Troubleshooting guide – Badger Meter Positive Displacement User Manual

Page 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.