Model 3600-I IR3 Flame Detector
Page 22 of 66
1.5.6.1 Optional Latching
Alarms are set as non-latching by default. However, the detector includes a latched alarm output
capability, which operates according to the programmed function.
If selected, upon detection of a fire, the detection signal is latched until a manual reset is performed
(disconnecting the power supply or performing a manual BIT (see
).
Latching affects the Alarm Relay, 0-20mA output, the Alarm LED (the Auxiliary Relay will be latched only
when the programmable function Auxiliary Relay is set to YES.
NOTE:
The Auxiliary Relay is available only in Models with suffix
– 4XXXX and 5XXXX
The 0-20mA is available only in Models with suffix
– 1XXXX, 2XXXX, 3XXXX
1.5.7 Auxiliary Relay as End-of-Line Resistor
The Auxiliary Relay can be used as End-of-Line (EOL) resistance in Models with suffix -4XXXX, and
5XXXX only. In this case, the Auxiliary Relay is active as long as the detector is not in Fault state.