Spectrex 40/40M Multi IR Flame Detector - Manual (Page 24)

Multi IR Hydrocarbon and Hydrogen Flame Detector User Guide
12 Performance Considerations
Table 5: Welding Immunity Distance
Sensitivity Setting Detection Range Immunity Distance
1 50 ft. (15m) >6 ft. (2m)
2 100 ft. (30m) >12 ft. (4m)
3 150 ft. (45m) >17 ft. (6m)
4 215 ft. (65m) >25 ft. (7.5m)
1.5.4 Visual Indicators
One 3-color LED indicator is located inside the detector window, as shown in
Figure 4. The detector statuses are listed in Table 6.
Table 6: LED Indications
Detector Status LED color LED mode
Fault, BIT Fault Yellow 4 Hz - flashing
Normal Green 1 Hz - flashing
Warning Red 2 Hz - flashing
Alarm Red Steady
Figure 4: Indication LED
Indicator LED