User manual for poly-phase meter
48
22 Maintenance
There is no need to change the METER within the life cycle. METER
maintenance can be executed based on local regulations. Recommended every 5~10
years.
22.1 Clean
Use dry cloth to clean the surface of the METER and wipe the stains and insects.
Warning: Flowing water and high-pressure water equipment is not
allowed to clean the METER, which may lead to short circuit.
22.2 Error and function check
The following process can be performed to recognize error and check function
1. Insert the METER to the corresponding terminal of error test bench. (electric
METER wiring hole number detailed in chapter 19.1 "Meter Connection"), tighten the
connection screws(maximum torque is 3Nm)
2. Put the pulse testing part of the error testing bench align to the LED on the
METER.(Actual auxiliary terminal definition can be found on installation manual or
on the wiring diagram on the nameplate.)
3. Start the error test bench. Put on rate voltage but no current. Confirm no current
indictor display on LED. Check whether the electric METER is displayed correctly
(trouble-free code instructions).
4. After the METER is power on, set the METER to test mode through
communication. The test mode is with the highest level of security. Both
communication key and administrator password are needed to enter the test mode.
Attention: In order to not affect the actual accumulated power when
doing the test, each time METER is off from the electricity, the
METER need to set into the test mode again.
5. Start the error testing bench
6. Execute relay control operation through PC software(if the relay is applied), check
whether the relay is working properly.
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