The liquid specific gravity balance is a teaching instrument and an indispensable liquid measuring instrument in laboratories. There are many requirements for the use of a liquid specific gravity balance, and improper use can cause measurement errors. Today, let me first introduce the key points of using a liquid specific gravity balance:

1. The balance should be adjusted before use.

2. Place the liquid to be tested into a glass graduated cylinder for testing.

3. Immerse the measuring hammer into the liquid inside the glass measuring cylinder, causing the crossbeam to lose balance; Various weights should be added to the V-shaped groove and small hook of the crossbeam to restore the balance of the liquid specific gravity balance. At this time, the sum of the weights on the V-shaped groove and small hook of the crossbeam is the measured specific gravity value of the liquid.

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

When the balance needs to be moved, easy to separate parts, components, and crossbeams should be disassembled and separated to avoid damaging the knife.

6. According to the frequency of use, regular cleaning work and metrological performance verification should be carried out. When distortion or doubts are found in the balance, it should be stopped from use before the fault is cleared. It can only be used after repair and verification are qualified.

Maintenance criteria for liquid specific gravity balance:

1. Regular cleaning work should be carried out, and each blade and agate holder should be wiped clean with a handkerchief, soft brush, etc. It is strictly prohibited to use coarse cloth or hard brushes, and measures must be taken to prevent scratches and damage.

When the balance needs to be moved, easily separable parts, components, and crossbeams should be disassembled and separated to avoid damaging the knife.

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