Introduction
Thank you for choosing the UNIWEIGH Precision Milligram Scale. This digital scale is designed for highly accurate measurements up to 0.001g, with a maximum capacity of 50g. It is suitable for various applications including weighing jewelry, powders, coins, gold, gemstones, and for laboratory or industrial use. Please read this manual carefully to ensure proper operation and maintenance of your scale.
Image: The UNIWEIGH Precision Scale is versatile, suitable for measuring items in laboratories, coins, jewelry, food ingredients, and coffee beans.
Safety Information
- Operate the scale on a stable, level surface free from vibrations.
- Avoid exposing the scale to extreme temperatures, humidity, or direct sunlight.
- Do not overload the scale beyond its maximum capacity of 50g to prevent damage.
- Keep the scale away from strong electromagnetic fields.
- Clean the scale with a soft, damp cloth. Do not use abrasive cleaners or immerse the scale in water.
- Store the scale in its protective case when not in use to prevent dust and damage.
Package Contents
- UNIWEIGH Precision Milligram Scale (Model: UNI-P-50)
- Calibration Weight (50g)
- Weighing Pan/Tray
- Tweezers
- USB Cable
- AAA Batteries (2 included)
- User Manual
Product Overview
The UNIWEIGH Precision Milligram Scale features a protective flip case, magnetic design, and an easy-to-read LCD display. Its robust construction includes rubber-coated protection and thickened ABS material for enhanced durability.
Image: Key features of the scale include a protective flip case, magnetic closure, easy-to-clean surface, clear LCD display, and user-friendly controls.
Image: The scale's design incorporates double protection with a rubber-coated exterior, thickened ABS material, and an upgraded magnetic lid for durability.
Setup
- Unpack all components from the packaging.
- Open the battery compartment located on the underside of the scale.
- Insert the two AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment.
- Place the scale on a firm, flat, and stable surface.
- Ensure there are no objects on the weighing pan before turning on the scale.
Operating Instructions
Power On/Off
- Press the ON/OFF button to turn the scale on. The display will show "88888" and then "0.000g".
- Press and hold the ON/OFF button to turn the scale off.
Unit Conversion
- With the scale on, press the MODE button to cycle through the available weighing units: grams (g), ounces (oz), troy ounces (ozt), pennyweights (dwt), carats (ct), and grains (gn).
Image: The scale supports multiple units including grams, ounces, troy ounces, pennyweights, carats, and grains.
Tare Function
The tare function allows you to subtract the weight of a container, so you only measure the net weight of the contents.
- Place an empty container on the weighing pan.
- Press the TARE button. The display will reset to "0.000g".
- Add the items you wish to weigh into the container. The display will show the net weight of the items.
Image: Step-by-step guide for using the tare function: 1. Turn on scale. 2. Place container and press TARE. 3. Add item to get net weight.
Calibration
Regular calibration ensures the accuracy of your scale. Use the provided 50g calibration weight.
- Turn the scale on. Ensure the display shows "0.000g".
- Press and hold the MODE key until the display shows "CAL".
- Release the MODE key. The display will then flash "50.00g".
- Place the 50g calibration weight precisely on the center of the weighing pan.
- The display will show "PASS" and then return to normal weighing mode, indicating successful calibration.
- Remove the calibration weight.
Image: Calibration steps: 1. Press and hold MODE until "CAL" appears, then "50.00g" flashes. 2. Place the 50g weight on the pan; display shows "PASS" upon completion.
Maintenance
- Cleaning: Wipe the scale surface with a soft, slightly damp cloth. Do not use harsh chemicals, abrasive cleaners, or immerse the scale in water.
- Storage: When not in use, store the scale in a dry, cool place, preferably in its protective case, to prevent dust accumulation and physical damage.
- Battery Replacement: If the display shows a low battery indicator or the scale does not turn on, replace both AAA batteries with new ones.
- Calibration: Calibrate the scale regularly, especially after moving it or if you suspect inaccurate readings.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Scale does not turn on. | Low or dead batteries; incorrect battery installation. | Replace batteries; ensure correct polarity. |
| Inaccurate readings. | Scale not calibrated; unstable surface; air currents; overload. | Perform calibration; place on a stable surface; shield from drafts; do not exceed 50g. |
| Display shows "EEEE". | Overload. | Remove item immediately. Do not exceed 50g. |
| Display shows "UNST". | Unstable surface or vibrations. | Place scale on a firm, level, and stable surface. |
Specifications
- Model: UNI-P-50
- Capacity: 50g
- Accuracy: 0.001g
- Units: g, oz, ozt, dwt, ct, gn (6 units)
- Display: LCD
- Power: 2 x AAA Batteries (included)
- Materials: Stainless Steel, ABS, Rubber
- Product Dimensions: Approximately 14.4 cm x 8.5 cm x 2.4 cm (5.67 in x 3.35 in x 0.94 in)
- Special Features: Milligram precision, Tare function, Calibration function, Protective flip case, Magnetic design.
Image: The compact size of the milligram scale, with dimensions of 5.67 inches by 3.35 inches by 0.94 inches, making it pocket-friendly.
Warranty and Support
UNIWEIGH products are designed for reliability and performance. This product comes with a 2-year availability of spare parts as per manufacturer specifications. For technical support, warranty claims, or further assistance, please contact your retailer or the UNIWEIGH customer service department through the contact information provided with your purchase or on the official UNIWEIGH website.
Please retain your proof of purchase for warranty purposes.