Idoil-Oil Sensor Troubleshooting With Set Control Unit - Labkotec idOil-OIL Installation And Operating Instructions Manual

Installation and Operating Instructions | idOil-OIL
8.2.

idOil-OIL sensor troubleshooting with SET control unit

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.
The sensor cable wires are not numbered because the voltage polarity (+ or -) makes no
difference.
PROBLEM:
Explanation:
Action:
The measurement can also be carried out on the separator end by opening the cable
extension / junction box.
1. Ex-classified mA current meter
2. SET-1000/2000 series control unit's sensor connector
3. idOil-OIL sensor
Figure 8 . Measuring sensor current; SET-1000/2000 control unit - idOil-OIL sensor
If problems occur, contact Labkotec Oy's service department.
Fault alarm is on:
The sensor circuit's Fault indicator light is on and the buzzer is
sounding.
The sensor cable is short-circuited, cut or disconnected from the
connector. The sensor could also be damaged.
1. Measure voltage separately from that sensor's sensor connectors.
The voltage should be 10.0 - 12.0 V.
2. If the voltage is correct, measure the current drawn by the sensor
as follows:
2.1 Disconnect the sensor wire from the central unit's + sensor
connector.
2.2 Connect an mA meter as shown in the figure below.
2.3 The current value should settle within 10 seconds as follows:
- sensor in water 10–14 mA
- sensor in air/oil 6–8 mA
2.4 Reconnect the disconnected wire after the measurement.
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