Fault Finding - Grundfos Conex DIS-G Instrucciones De Instalación Y Funcionamiento

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12. Fault finding

In case of measurement faults, see the
Note
manual of the gas sensors.
Fault
1.
No display
following start-up.
2.
Display
permanently at
zero.
3.
Display with
measured value
unsteady.
4.
Sensor fault when
switched on.
Cause
a)
No power supply.
a)
Open circuit in cable between
sensor and gas warning device.
a)
Interferences on cable from sensor. Check that the display is properly
b)
Sensor faulty.
a)
Sensor not connected.
b)
Cable faulty.
c)
Sensor faulty.
Remedy
Connect the power supply.
Check the connection cable, and
establish connection.
connected.
Route the cable separately from the
power supply cables.
Replace the sensor.
Connect the sensor.
Replace the cable.
Replace the sensor.
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