U.S. Solid 1mg Analytical Balance High Precision Digital Lab Scale

1. Introdución

This manual provides detailed instructions for the proper setup, operation, and maintenance of your U.S. Solid 1mg Analytical Balance. Designed for high precision measurements, this digital lab scale features two LCD screens, RS232 and USB interfaces, and a durable glass windshield. Please read this manual thoroughly before use to ensure accurate results and safe operation.

Figure 1: U.S. Solid 1mg Analytical Balance with its dual LCD screens and protective draft shield.

2. Contido do paquete

Verifique que todos os elementos estean presentes e sen danos ao desembalar:

• U.S. Solid 1mg Analytical Balance
• Stainless Steel Weighing Pan
• Glass Draft Shield (3 slide-doors)
• Calibration Weight (e.g., 500g for 300g model)
• Power Adapter (AC 100V-240V)
• Manual de usuario

Figure 2: Included components: analytical balance, user manual, calibration weight, and power adapter.

3. Configuración

Proper setup is crucial for accurate measurements.

1. Colocación: Place the balance on a stable, vibration-free surface, away from direct sunlight, air currents, and significant temperature changes.
2. Axuste horizontal: Use the adjustable leveling feet at the base of the scale to center the bubble in the built-in level indicator. This ensures the weighing pan is perfectly horizontal.
3. Montaxe: Carefully place the stainless steel weighing pan onto the center of the weighing platform. Ensure the glass draft shield is properly assembled around the weighing area.
4. Conexión de alimentación: Connect the power adapter to the balance and plug it into an AC 100V-240V power outlet. Alternatively, the scale can be powered by 4x1.5V batteries (not included) for portable use.
5. Tempo de quecemento: After powering on, allow the balance to warm up for at least 30 minutes before making critical measurements. This stabilizes the internal components for optimal accuracy.

Figure 3: Key setup considerations including leveling, environmental factors, and warm-up period.

4. Instrucións de funcionamento

4.1 Pesaxe básica

1. Preme o ON/OFF botón para acender a balanza.
2. Wait for the display to show 0.000g.
3. Place the item to be weighed on the center of the stainless steel pan.
4. Lea o peso estable que se mostra na pantalla LCD.

4.2 Función de tara

To subtract the weight of a container:

1. Coloque o recipiente baleiro no prato de pesaxe.
2. Preme o TARE/CAL button. The display will reset to 0.000g.
3. Engada a substancia que se vai pesar no recipiente. A pantalla mostrará o peso neto da substancia.

4.3 Conversión de unidades

The balance supports 19 measuring units. To change the unit:

• Preme o UNIDADE button repeatedly to cycle through available units (Gram, Kilogram, Carat, Tola, TAR, Dram, PKT, Grain, TMR, gsm, tlJ, mo, Penny weight, Ounce, Pound, Taiwan Tael, Troy-Ounce, Hong Kong Tael, and %).
• You can lock up to 16 different unit packages (e.g., g, t, ct, oz, lb) and hide uncommon units for efficiency. Refer to the full manual for detailed unit locking procedures.

Figure 4: Available measuring units for the analytical balance.

4.4 Piece Counting Function

To count multiple pieces of an item:

1. Preme o PCS button to enter piece counting mode.
2. Follow the on-screen prompts to set a sample quantity (e.g., 10, 20, 50, 100 pieces).
3. Place the corresponding number of sample pieces on the pan and confirm.
4. Elimina o sample pieces. When you place an unknown quantity of the same item, the display will show the count.

Figure 5: Piece counting function in operation.

4.5 Data Output (RS232 & USB)

The lab scale is equipped with RS232 and USB ports for connecting to a computer or printer. It supports three printing modes: continuous print, key print, and command print.

For detailed instructions on configuring continuous output or key output settings, please refer to the video demonstration below.

5. Calibración

Calibration ensures the accuracy of your balance. It is recommended to recalibrate after moving the balance or before critical use.

5.1 Calibración manual

Para realizar unha calibración manual:

1. Ensure the weighing pan is empty.
2. Manteña premido o TARE/CAL button until 'CAL' appears on the display.
3. The display will then show the required calibration weight (e.g., 500.000g).
4. Carefully place the specified calibration weight onto the center of the weighing pan.
5. Wait for the balance to stabilize and confirm the calibration. The display will return to 0.000g once complete.
6. Remove the calibration weight.

5.2 Standard and Linear Calibration

For detailed steps on performing standard and linear calibration, please refer to the video demonstration in Section 4.5.

6. Especificacións

7. Mantemento

To ensure the longevity and accuracy of your analytical balance:

• Keep the balance clean. Wipe surfaces with a soft, damp pano. Evite produtos de limpeza abrasivos ou solventes.
• Do not overload the balance beyond its maximum capacity.
• Store the balance in a dry, stable environment when not in use.
• Regularly check the leveling bubble and adjust if necessary.

8. Garantía e soporte

For warranty information, technical support, or service inquiries, please contact U.S. Solid customer service. Refer to the product packaging or the official U.S. Solid websitio para os detalles de contacto.