15
Installation
5.7 Operations monitoring (Option)
A pressure switch can be installed on the side of the support to monitor the oper-
ating fluid pressure of the rotary vane pump during operations. By pressure drop
and when the pump is at rest, the contact of the pressure switch opens. The signal
can be used to control external valves.
Fig. 10: Pressure switch; installation location and circuit diagram
5.8 Fitting the ONF and the oil return line (option)
For frequent pumping at higher intake pressures the use of an oil mist filter with
oil return line is recommended in order to reduce the discharge of oil mist.
Fig. 11: Penta 35 with oil mist filter ONF 25 XL
Switching voltage:
5 ... 250 Volt (potential-free)
Current, max.
2 Amp.
Protection class
IP 55
1 + 2 closers = pressureless open
1
2
243
242
33
(241/145)
77
(78)
