Owner manual

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