How to improve the accuracy of the balance
The electronic precision balance is an electronic balance with high precision in the electronic balance. It has a high-precision load cell, so its accuracy and sensitivity have been improved. It is widely used in quantitative analysis of laboratories, research institutes and other places.
We all know that electronic precision balances use the principle of electromagnetic force balance to achieve weighing. Although the measurement accuracy and sensitivity exceed the traditional mechanical precision balance, because this balance is susceptible to external temperature and electromagnetic environment,
So we need to pay attention to some details when using, so that we can improve its weighing accuracy.
Precision balance
Precautions for use:
A. Fully preheating before use, generally should be more than 30 minutes. The higher the accuracy of the balance, the longer the preheating time should be.
B. Correct the standard weights before use. The weights of the corresponding grades selected by the balances of different accuracy.
C. The time reading should be fixed after loading, such as reading at the value of 5 seconds after loading or reading at the time when the unit is displayed.
D. Multiple measurements, take the average value (3~5 times).
E. The room should be protected from direct sunlight. It is best to choose a shady room or use a blackout method.
F. Precision balances should be kept away from the source of vibration, such as railways, highways, vibration machines and other vibration machinery. When it is unavoidable, anti-seismic measures should be taken.
G. Keep away from heat sources and high-energy electromagnetic fields.
H, the temperature in the working room should be constant, preferably around 20 °C.
I. The relative humidity in the working room should be between 45% and 75%.
J. The workroom should be clean and clean to avoid the influence of airflow.
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