Introduction
This manual provides comprehensive instructions for the safe and effective use of your Lee Precision Safety Scale Red. Please read this manual thoroughly before operating the device to ensure proper setup, accurate measurements, and long-term reliability. The Lee Precision Safety Scale Red is a reliable and very accurate beam scale, featuring a tough Phenolic beam and sensitive readability to 1/20 grain.
Safety Information
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Always handle the scale and any materials being weighed with appropriate safety precautions. Ensure proper ventilation when working with powders or chemicals. Keep out of reach of children.
Product Overview
Figure 1: Main view of the Lee Precision Safety Scale Red. This image shows the complete assembly of the scale, including the red base, black beam, and the weighing pan.
Figure 2: Close-up view of the scale's beam and measurement markings. This image highlights the precise markings on the beam for accurate weight measurement.
Key Components:
- Base: The stable red foundation of the scale.
- Beam: The black phenolic beam with measurement markings.
- Poises: Sliding weights on the beam for adjusting measurement.
- Weighing Pan: The pan attached to the beam for holding items to be weighed.
- Pointer: Indicates the balance point of the scale.
Setup
- Unpacking: Carefully remove all components from the packaging. Inspect for any damage.
- Placement: Place the scale on a firm, level, and stable surface, free from vibrations or drafts. Ensure the surface is clean.
- Assembly: Attach the weighing pan to the end of the beam if it is not already connected. Ensure the beam pivots freely.
- Zeroing: With the pan empty and all poises set to zero, the pointer should align with the zero mark on the scale. If it does not, use the adjustment screw (if present, typically at the end of the beam or under the pan) to bring the pointer to zero.
Operating Instructions
Measuring Weight:
- Prepare the Scale: Ensure the scale is zeroed before each measurement.
- Place Item: Carefully place the item to be weighed into the weighing pan.
- Adjust Poises:
- Start with the larger poise (e.g., 10-grain increments) and slide it along the beam until the pointer drops below the zero mark. Then, slide it back one increment.
- Next, use the smaller poise (e.g., 1-grain or 1/10-grain increments) to fine-tune the balance until the pointer aligns precisely with the zero mark.
- Read Measurement: Once balanced, read the weight indicated by the positions of the poises on the beam. The sum of the values from all poises is the total weight.
Important Considerations:
- Avoid touching the scale or the surface it rests on during measurement.
- Ensure no air currents or drafts affect the scale during operation.
- Always handle the scale with care to maintain its accuracy.
Maintenance
- Cleaning: Wipe the scale with a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the scale in a clean, dry place, away from extreme temperatures, humidity, and direct sunlight. It is recommended to store it in its original packaging or a protective case to prevent dust accumulation and damage.
- Calibration Check: Periodically check the scale's accuracy using known calibration weights. If consistent discrepancies are observed, refer to the troubleshooting section or contact support.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Scale does not zero properly. |
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| Inconsistent readings. |
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| Beam does not move freely. |
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Specifications
| Feature | Detail |
|---|---|
| Brand | Lee Precision |
| Model Name | 90681 |
| Color | Red |
| Material | Phenolic |
| Weigh Scale Type | Balance Scale |
| Readout Accuracy | 0.00324 g (approximately 1/20 grain) |
| Weight Limit | 1 Pounds (approx. 453 grams) |
| Item Weight | 0.91 Pounds (approx. 413 grams) |
| Item Dimensions (LxWxH) | 10 x 7 x 3 inches |
| UPC | 734307906818 |
| Country of Origin | United States |
Warranty and Support
For specific warranty information, please refer to the documentation included with your purchase or visit the official Lee Precision website. Lee Precision products are known for their durability and quality. For technical support, replacement parts, or service inquiries, please contact Lee Precision customer service directly.
Contact Information: Please refer to the official Lee Precision website or product packaging for the most current contact details.
