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STRAINER MAINTENANCE
WARNING!: Before any maintenance operation
!
make sure that there is no fluid pressure in the
pipeline and the unit is isolated from the line by
means of a valve.
TROUBLESHOOTING
SYMPTOM
Lack of accuracy
The solenoid valve
does not open
Low flowrate
The solenoid valve is
always opened
6
838 844 R. 02/20
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
4
3
POSSIBLE CAUSE
Wrong calibration factor
Flow exceeding flowmeter range
Check the indicator leds. If CAN BUS led (green) is on
and S.V. ON led (red) is blinking, the unit is damaged
Dirty or damaged strainer
Check the indicator leds. If CAN BUS led (green) is on
and S.V. ON led (red) is blinking, the unit is damaged
By-pass mode activated.
The by-pass led should be on.
Can cable loosen or damaged.
The by-pass led should be on.
To prevent any damage to the meter and solenoid valve
integrated, the unit is equipped with a strainer accessible
from outside.
In order to carry out maintenance tasks in the strainer
loosen the screws (1), remove the cover (2) and pull out
the gasket (3). Next, take out the extrainer (4) and clean
it or replace it in the case that it was damaged.
Mount the strainer in its place verifying its correct position
(fig. 10). Mount the gasket (3), place the metal cover (2)
and fix the screws (1) with a minimum torque of 6 N.m.
2
1
Fig. 10
SOLUTION
Consult the calibration procedure of
the system.
Contact your service representative.
Clean / replace the strainer.
Contact your service representative.
Turn off by-pass mode in the
system.
Check CAN connections and cable
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