Reasons and treatment methods of electronic balances that cannot be calibrated externally
Electronic balances can generally be externally calibrated, and some balances also have an internal calibration function. If regular external calibration is carried out, not only can the sensitivity of the balance be guaranteed, but also the data of the balance can be accurate and reliable. In order to ensure the service life of the balance, when the electronic balance can not perform the external school, it should be shut down for maintenance in time.
When the electronic balance fails, the following methods can be used for self-examination and troubleshooting:
1. Failure reason
1 Operation error.
2 The installation environment of the electronic balance does not meet the requirements.
3 The balance is not level.
4 The balance is not at zero before calibration.
5 The weight error of the external school is too large.
6 The weighing system has a mechanical failure.
7 The internal program is in a state of refusing external schools.
2. Adjustment method
1Revise the instruction manual of the electronic balance and carry out the external school as required.
2 Change the installation environment of the electronic balance or modify the relevant built-in procedures to make it meet the environmental requirements.
3 Adjust the balance so that it is level.
4 Before calibration, the balance should be displayed stably at zero.
5 Select a standard weight that meets the accuracy requirements of the calibrated electronic balance for calibration.
6Repair the mechanical failure of the electronic balance weighing system.
7 Change the internal program of the electronic balance so that it is in the state of executing an external school. The above can not eliminate the fault, please find a professional balance supplier to repair, so as not to cause greater losses!
The following is a picture of the European Randway 0.01mg / 0.1mg analytical balance
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