Repair And Service; Safety Instructions - Labkotec SET-2000 Oil/Sludge Installation And Operating Instructions Manual

SET-2000 Oil / Sludge (110 VAC)
Installation and Operating Instructions
Figure 5. Sensor current measurement
5

REPAIR AND SERVICE

6

SAFETY INSTRUCTIONS

Copyright © 2019 Labkotec Oy
Shortcircuit
Sensor in the air
Sensor in the oil
Sensor in the sludge or sand
Sensor in the water
Factory setting for alarm point
Table 1. Sensor currents
The sensors should be cleaned and the operation of the alarm device
should be tested when emptying the oil storage chamber or at least once
every six months. The easiest way to check the operation is to lift the
sensors up in the air and put them back to the separator. The operation
is described in chapter 3.
For cleaning, a mild detergent (e.g. washing-up liquid) and a scrubbing
brush can be used.
The mains fuse (marked 125 mAT) can be changed to another glass tube
fuse 5 x 20 mm / 125 mAT complying IEC/EN 60127-2/3. Any other repair
and service works on the device may be carried out only by a person
who has received training in Exi devices and is authorized by the
manufacturer.
In case of queries, please contact Labkotec Oy's service.
SET-2000 Oil/Sludge must not be installed in potentially explosive
atmosphere. Sensors connected to it may be installed in zone 0, 1 or 2
potentially explosive atmosphere.
In case of installations in explosive atmospheres the national
requirements and relevant standards as IEC/EN 60079-25 and/or
IEC/EN 60079-14 must be taken into account.
Warning! If the cabling is voltage-tested, the sensor must be
disconnected.
If electrostatic discharges can cause hazards in the operating
environment, the device must be connected into equipotential ground
according to requirements with regards to explosive atmospheres.
Equipotential grounding is made by connecting all conductive parts into
same potential e.g. at the cable junction box. Equipotential ground must
be earthed.
The device does not include a mains switch. A two pole mains switch,
which isolates both lines (L1, N) must be installed in the main power
supply lines in the vicinity of the unit. This switch facilitates maintenance
and service operations and it has to be marked to identify the unit.
When executing service, inspection and repair in explosive atmosphere,
the rules in standards IEC/EN 60079-17 and IEC/EN 60079-19 about
instructions of Ex-devices must be obeyed.
10/15
SET/DM3AL, Channel 1
Poles 10 [+] and 11 [-]
20 mA - 24 mA
9 - 11 mA
9 - 11 mA
---
3 - 4 mA
approx. 6.5 mA
We reserve the right for changes without notice
D15645AE-2
SET/S2, Channel 2
Poles 13 [+] and 14 [-]
20 mA - 24 mA
13 - 14 mA
---
12 - 14 mA
5 - 7 mA
approx. 11 mA