RUISHAN Lab Scale 1000gx0.01g User Manual

Introduction

The RUISHAN Lab Scale 1000gx0.01g is a high-precision analytical balance designed for accurate weighing in various professional and personal settings. Equipped with an upgraded high-sensitivity built-in sensor and a high-performance microcontroller, this scale provides quick and precise measurements. Its robust construction, featuring a stainless steel weighing pan, aluminum alloy base, and durable ABS body, ensures long-term reliability. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your new analytical balance.

Figure 1: Front view of the RUISHAN Lab Scale, showcasing its compact design and digital display.

Setup

Unpacking the Balance

Carefully remove all components from the packaging. Ensure all items listed below are present:

• Lab scale unit
• Stainless steel weighing plate
• Calibration weights (1*500g included)
• Power adapter

Figure 2: The RUISHAN Lab Scale as it appears in its protective packaging.

Placement and Leveling

Place the balance on a stable, level surface free from vibrations, drafts, and direct sunlight. Use the adjustable leveling feet at the bottom of the scale to ensure it is perfectly level. Refer to the built-in level bubble on the front panel for guidance.

Figure 3: Underside of the scale, highlighting the four adjustable red feet for precise leveling.

Initial Power On

Connect the power adapter to the balance and a suitable power outlet. Press the ON/OFF button to turn on the scale. Allow the scale to warm up for 3-15 minutes for optimal accuracy, especially in environments with temperature fluctuations. The display should show "0.00g" once stable.

Operating Instructions

Basic Weighing

1. Ensure the scale is powered on and displays "0.00g".
2. Place the item to be weighed gently on the center of the stainless steel weighing pan.
3. Read the stable weight displayed on the LCD screen.
4. To tare (zero out the weight of a container), place the empty container on the pan and press the TARE/Menu button. The display will return to "0.00g", allowing you to weigh only the contents.

Figure 4: Detailed view of the control panel, showing the ON/OFF, Print/Cal, Unit/Pcs, and Tare/Menu buttons.

Unit Conversion

The balance supports multiple weighing units. To switch between units (grams (g), ounces (oz), carats (ct), pounds (lb), GSM, KG, etc.), short press the Unit/Pcs button.

Counting Function

To use the counting function:

1. Long press the Unit/Pcs button until the display shows a counting sample size (e.g., 10, 20, 50, 100).
2. Place the corresponding number of samples (e.g., 10 pieces) on the pan.
3. Short press Unit/Pcs again to confirm the sample size. The scale is now calibrated for counting.
4. Add or remove items, and the display will show the number of pieces.
5. To exit counting mode, short press Unit/Pcs.

Data Output (RS232)

The balance is equipped with an RS232 serial port for connecting to a printer or computer to output weighing data. A data cable is not included and must be purchased separately.

Figure 5: Rear view of the scale, highlighting the RS232 serial port and the power adapter interface.

Calibration

Regular calibration ensures the accuracy of your balance. A 500g calibration weight is included with your scale.

1. Ensure the scale is placed stably and level.
2. Press and hold the Print/Cal button until the display shows "CAL".
3. The display will then show a twinkling weight value (e.g., "500.00g"). Place the corresponding calibration weight (e.g., 500g) onto the center of the weighing pan. The balance will automatically recognize and calibrate the current weight.
4. Wait approximately 3 seconds until the number stops flashing. Remove the calibration weight. The scale should display "0.00" (for 0.01g scale) or "0.0" (for 0.1g scale), indicating successful calibration. If the balance does not reset to zero, repeat the operation.

Figure 6: Visual guide for the calibration steps of the analytical balance.

Maintenance

Cleaning

To maintain accuracy and prolong the life of your balance:

• Wipe the stainless steel weighing pan and the ABS body with a soft, damp cloth.
• Do not use abrasive cleaners or solvents, as they may damage the surface or internal components.
• Ensure no liquids enter the internal parts of the scale.

Storage

When not in use, store the balance in a dry, stable environment away from extreme temperatures, humidity, and direct sunlight. Keep the weighing pan clean and free of debris.

Troubleshooting

This section addresses common issues you might encounter with your RUISHAN Lab Scale.

Specifications

Warranty and Support

RUISHAN stands behind the quality of its instruments. This product comes with a 1-year warranty from the date of purchase. For any questions, technical assistance, or warranty claims, please refer to the contact information provided in your product packaging or visit the official RUISHAN website. Detailed user instructions are also available for further reference.