10/20
Fixing Instructions Doc. version 2
FV400
Triple IR Flame Detectors
4-20 mA Sink
Fig. 8: 4-20mA Sink Wiring Diagram
Fit link HDR1 to connect 4-20 mA- to 0 V.
Ancillary power is required for RS485, Window Heater and Video.
Either use the Main Detector Supply by fitting HDR3 and HDR4 or use a separate Ancillary Supply (see Fig. 11).
Other options can be used at the same time as the 4-20 mA output. See Figs. 10 to 12 for wiring of Ancillary Power, Walk-
test Input, Remote Indicator Output, RS485 and Video Output.
+24V
0V
4-20mA SINK
Monitor current into 0V
HDR1
LINKS
Select SINK
Mode
