FGD FlameSpec IR3-H2-HD - 4.2 Current Output (0-20 mA) Wiring

FlameSpec IR3-H2-HD User Manual
F140V0020.03
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4.2 Current Output (0-20mA) Wiring
The detector’s 0-20mA current output can act as both a source or a sink transmitter and can be 3-
wire or 4-wire connected.
The following drawing shows how to wire the detector to act as a current source isolated transmitter
(4-wire connection):
FIGURE 4 – SOURCE 4-WIRE SCHEME
The following drawing shows how to wire the detector to act as a current sink isolated transmitter
(4-wire connection):
FIGURE 5 – SINK 4-WIRE SCHEME
Detector
1
2
3
4
24VDC
Return
Return
24VDC
Detector
1
2
3
4
Power
24VDC
Return
Return
24VDC
Controller
Controller
Power