2.3
Terminal diagram
Water meter with pulser (IWZ)
2
Conductor Color Code
bl
Blue
8
bn
Brown
ye/gn
Yellow/Green
bl
Black
wt
White
8
gr
Grey
04.01.13
8
pw m
Explanation of the abbreviations used in the terminal diagram
Please note: The switch settings shown represent the current-free, non-switched state.
extra-low voltage
high voltage
L
N
PE
Pumpe/pump
ps
pwm
Dry-run protection
3
1
2
Execution
As pressure switch
9
3 3
3 4
G N D
G N D
9
3 3
3 4
9
3 3 3 4
ps
Protective low voltage
Voltage as per markings
Phase
Neutral wire
Protective earth (PE) conductor
Pump motor
Pressure switch
Pulse water meter
Pump
(DS240)
bn
3
u1
bl
v1
2
3
4
w1
(gegn)
1 8
1 9
P E
P E
1 8
1 9
External
pe
1 8
1 9
cable
connect to
housing
r e fill/ d r a in
( 2 3 0 V 5 0 H Z )
1
w2
u2
2
v2
2 0
N
L
2 0
2 0
9