For more information & Technical support:
25
F-Guard UV-IR User Manual
Doc. No. F110V0020.06
4
Operation
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, turn it off and then turn on the power.
4.1
Output Signals
The detector has the following output signals:
Current output (0–20mA) with HART® 7
Relays (Fault, Auxiliary and Alarm)
RS-485
Tri-color 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 Warning
3mA (
1
)
Closed
Open
Closed (
2
)
Green
Normal
4mA
Closed
Open
Open
Green
IR Radiation detected
8mA
Closed
Open
Closed (
3
)
Green
UV Radiation detected
12mA
Closed
Open
Closed (
4
)
Green
Pre Alarm
16mA (
5
)
Closed
Open
Closed (
6
) Flashing red
Fire Alarm
20mA
Closed
Closed
Closed
Red
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– Closed when “Aux Relay” set to “IR Detected”.
4– Closed when “Aux Relay” set to “UV Detected”.
5 – 16mA when “Enable Pre-Alarm 0-20mA” enabled. 4mA when “Enable Pre-Alarm 0-20mA” disabled.
6– Closed when “Aux Relay” set to “pre-alarm”.