Troubleshooting - Tecfluid FLOMID Series Instruction Manual

TROUBLESHOOTING

16
Problem
It apears the empty pipe
screen instead of the
working screen
The flow rate is unstable
The indicated flow rate
is 0
The instrument indicates
a value when there is not
flow
The displayed flow rate
is higher than expected
Display is off
Probable cause
Pipe is empty
The functional earth is not
connected
Isolation of the electrodes
Electrode cable disconnected
Liquid with very low conductivity
Dirt on the electrodes
The product contains air or non-
conductive particles in suspension
Coil cable disconnected
The flow rate is smaller than
programmed as CUT OFF
The sensor is damaged due to
electrodes corrosion
Electrode material not adequate for
the liquid
The functional earth is not
connected and the empty pipe
option is OFF
The electrodes are immersed but
the pipe is not completely full
Blown fuse
Not enough current from the power
supply
Deactivated screen
Instrument in mode OFF
Empty batteries
Solution
Make sure that the pipe is
completely full, for example,
installing the flowmeter in a vertical
pipe with upwards flow
Connect the functional ground of
the flowmeter to a metallic point of
the installation in contact with the
liquid
Clean the sensor electrodes
Connect the cable between the
sensor and the electronic converter
The flowmeter is not adequate for
the application
Clean the sensor electrodes
Verify that the flowmeter is
adequate for this application
Connect the cable between the
sensor and the electronic converter
Decrease the value of the cut off
(see page 28)
Change the sensor
Connect the functional ground of
the flowmeter to a metallic point of
the installation in contact with the
liquid
Make sure that the pipe is
completely full, for example,
installing the flowmeter in a vertical
pipe with upwards flow
Change the fuse
Change the power supply
Press (Escape) to turn the screen
on
Press (Escape) to turn the screen
on and select ON
Change the batteries (see page 37)
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