ELECTRONET
UM-ELMAG 200-R3
PAGE 33 OF 34
13. TROUBLE SHOOTING PROCEDURE
General mishandling on site :
1. Application of power supply 230 V AC at incorrect terminals like input .
2. Loose connection on terminations.
3. Incorrect calibration.
Precautions to be taken on site :
1. Read the instruction manual carefully before installing the instrument.
2. Do the connections as per the termination details given in the manual.
3. Terminal connections should be tight.
4. Check for proper supply voltage. It should be between 90 to 260V AC.
5. During calibration, follow the steps mentioned in the manual.
6. Verify that earthing is proper.
12. DOS & DON'TS
SYMPTOMS
CAUSE OF FAILURE
ACTION TO BE TAKEN
1. Absence of power supply
at terminal block
2. Loose connection on
termination.
1. Check power supply
connections & rectify
the fault.
2. Tight the termination
connections.
Incorrect display indication. 1. Incorrect calibration.
1.
Recalibrate the instrument.
Refer calibration procedure.
Flow is not registered at all. 1. Reverse flow direction.
1.Check for correct flow
measurement direction as
indicated by arrow on the
flowmeter.
Incorrect retransmission
output.
1.Retransmission output
calibration disturbed.
1.Recalibrate the instrument
for retransmission output.
Refer calibration procedure.
No display indication
Periodical maintenance :
The flow meter does not require any special maintenance. Dependent on the media being
measured it is recommended that approx. once a year, remove the sensor from the pipe and
clean the liner. Method of cleaning consists of removing mechanical dirt and any non conductive
coating (like oil film) from the liner. A very dirty liner could cause inaccuracy of the
measurement. Check mechanical state of the liner
