[SM-385853-A]
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37
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MAINTENANC
3
3.2
Troubleshooting
Trouble
Cause
Corrective action
No flow display
(No analog output)
Breakage of wire.
Replace FSM2.
Recheck/repair external wiring.
Wrong connection of power
source.
Connect the rated power source
correctly.
Malfunction caused by noise.
Keep FSM2 main body and cable
away from noise source.
Output circuit is broken.
Replace FSM2.
FSM2 is broken.
Replace FSM2.
Flow display remains 0.
(Analog output remains
1V or 3V)
Flow path clogged by foreign
matter.
Remove foreign matter and install
filter at primary side of FSM2.
Flow display does not
reach 0. (Analog output
does not make 1V or
3V)
Leakage
Check and correct piping.
Foreign matter sticking to sensor
chip.
Replace FSM2.
Malfunction caused by noise.
Keep FSM2 main body and cable
away from the noise source.
Poor precision
Sensor chip is broken.
Replace FSM2.
Foreign matter sticking to sensor
chip.
Replace FSM2.
Malfunction caused by noise.
Keep FSM2 main body and cable
away from the noise source.
Flow display is not sta-
ble. (Analog output is
not stable. Output is
chattering.)
Pulsation of air.
Fault in power source (not
enough voltage/capacity)
Pulsation of air.
Reduce pulsation by installing
tank, etc.
Change the response time.
Change the display speed.
Change the hysteresis.
Fault in power source (not
enough voltage/capacity)
Supply rated voltage.
Provide power source with enough
capacity.
Malfunction caused by noise.
Keep FSM2 main body and cable
away from noise source.
It doesn’t move at pow-
er supply on by abnor-
mal display.
It turned on power with the button
had been pushed.
The power supply is put again
without pushing the button.
Discontinue
Содержание Rapiflow FSM2 Series
Страница 49: ...48 PRODUCTS SM 385853 A FSM2 N P A15 Flow range 501 102 2 M3 depth5 Discontinue...
Страница 52: ...51 PRODUCTS SM 385853 A FSM2 A A15 Flow range 501 102 2 M3 depth5 Discontinue...
Страница 55: ...54 PRODUCTS SM 385853 A FSM2 A H08 H10 S08 B Flow range 500 101 201 FSM2 A A15 B Flow range 501 102 Discontinue...