MSA GM FL5000 - 4 Principles of Operation; LED Operation Mode Definitions

4 Principles of Operation
US FL5000 Multi-Spectrum Flame Detector 13
4 Principles of Operation
The FL5000 is a discriminating Multi-Spectrum Flame Detector, which makes use of infrared sensors for different IR
wavelengths and characteristics. This combination provides a flame detection system, which is highly immune to false
alarms.
The advanced flame detection algorithm classifies the output signals from the detector as either fire or no-fire. The unit
then produces the following output signals:
• 0 to 20 mA signal (3.5 or 1.25 to 20 mA with optional HARTprotocol)
• INSTANT ALARM relay contact
• SUSTAINED ALARM relay contact
• FAULT relay contact
• RS-485 Modbus output
NOTE: Refer to 5 Installation for more information on detector outputs.
NOTE: FL5000 device firmware version is available for viewing via HART Communications, Flame Connect App, or
FL5000 Tunes.
4.1 LEDOperation Mode Definitions
Four light emitting diodes (LEDs) are visible on the front detector window. These LEDs provide a visual indication that
corresponds with the detector’s outputs. The following LED flashing sequences indicate various operating conditions:
Device Status Standard Mode
No Power ALLLEDs OFF
Power up ALL LEDs Blink alternately for 15 seconds
Ready
Green LED ON with heartbeat (5s ON, 0.5s OFF)
Yellow LED OFF
RedLED OFF
Blue LED OFF
Instant Alarm
Green LED OFF
Yellow LED OFF
RedLED Blinking slowly (1 Hz)
Blue LED OFF
Sustained Alarm
Green LED OFF
Yellow LED OFF
RedLED ON
Blue LED OFF
COPM Fault
Green LED OFF
Yellow LED Blinking slowly (1 Hz)
RedLED OFF
Blue LED OFF