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Mechanical balance use precautions
Mechanical balances operate based on the principle of mechanical equilibrium, utilizing mechanical, optical, or other non-electrical methods to determine the mass of an object. These devices are commonly used in industrial and mining enterprises, research institutions, universities, and laboratories for precise measurement and analysis. Proper usage is essential to ensure accuracy and maintain the longevity of the equipment.
Ziquan Instruments advises users to follow these key steps when operating a mechanical balance:
1. Before starting, check if the bubble in the spirit level located on top of the balance beam is centered. If it’s not, adjust the leveling screws under the front feet of the balance until it is level. This ensures accurate measurements.
2. Make sure the lifting lugs at both ends of the balance beam are properly engaged. This helps in stabilizing the balance during use.
3. Confirm that the weight index disk is set to zero. This is crucial for accurate readings.
4. Turn on the balance by rotating the switch knob and adjust the lever at the bottom of the balance so that the rider (or cursor) is positioned at the zero mark.
5. After setting the zero point, estimate the mass of the container holding the substance you will be weighing. This helps in selecting the appropriate weights for the next step.
6. Place the estimated container on the left pan and add known weights to the right pan using the analytical balance. Slowly open the balance halfway and check if the reading falls within the scale range. If not, adjust the weights accordingly. Remember, any adjustments should be made while the balance is closed.
7. Once the balance is closed, add or remove substances from the left pan as needed. Always make changes when the balance is turned off to avoid errors.
8. After completing the weighing, ensure the ring code scale returns to zero before removing the object and weights. This confirms that the balance is ready for the next use.
Proper handling and regular maintenance of mechanical balances are essential for reliable results. Always handle the balance with care, and never place heavy objects on it without proper estimation. By following these guidelines, users can achieve consistent and accurate measurements every time.