Labkotec OilSET-1000, Инструкция по установке и эксплуатации

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OilSET-1000 Oil Separator Alarm Device D15492AE-2
Installation and Operating Instructions
Copyright © 2019 Labkotec Oy 8/13 We reserve the right for changes without notice
4 TROUBLE-SHOOTING
Problem: MAINS LED indicator is off
Possible reason: Supply voltage is too low or the fuse is blown. Transformer or MAINS LED
indicator is faulty.
To do: 1. Check if the two pole mains switch is off.
2. Check the fuse.
3. Measure the voltage between poles N and L1. It should be 230 VAC + 10 %.
Problem: No alarm when sensor in oil or air, or the alarm will not go off
Possible reason: The SENSITIVITY setting is wrong in the control unit (see figure 7), or sensor is
dirty.
To do: 1. Clean-up the sensor and lift it up in the air or immerse it into oil.
2. Turn the SENSITIVITY potentiometer slowly anticlockwise until the sensor gives
an alarm.
3. Immerse the sensor into water and wait until the alarm goes off. If the alarm
does not go off, turn the potentiometer slowly clockwise until the alarm goes off.
4. Lift the sensor up in the air or oil. The sensor should give an alarm again.
Problem: FAULT LED indicator is on
Possible reason: Current in sensor circuit too low (cable break) or too high (cable in short circuit).
The sensor might also be broken.
To do: 1. Make sure, that the sensor cable has been connected correctly to the OilSET-
1000 control unit. See sensor specific instructions.
2. Measure the voltage separately between the poles 10 and 11. The voltages
should be between 10
,3….11,8 V.
3. If the voltage is correct, measure the sensor current. Do as follows:
3.1 Disconnect sensor
’s [+] wire from sensor connector (pole 10).
3.2 Measure short circuit current between [+] and [-] poles.
3.3 Connect mA-meter as in figure 8.
Make a comparison to the values in Table 1.
3.4 Connect the wire back to the connector.
If the problem can not be solved with the above instructions, please contact
Labkotec
Oy’s local distributor or Labkotec Oy’s service.
Attention! If the sensor is located in an explosive atmosphere, the multimeter must
be Exi-approved!
SET/DM3AL, channel 1
Poles 10 [+] ja 11 [-]
Shortcircuit 20 mA
– 24 mA
Sensor in the air 9
– 11 mA
Sensor in oil (

r

2)
9
– 11 mA
Sensor in the water 3
– 4 mA
Factory setting for
alarm point approx. 6.5 mA
Figure 8. Sensor current measurement Table 1. Sensor currents