Badger Meter 1100 - Manual (Page 11)

Part number information
TROUBLESHOOTING GUIDE
Trouble Possible Cause Remedy
Meter indicates higher than actual flow rate
Cavitation .
Debris on rotor support .
Build up of foreign material on meter bore .
Gas in liquid . Increase back pressure .
Clean meter .
Clean meter .
Install gas eliminator ahead of meter .
Meter indicates lower than actual flow rate .
Debris on rotor .
Worn bearing .
Viscosity higher than calibrated . Clean meter and add filter .
Clean meter and add filter .
Recalibrate monitor .
Erratic system indication, meter alone works
well (remote monitor application only) .
Ground loop in shielding .
Ground shield one place only . Look for
internal electronic instrument ground .
Reroute cables away from electrical noise .
Indicator shows flow when shut off .
Mechanical vibration causes rotor to
oscillate without turning .
Isolate meter .
No flow indication .
Full or partial open position .
Fluid shock, full flow into dry meter or
impact caused bearing separation or
broken rotor shaft .
Rebuild meter with repair kit and recalibrate
monitor . Move to location where meter
is full on startup or add downstream flow
control valve .
Erratic indication at low flow, good
indication at high flow .
Rotor has foreign material wrapped around
it .
Clean meter and add filter .
No flow indication . Faulty pickup . Replace pickup .
System works perfect, except indicates
lower flow over entire range .
By-pass flow, leak .
Repair or replace bypass valves, or faulty
solenoid valves .
Meter indicating high flow, upstream piping
at meter smaller than meter bore .
Fluid jet impingement on rotor . Change piping .
Meter indicating low flow, upstream piping
at meter smaller than meter bore .
Viscosity lower than calibrated .
Change temperature, change fluid or
recalibrate meter .
Page 11 July 2014 TUR-UM-00014-EN-03