
Turbine Flow Meters, BP1100 Series
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 recali-
brate monitor. Move to location where
meter is full on startup or add down-
stream 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.
The Pembina BP1100 is proprietary to Pembina Controls Inc. and a private labeled Blancett product. Blancett is a registered trademark of Badger Meter, Inc. Other trademarks
appearing in this document are the property of their respective entities. Due to continuous research, product improvements and enhancements, Badger Meter reserves the right to
change product or system specifications without notice, except to the extent an outstanding contractual obligation exists. © 2020 Badger Meter, Inc. All rights reserved.
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9511 –28th Avenue NW |Edmonton, Alberta |T6N 0A3
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All rights reserved. 2021 Pembina Controls Inc
www.pem-controls.com
Doc.: PEM-BP1100 TURBINE FLOW METER USER MANUAL