S+S Regeltechnik PREMASGARD 711 Série Notice D'instruction page 12

G
®
PREMASGARD
Mounting diagram
3570 Pa
(A)
TYPES OF MONITORING:
(A) Below-atmospheric pressure:
P1 (+) is not connected but open against atmosphere
P2 (–) connected to inside of duct
(B) Filter:
P1 (+) connected upstream of filter
P2 (–) connected downstream of filter
(C) Ventilator:
P1 (+) connected downstream of ventilator
P2 ( – ) connected upstream of ventilator
Pressure connections at the pressure switch are marked with
P1 (+) for higher pressure and
P2 (–) for lower pressure.
3-wire- PREMASGARD
connection
- -
230V AC
+
+
24V AC/DC
1 2 3
711x
3570 Pa
(B)
® 711x - U 3-wire-
connection
230V AC
PLC
PC
24V AC/DC
PREMASGARD
3570 Pa
(C)
PREMASGARD ® 711x - I
- -
PLC
+
+
PC
1 2 3
12
Rev. 2018 - V26 GB
® 711x
2-wire- PREMASGARD
connection
- -
230V AC
+
+
24V DC
1 2 3
® 711x - I
PLC
Working
resistance