User’s Manual
Rev1.0
Date:15/07/2015 User’s Manual
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After checking out above issues, please process trouble shooting according to following description.
Problem
Possible Cause
Solution
Velocity measurement is
erractic or fluctuating
Very erractic or non-uniform
flwo
Follow installation requirements
shown in Chapter 2
Flow meter installed with less
than required minimum pip
diameters upstream and dlown
stream of the sensor
Follow installation requirements
shown in Chapter 2
Insertiong sensor probe not
mounted securely
Sensor probe must be mounted
securely without vibration
Earthing circuit loop
Wire the meter according to the
introduction in Chapter 3
Liquid contains in fluid
Install a water filter in upstream of
the meter
Sensor failure
Return to factory for evaluation
Transmitter failure
Return to factory for evaluation
The measuring flow is
too high or too low
Sensor is not inserted to the
middle of the pipe line
Please fix the sensor in the middle
of the pipeline
The flowmeter is not vertical to
the center line of the pipe line
Re-install the meter and make the
probe vertical to the center line of
the pipe line
No flow measured
The limit of small signal cut off
is set too high
Set the small signal cut off limit to
a lower and proper value
The flow rate in pipeline is
smaller than the lower limit of
the meter
Contact the supplier
The flow rate in pipeline is
larger than the higher limit of
the meter
Contact the supplier
Flow profile distortion
Try to find another location for the
meter
Sensor failure
Return to factory for evaluation
Transmitter failure
Return to factory for evaluation
Extremely turbulent flow
Do not place the emter near a
ventilator static mixer or valve
