(1) There is a stable workbench inside the balance room that can accommodate the electronic balance. The workbench should avoid vibration, airflow, and sunlight, and the level bubble of the balance should be moved to the middle position; And electronic days
The flat room should be kept clean, tidy, and dry, and should not be used for washing, dining, smoking, etc. indoors.
(2) Electronic scales should be kept and maintained by dedicated personnel, with technical file bags set up to store user manuals, calibration certificates, test records, and regular records of maintenance and repair. (3)
The electronic balance should be preheated according to the requirements of the user manual before use.
(4) The weighing pan, outer shell, and wind hood should be cleaned regularly. Generally, use a clean silk cloth dipped in a little ethanol to gently wipe, and a strong solvent can be used. After cleaning the balance, a non corrosive desiccant should be placed inside the frame and replaced regularly
Change. When weighing volatile and corrosive items, they should be placed in a closed container to avoid corrosion and damage to the electronic balance.
(5) Electronic scales should be regularly self calibrated or regularly externally calibrated to ensure optimal sensitivity and other factors. If the balance is found to be unqualified, it should be immediately stopped and sent to professional personnel for repair. balance
Only after repair and verification can it be used.
(6) If any abnormal situation is found after the electronic balance is turned on, it should be immediately turned off, and corresponding inspections should be carried out on the power supply, wiring, fuses, sliding doors, weighing objects, operating methods, etc; And make
Record.
(7) The operating balance should not be overloaded to avoid damaging the balance.
(8) If the electronic balance is not used for a long time, it should be temporarily stored and labeled as out of use according to regulations.
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