Badger Meter M-Series M5000 - Manual (Page 31)

TROUBLESHOOTING
The M5000 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 .
OTEE: 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 . Other general conditions include:
Description Possible Cause Recommended Action
Flow is present but
display is "0"
Disconnected signal cable . Check signal cable .
Detector mounted opposite of the main Flow
direction (see arrow on the nameplate) .
Turn detector 180° or switch terminal E1 and E2
or reprogram to bidirectional mode .
Coil or electrode cables exchanged . Check cable connections for cross wiring .
Improper low flow cutoff or full scale flow . Replace configuration defaults .
Inaccurate
measuring
Improper calibration .
Check the parameters (detector factor and size)
according to supplied data sheet .
Wrong calibration parameter .
Pipe not fully filled, or air in pipe .
Check if meter is completely filled with fluid .
Invalid fluid conductivity .
Purge line to eliminate air bubbles .
Invalid fluid mixture .
Blank display Dead battery . Replace battery .
Flow rate value
known to be wrong
Detector factor . Check value on label .
Deposits on electrodes and/or liner . Check and remove deposits .
Incorrect pipe size programmed . Check size if necessary .
Flow rate indication
unstable
Cable issue . Make sure cable is shielded and not vibrating .
Grounding issue . Make sure meter is properly grounded to a good
earth ground .
Partially full pipe . Make sure pipe is full of fluid .
Air in pipe . Make sure fluid does not contain air bubbles .
Invalid fluid conductivity . Make sure amplifier is not too close to sources of
electrical interference .
Troubleshooting
MAG-UM-00219-EN-03 Page 31 August 2014