Notes on precision balance

As we all know, the precision balance is a kind of precision electronic instrument, which is widely used in laboratory and medical fields.This electronic balance uses a higher precision sensor and more control chip, so it has higher precision and sensitivity than ordinary electronic balance.Although the precision balance has many advantages, it is easy to be interfered by external factors, electromagnetic and other factors, which will produce certain errors. So how can we improve the accuracy of the precision balance?

Improve accuracy of electronic precision balance

1. The room should avoid direct sunlight, choose a shady room or use shading method.
2. Precision balance should be far away from the source, such as railway, highway, vibration machine and other vibration machinery, can not avoid should take shock measures.
3. Keep away from heat sources and high-intensity electromagnetic fields.
4. The working room temperature should be constant, preferably about 20℃.
5. The relative humidity of the working room should be between 45% and 75%.
6. The working room should be clean and clean to avoid the influence of air flow.
7. Adjust the level bubble to the middle position before use
8. Fully preheat before use, generally should be more than 30 minutes, the higher the accuracy of the balance, the time of preheat should be extended accordingly.
9. Calibrate with standard weights before use, and choose the corresponding weights of different accuracy balances.
10. Fixed time reading should be given after loading, such as reading with the value of 5 seconds after loading or reading with the value displayed in units.
11. Take the average value of multiple measurements (3-5 times).

Improve accuracy of electronic precision balance