HF197AEN_v0501_04
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4.4.2.
VOLTAGE SELECTION SENSOR SUPPLY
For Intrinsically Safe applications: read chapter 5.
Type PB / PC / PX (AP) - battery powered and output loop-powered applications:
Terminal 11 provides a limited supply voltage of 3.2 V DC which is not suitable for analog sensors.
Type PD / PF / PM: Sensor supply: 3.2V, 8.2V, 12V or 24 V DC:
With this option, a real power supply for the sensor is available. The sensor can be powered with
3.2, 8.2, 12 or 24 V DC.
Total power consumption PD: max. 50mA@24V and PF / PM: max. 400mA@24V.
The voltage is selected with the three switches inside the enclosure.
Fig. 9: switch position voltage selection (type PD / PF / PM).
Switch positions
SENSOR
A
SENSOR
B
VOLTAGE SELECTION
SWITCH
1
VOLTAGE
SWITCH
2
VOLTAGE
SWITCH
3
SWITCH
4
VOLTAGE
internal
3.2 V DC
on
on
8.2 V DC
external switch
3+4
on
off 12
V
DC
off
off 23
V
DC
Function switch 1:
voltage selection sensor A - terminal 11.
Function switch 2:
not
available.
Function switch 3+4:
the combination of these switches determine the voltage as indicated.
Do move switch 1 and / or switch 2 to the OFF position to enable the
selected voltage with switch 3+4.
