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The rules and maintenance points of liquid specific gravity balance

Time:2020-07-21 11:38:21 Click:

The liquid specific gravity balance is a teaching instrument and an indispensable liquid measuring instrument in the laboratory. The liquid specific gravity balance has many requirements in the process of using it, if it is used improperly, it will cause measurement errors. Today, let me introduce the main points of the use of liquid specific gravity balance:


1. The balance should be adjusted and balanced before use.

2. Put the liquid to be tested into the glass measuring cylinder and test.

3. Immerse the measuring hammer into the liquid in the glass measuring cylinder. At this time, the beam is out of balance; various weights should be placed on the V-shaped groove and small hook of the beam to restore the balance of the liquid specific gravity balance. The sum of the weights on the hook is the measured specific gravity of the liquid.

4. After the liquid measurement is completed, all the weights on the V-shaped groove and small hook of the beam should be removed, and the V-shaped groove and small hook of the beam should not be left.

5. When the balance needs to be moved, the parts, components and beams that are easy to separate should be disassembled and separated to avoid damage to the knife.

6. According to the frequency of use, regular cleaning work and measurement performance verification should be carried out. When the balance is found to be distorted or doubtful, it should be stopped before the fault is cleared, and it can be used after the repair verification is qualified.


Maintenance guidelines for liquid specific gravity balances:

1. Clean the blades and agate blade holders regularly. Use handkerchiefs and soft brushes to clean them. It is strictly forbidden to use coarse cloths and hard brushes, and to prevent scratches and damage.

2. When the balance needs to be moved, the parts, components and beams that are easy to separate should be disassembled and separated to avoid damage to the knife.

3. After the liquid is measured, all the weights on the V-shaped groove and small hook of the beam should be removed, and the V-shaped groove and small hook of the beam should not be left.


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