User Manual

5
Understanding Indicator and Alarm Signals
Smoke alarms produce the following indicator and alarm signals, depending on
their status condition.
Primary units
Sensor
217E-02
Quiescent condition
indication
Green LED continuously on, Red LED flashes every
40s
Low battery indication
Short audible signal every 40 secs, synchronized with
a single flash of the yellow LED for 30 days
Low battery hush
indication
Flashing yellow LED every 40 secs
Low battery hush time
10 hrs
Alarm Condition
Alarm condition audible
indication output
≥ 85 dB @ 3 mins three long beeps, repeating
Alarm condition visual
indication
Three blinks synchronized with audible alarm
Alarm condition hush
indicator
Device entering the alarm condition: Flashing red LED
every 1 sec
Alarm condition hush time
Smoke alarm: 8 mins
Test Condition
Test condition audible
indication output
≥ 85 dB @ 3 mins, two sets of three long beeps
Test condition visual
indication
The yellow LED flashes once, then the red LED flashes
three times in two cycles
Fault Condition
Smoke chamber fault
indication
Short audible signal every 40 secs, synchronized with
the yellow LED flashes three times
Smoke chamber fault hush
indication
Three flashes of the yellow LED every 40 secs
Smoke chamber fault hush
time
10 hrs