Instruction Manual
12
TROUBLESHOOTING GUIDE
Unit does not turn “ON”
when ON/OFF key is
pressed
• Verify that batteries are installed and
contain a charge.
“Err1” is indicated
• The batteries must be replaced.
No display readings are
obtained and no “OK”
icon is observed
• Poor acoustic coupling to pipe. Apply
silicone grease to transducer.
• Ensure pipe is full of a flowing liquid.
• If the pipe has a plastic liner, move the
transducer to another location. The liner
may contain an air void.
• Non-working transducer. Rub
transducer head with thumb for reading.
• Liquid contains less than 3% total
suspended solids.
• Move transducer closer to a source of
flow disturbance (i.e. an elbow, pump
outlet or control valve).
Dashes appear on display
• Liquid velocity is greater than 30 FPS (9
MPS).
Readings are obtained,
but the “OK” icon does
not turn on.
• Signal strength is low. Flow readings
may be erroneous. Move the transducer
closer to a source of hydraulic
disturbance.
Erroneous Readings
• Transducer mounted incorrectly.
• Another local ultrasonic instrument is
operating at approximately the same
frequency as the UFX.
• Excessive pipe vibration.
• Very viscous (thick) liquids will cause
the unit to read lower than actual flow.
• The pipe is not completely full of liquid.