S+S Regeltechnik PREMASGARD 1140 Notice D'instruction page 12

G
®
PREMASGARD 1140 ⁄ PREMASREG
Mounting diagram
(Thor 2)
(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.
Connecting diagram
Output:
0 -10 V
-
230V AC
+
24V AC/DC
®
(B)
PREMASGARD
PREMASREG
with ⁄ without Display
-
PLC
+
PC
1 2 3 4
1141
PREMASGARD
PREMASREG
(C)
® 1140 Connecting diagram
®
1141 Output:
4 - 20 mA
230V AC
12
®
1140
® 1141
- -
+
+
resistance
24V DC
1 2 3 4
Rev. 2016 - V11 GB
PREMASGARD ® 1140
with ⁄ without Display
PLC
Working