User’s Manual Smart Digital Power Meter
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Chapter 9 Storage and Calibration
9.1 Notice Matters for Storage
9.1.1 The instrument should be stored in the environment which specified in the user manual, refer to Chapter
2.2 storage temperature in Technical Index table. Do not store the instrument in a place with high
temperature, high humidity, temperature rapid change or easy condensation. The recommended
storage environment is dry and at a temperature of about 20°C.
9.1.2 Keep product’s packaging materials (cardboard boxes, padding, plastic bags, etc.) for later delivery of
instruments. Using packaging materials to transport instruments can protect them from sudden
temperature changes, shocks and vibrations, and protect them from damage during transportation.
9.1.3 Do not store the instrument in an environment with dust, fumes or chemical gases.
9.1.4 Avoid direct sunlight.
9.2 Trouble-shooting
No.
Problem
Solution
1
No widow display when
enable the instrument
（
1
）
Make sure the power cable is well connecting.
（
2
）
Make sure the supply power is within the allowed power range.
2
Displayed measurement
value is incorrect
（
1
）
Make sure the operating temperature and humidity within the
allowed range.
（
2
）
Make sure the display is away from noise interference.
（
3
）
Check whether the test wire is well connecting.
（
4
）
Check whether the wire is connect correctly.
