Installation
15
5.6
Operations monitoring (Option)
For operations monitoring a pressure switch can be installed on the side of the support.
In case of a malfunction, e. g. pressure drop or when the pump is at rest, the contact of
the pressure switch opens. The signal can be used to control external valves.
Fig. 9:
Installation location and circuit diagram of pressure switch
Switch off the pump.
Unscrew screw 326 from the oil passage 18.
Screw pressure switch with O-ring into oil passage 18.
Remove protective cover and make electrical connections at the pressure switch.
Reassemble the protective cover.
Parameter
Oil pressure switch
Protection category IP 55
Contact
Closing contact, normally open
Set point
1000 hPa
Switching voltage
250 V
Switching current V
AC
2 A
1 + 2 closers = pressureless open
1
2
18
326
248
