ASTER TECHNOLOGIES FT-650 - Troubleshooting

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*MOV – 14mm Dia. and 320V AC ** FUSE - 630mA 11
TROUBLE PROBABLE CAUSE ACTION
Flow less than the
minimum sensing
value
required
Ch f
sensing
velocity.
Turbine not moving
freely.
Display
remains zero
even if flow is
there.
Wrong wiring
Adequate straight run
is
not provided at
upstream,
downstream
of sensor.
Connect the wires as per
Provide st
raight
run as per
guidelines.
Provide
a
bend
between the
valve and the sensor.
Meter shows
error in
reading
Scale factor disturbed
No display
High voltage
Frequent
Fuse failure
MOV short
Replace MOV* as well as
FUSE**
ecK i any
downstream
valve is
closed.
Open the
valve,
remove the sensor
from the fitting and check
the
change in reading by
physically rotating the
turbine. If meter shows
reading check whether
there is a
ctual flow
.
Change the fitting if
normal flow is less
than
the
minimum
Check the direction
Arrow.If
it is wrong correct the
orientation.
Remove the sensor.
Clean
Turbine &
ensure free
movement of turbine
wheel
Refer
opening instructions
(Page 12)
Check factor. Correct factor
as mentioned
on
sensor.
Check input supply & make
proper connections
Check MOV/FUSE; if it is
burnt then replace it with
new one
wiring diagram.
Recalibrate the meter
In case of multiple
instruments ensure that
the serial number of sensor
& meter is same.
TROUBLESHOOTING: