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Pressor sensor
- Pressure sensor 4-20mA
• 2 wires (4-20mA / +24V)
• 3 wires (0V / 4-20mA / +24V)
- Pressure sensor 0-10V
• 3 wires (0V / 0-10V / +24V)
Set value control
- Adjustment of set value by potentiometer
- Adjustment of set value by external control
ATTENTION!
Take care to isolate the bare end of the wire to be
disconnected from terminal 2 and coming from the
potentiometer.
ON / OFF Pump
The converter is equipped with a relay contact to
indicate the drive OK (Closed when power applied
and drive OK, Open when out of power or drive
failure).
The remote control allows the switching On or Off of
the pump (free contact), this function has priority on
the others.
This remote control isn't set at the state of delivery
(shunt present).
If you want use the remote control, remove the
shunt and replace it by a free contact
Example:
Float switch, pressure gauge for dry-running...
Installation and operating instructions -
1
2
0V
4-20mA +24V
Sensor
0V
Sensor
1
2
3
1
2
Potentiometer
Wire colors:
1
2
0-20mA
External control
or
0-10V
External control
1
2
3
4
WILO-HELIX VE 1~
3
4
5
6
7
8 9
or
0-10V
+24V
4
5
6
7
8 9
3 4 5
6
7
3
4
5
6
7
8
1
2
3
4 5
0V
Potentiometer
Insulate the end of the
0V
remaining wire
Contact: 240V-2A AC
Not used
41 42
Failure contact
5
6
7
8
9 10 11
Remote control
English
10 11
10 11
9 10 11
6
7
33
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