User manual for single-phase meter
20
13 Maintenance
There is no need to verify the METER within the life cycle. METER maintenance can
be executed based on local regulations. Recommended every 5~10 years.
13.1 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.
13.2 Error and function check
The following process can be performed to realize error and function check
1. Insert the METER to the corresponding terminal of error test bench. (Electric
METER wiring hole number detailed in chapter 15.1 "Connection diagram"), tighten
the connection screws (maximum torque is 3Nm)
Attention: If the error test bench can’t support the independent current
inductor of the direct METER, the voltage connection tick need to be
disconnected. User can choose internal connection tick (protected by
the METER cover, only can reach after open the cover) and external tick
(can reach under the start button). After the error test, reconnect the
tick. Ensure the correct and stable connection.
2. Put the pulse testing part of the error testing bench align to the LED on the
METER.
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. Start the error testing bench
5. Take off the METER from the error test bench after test complete.
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