Maintenance And Cleaning - WIKA LSO.02 Mode D'emploi

6. Commissioning, operation / 7. Maintenance and cleaning
6.2 Mechanical installation of the Mini Limit Switch
Mount the mini limit switch, pressure tight, into the process connection. The distance
between sensor-tip and opposite surface of the pipe should be greater than 10 mm. If the
GB
pipe is electropolished, the distance should be increased accordingly.
6.3. Electrical connection of the mini limit switch
The sensor must be connected as shown in the connection diagram.
Electrical connection diagram
O. C. pnp
Switching direction
The switching direction is factory set:
Model Function
SE Normally
open
SE Normally
open
SA Normally
closed
SA Normally
closed

7. Maintenance and cleaning

7.1 Maintenance
As a rule, the Mini Limit Switch is maintenance-free.
If the plant is subject to heavy contamination or scale, it is advisable to set up periodic
maintenance. This depends on the optical condition of the glass tip and the switch
operation.
Repairs must only be carried out by the manufacturer.
12
brown
green
Output
Load
white
Condition LED
immersed on
not immersed off
immersed off
not immersed on
WIKA operating instructions mini limit switch, model LSO.02
Connector assignment
Output transistor
switch on
switch off
switch off
switch on
Output
Ext. relay
connect
disconnect
disconnect
connect