
De procenttage function is useful for formulation and quality control, allowing you to measure a sample's weight as a percentage van een referentiegewicht.
- Plaats de referentie sample op de weegpan.
- Druk op de EENHEID button until '%' is displayed. The reference weight will be set as 100%.
- Verwijder de referentie sampik.
- Place subsequent samples on the pan. Their weight will be displayed as a percentage van het referentiegewicht.
6.7 Kalibratie
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.
- Houd de KAL 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.
- Verwijder het kalibratiegewicht.

7. Onderhoud
7.1 Reinigen
To maintain accuracy and prolong the life of your balance:
- Haal altijd de stekker uit het stopcontact voordat u het apparaat schoonmaakt.
- Wipe the exterior of the balance with a soft, damp lap. Gebruik indien nodig een mild reinigingsmiddel.
- 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 Opslag
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. Probleemoplossing
This section addresses common issues you might encounter with your analytical balance.
| Probleem | Mogelijke oorzaak | Oplossing |
|---|---|---|
| Onnauwkeurige of fluctuerende metingen |
|
|
| Display shows 'Err' or other error codes | Interne storing of overbelasting. |
|
| Balance does not power on |
|
|
| Cannot detect small weight changes (e.g., 10-15mg) |
|
|
9. Specificaties
Technical specifications for the U.S. Solid 500g x 0.001g Lab Analytical Balance.
| Functie | Detail |
|---|---|
| Merk | VS Vast |
| Modelnummer | USS-DBS64-500 |
| Gewichtslimiet | 500 gram |
| Uitleesnauwkeurigheid | 0.001 Grams (1mg) |
| Weergavetype | LCD (verlicht) |
| Weegschaaltype | Weegschaal |
| Meeteenheden | g, ct, oz, ozt, lb, gn, t, dwt, kg, dr, tlT, N, % |
| Stroomvoorziening | AC (100-240V) / DC (9V Battery) |
| Materiaalsoort | Acrylonitril-butadieen-styreen (ABS), roestvrij staal |
| Artikelgewicht | 3.64 pond |
| Meegeleverde componenten | Scale Body, Scale Pan, Power Cord, Calibration Weight, Manual |
10. Garantie en ondersteuning
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 webplaats.
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 webplaats.