User manual for single-phase meter
57
22 Service
22.1 Fault Operation
If the LCD cannot display correctly, or data communication does not work, please check as
follows:
1. Whether the environment temperature is over the limit working temperature range of the meter
2. Whether the optical communication interface or LCD display window is clean (no scratches, no
paint, no fog, or any other kinds of pollution)
If it’s not the above-mentioned reasons which leads to failure, meters should be unloaded
and sent to Hexing service center.
22.2 Meter Repair
If the METER repair is necessary, please operate in accordance with the following process:
1. If the METER has been installed, then uninstall the METER (refer to
chapter " Un-installation"),
and reinstall another METER.
2. Describe the fault phenomenon as much as possible (if you can, please provide with METER fault
code), the name, phone number of the responsible person for the follow-up maintenance. Please
indicate the serial number and complete METER model (METER model can be obtained from the
METER nameplate)
3. Package the METER, ensure the METER will not be damaged during the transport. Try to use the
original package. Don’t put in a METER with missing part
4. Send the electric METER to a certified Hexing service center
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