➤ Set the setpoint pressure switching point 6 psig higher than the required compressed air
system pressure.
This ensures that in the event of the internal controller failing, the system pressure will regulate
according to the parameters of switching point and switching differential. This prevents exces‐
sively high system pressure by, say, a continuous external load signal.
4.6.3 Option F1
Microfilter
Fig. 10 Microfilter
1
Microfilter
2
Ball valve
The microfilter removes aerosols and solid particles from the compressed air.
Condensate is drained off by a ball valve.
4.6.4 Option F2
Activated carbon filter
Fig. 11 Activated carbon filter
1
Activated carbon filter
2
Microfilter (option F1)
3
Ball valve
The activated carbon filter removes oil and hydrocarbon vapours that can be adsorbed by activated
carbon, including solid particles, from the compressed air.
It is alwasy used together with a microfilter.
4
Design and Function
4.6
Options
24
Service manual Screw compressor
Aircenter SX 3/7.5 SIGMA CONTROL BASIC
Number: 9_6945 01USE
