Status
every
48 sec
x2
every
8 sec
x2
Press and hold button
Action Red LED
(alarm)
Sound
Memory mode
0-24h
>24h +
= LED on solid
= LED ashing
Mode
Power up
Detecting re
Activated
via interconnect
x 10mins
Standby
Testing
(monthly)
Press and hold
button
ActionYellow LED
(fault)
Red LED
(alarm)
Sound
Normal mode
In alarm mode
x 1 x 1
Indicator summary table
= Chirp
= Ramp up to alarm
= Alarm
Twist on
mounting plate
x 1
every
0.5 sec
x 1
every
0.5 sec
x 1
every
0.5 sec
1
every
48 sec
Yellow LED
(fault)
Red LED
(alarm)
What to doWhat it
means
Chirps
Fault modes and Memory indicator
Replace
Alarm
every
48 sec
Low battery
Replace
Alarm
Sensor / Piezo
2
fault
Replace
Alarm
End of Life
when pressing
button
Max Dust
Compensation
has been reached
see Maximum
Dust Compensation
explanation above
There has
been an
alarm in
the last 24 hours
Check
memory mode
table
Flashes as
per fault type
Fault chirps have been
silenced. Rate of the
yellow LED ashing
indicates fault type
If required chirping can be
silenced again by pressing
Silence button
What you hear / see
x2
x1
x2
x3
x4
every
48 sec
x3
every
8 sec
x4
Press and release
button
Pressing Button
on Alarm
detecting re
x1
(1) If you are unsure of the amount of ashes of the Yellow LED you can at any time while a
fault condition exists, press the button. The relevant number of ashes will then be 8s apart.
(2) In the case of a piezo fault, the chirps may be not occur.
(3) The fault indicators will only manifest when the button is pressed
(4) Fault chirps can be silenced for 12 h. by pressing the button.
Notes:
4
3
x1
every
8 sec
x 1
*
* Ei650i and Ei660i models only