User manual for single-phase meter
19
12 Service
12.1 Fault Operation
If the LCD can't display correctly, or data communication does not work, please check
as follows:
1. Whether the environment temperature is beyond 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 other ways of pollution)
If not the above reasons lead to failure, meters should be unloaded and sent to
Hexing service center (according to section 17.2 "METER repair").
12.2 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 (see section 16.5
"Un-installation"), and reinstall an alternative METER.
2. Describe the fault phenomenon as much as possible (if you can, please provide
with METER fault code), offer 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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