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F-Guard IR3 H2 HD User Manual
4
Operation
The F-Guard-IR3-H2-HD is a triple-IR flame detector that includes a built-in high-definition video camera
module. The video module automatically records video of alarm events and can provide live video of the
detection zone to a screen in the control room.
On power up, the LED on the front of the detector flashes yellow indicating the startup routine has
begun. After approximately 30 seconds, if the startup is successful, the LED turns green, the 0-20mA
output goes to 4mA and the fault relay is closed.
Detector configuration settings can be changed as described in section 2.7.
To restart the detector, cycle the power.
Output Signals
The detector has the following output signals:
Current output (0–20mA) with HART ® 7
Relays (Fault, Auxiliary and Alarm)
Modbus RS-485
Tri-color status LED
T
ABLE
4:
O
UTPUT
S
IGNALS
State
St
at
e
Output
0 – 20mA
Fault Relay
(NC)
Alarm Relay
(NO)
Aux Relay
(NO)
LED
Startup
1mA
Open
Open
Open
Flashing
Yellow
Fault
1mA
Open
Open
Open
Flashing
Yellow
BIT fault
2mA
Open
Open
Open
Yellow
Dirty Window
3mA (
1
)
Closed
Open
Closed (
2
)
Green
Normal
4mA
Closed
Open
Open
Green
Pre Alarm
16mA (
3
)
Closed
Open
Closed (
4
) Flashing red
Fire Alarm
20mA
Closed
Closed
Closed
Red
Notes:
1 – 3mA when “Enable dirty window warning 0-20mA” enabled. 4mA when “Enable dirty window warning 0-20mA” disabled.
2– Closed when “Aux Relay” set to “Dirty Window Warning”.
3 – 16mA when “Enable Pre-Alarm 0-20mA” enabled. 4mA when “Enable Pre-Alarm 0-20mA” disabled.
4– Closed when “Aux Relay” set to “pre-alarm”.