Labkotec idOil-20, Installation And Operating Instructions Manual

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8.2. Maintenance measures
The sensors must be cleaned in conjunction with maintenance inspections. You can clean
the sensors with washing up liquid and a washing up brush, for example.
Do not use corrosive substances to clean the sensors.
8.3. Troubleshooting
PROBLEM: The voltage supply indicator light is not on.
Explanation: The voltage received by the device is too low, or the fuse has
blown.
Action:
1. First check that the voltage has not been cut by the mains
switch.
2. Measure the voltage from connectors N and L1. It should be
100–240 V AC.
DANGER OF ELECTRICAL SHOCK!
Adhere to the electrical safety regulations!
PROBLEM: Fault alarm on – The sensor alarm indicator light is flashing
red and the fault indicator light is red (cable cut or loose) or
the alarm indicator lights of all sensors and the fault indicator
light are red (short circuit).
Explanation: The sensor cable is short-circuited, cut or disconnected from the
connector. The sensor could also be damaged.
Action:
1. Measure voltage separately from that sensor's sensor
connectors. The voltage should be 9.0–11.5 V.
2. If the voltage is correct, measure the current received by the
sensor. It should settle between 6.0–8.0 mA within 10 seconds.
3. Reconnect the disconnected wire after the measurement.
The sensor cable wires are not numbered because the voltage
polarity (+ or -) makes no difference.
EXPLOSION HAZARD!
Observe the installation and maintenance instructions for explosive
atmospheres!
The measuring device must be Exi classified if the sensor is in an
explosive area.
If problems occur, contact Labkotec Oy's service department.
Installation and Operating Instructions | idOil-20 24/34
DOC001600-EN-5