Badger Meter M-Series M2000 - Manual (Page 56)

TROUBLESHOOTING
The M2000 mag meter is designed for many years of optimal performance However, should it malfunction, there are certain
things that we recommend you check before contacting our Technical Support department or your local Badger Meter
Representative
NOTE: N If the fluid measured has a high concentration of conductive solids, deposits may accumulate on the internal
liner walls and electrodes These deposits will cause a reduction of the measuring output Thus, Badger Meter
recommends that you remove the meter and inspect the liner and electrodes after six months If deposits are found,
remove them with a soft brush Repeat inspection process every six months or until an appropriate inspection cycle
can be established for the specific application
NOTE: N Other general conditions include:
Description Possible Cause Recommended Action
Flow is present but display
is "0"
Digital input is holding flow
Disconnected signal cable
Detector mounted opposite of the main
flow direction (see arrow on the nameplate)
Coil or electrode cables exchanged
Improper low flow cutoff or full scale flow
Check signal cable
Turn detector by 180° or switch terminal E1
and E2 or reprogram to bidirectional mode
Check cable connections for cross wiring
Verify digital input configuration
Replace configuration defaults
Inaccurate measuring Improper calibration
Wrong calibration parameter
Pipe not fully filled, or air in pipe
Invalid fluid conductivity
Invalid fluid mixture Restore calibration defaults
Check the parameters (detector factor and
size) according to supplied data sheet
Check if meter is completely filled with fluid
Purge line to eliminate air bubbles
No display No power
Incorrect power
Bad wiring connections
Blown fuse Apply power
Check power value
Replace fuse (2 amp, 250V AC, slow blow
5 x 20 mm)
Check display ribbon cable
Flow rate value known to be
wrong
Detector factor
Deposits on electrodes and/or liner
Incorrect pipe size programmed Check value on label
Check and remove deposits
Check size if necessary
Flow rate indication
unstable
Cable issue
Grounding issue
Partially full pipe
Air in pipe
Amplifier location – outside electrical
Invalid fluid conductivity Make sure cable is shielded and not vibrating
Make sure meter is properly grounded to a
good earth ground
Make sure pipe is full of fluid
Make sure fluid does not contain air bubbles
Make sure amplifier is not too close to sources
of electrical interference
M-Series® M2000 Electromagnetic Flow Meter
Page 56 August 2012