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
Adhere to the electrical safety regulations!
PROBLEM:
The display is dark after the reset/test button has been
pressed.
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 conn and -. It should be 11–
17 V DC.
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.
PROBLEM:
Fault alarm on (the backlight of the display is flashing)
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.
If problems occur, contact Labkotec Oy's service department.
Installation and Operating Instructions | idOil Solar
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