Precautions - East Tester ET51 Series User Manual

1.2 Precautions

1.2.1 Conditions of Use
1) Temperature and humidity range: Temperature: 5 to 40 ℃,
Humidity: Below 80% RH (without standing water or
condensation).
2) Temperature and humidity range ensuring accuracy: Temperature:
23 ± 5 ℃. Humidity: Below 80% RH (without standing water or
condensation).
3) The instrument should be stored and operated away from the
following environments to avoid inaccurate measurement results
or instrument accidents:
Environments with excessive dust;
Excessively high or low temperatures;
Direct sunlight;
Strong electrical and magnetic fields;
Objects or attachments with electric charge or generating noise;
Environments with significant vibration;
Damp or environments with condensation/standing water;
Environments containing corrosive gases or other hazardous
gases;
Environments where the instrument is prone to falling due to a
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