
1
PD
2
3
4
5
6
7
P_DFI_0005_SW_2
PD
6
5
4
8
A)
B)
Fig. 4: Hydraulic system of the DulcoFlow
®
. A)
discharge-side, B) suction-side
1
Back pressure valve
2
Manometer (recommended)
3
Hydraulic Damper (optional)
4
DulcoFlow
®
5
Overflow device (optional)
6
Metering pump
7
Storage tank
8
Foot valve
PD
1.5 ... 16 bar
20 ... 30 cm
P_DFI_0006_SW_2
PD
1.5 ... 16 bar
20 ... 30 cm
A)
B)
Fig. 5: Hydraulic installation parameters. A) dis‐
charge-side, B) suction-side
Clarify with "Technical Support" at head
office whether the flow meter can also
be installed on the suction side in a
special case.
7.3 Installation, electrical
WARNING!
Danger of electric shock
The use of a residual current circuit
breaker drastically increases survival
chances should persons come into con‐
tact with the mains voltage due to an
electrical accident.
–
Always fit a residual current circuit
breaker on-site.
A metering pump, monitor, PLC or other
devices can be connected to the flow meter.
The following alternative electrical outputs are
available via cable:
n
Current output (identity code characteristic
"signal output" "1"):
n
Counter output (identity code characteristic
"signal output" "2"):
n
Current output and counter output (identity
code characteristic "signal output" "3"):
n
Controlled pump output (identity code
characteristic "signal output" "4"):
Assembly and Installation
17