Badger Meter Positive Displacement - Manual (Page 14)

14
TROUBLESHOOTING GUIDE
TROUBLE POSSIBLE CAUSE SOLUTION
Meter indicates
lower than actual
x Viscosity of fluid is
<30cSt
x Excessive pressure
differential across meter
causing gears to bind
x Debris in measuring
chamber
x Upper housing has dimple
from over tightening
sensor
x Decrease the K-factor by
percent error
x Reduce flow rate, reduce
fluid viscosity
x Clean meter, change or
add filter
x Replace upper housing
Meter indicates
higher than
actual
x Air in lines
x Electro-magnetic
interference
x Reverse fluid flow
x Add air eliminator
x Ground flow meter and
all electronics
x Add check valve
Indicator shows
flow when there is
no flow
x Fluid oscillates
x Electro-magnetic
interference
x Check pump, add check
valve, increase back
pressure
x Ground flow meter and
all electronics. Use
shielded cable and
relocate away from
electrical noise.