Ningbo Kingdun Electronic Industry Co.,Ltd.
Page 9 of 10
LED indicators
•RedLED-flashing once every 344 seconds: indicates that the smoke alarm device is operating proper-
ly.
•Red LED-flashing: when the test button is pressed, or when the smoke alarm device sense particles
of combustion and goes into alarm (constant pulsating sound), the red LED will flash once per
second. The flashing LED and pulsating alarm will continue until the air is cleared or release test
button.
•Red LED alarm silencer (Hush mode) indication: The red LED will flash once every 10 seconds, indi-
cating the smoke alarm device is in the alarm silence (hush) mode.
•Low battery indication: An intermittent “chirp”with red LED flashes once every 43 seconds: indicates
that the smoke alarm device is low battery, you may press the test button longer time for pause
alarm for 8 hours, but it will reset automatically after 8 hours.
•Fault indication: the alarm occurs every 43 seconds.
•Alarm memory: After alarm is made, the detector will have alarm memory. The green LED will
flash quickly for 3 times every for 43 seconds. So the user can tell if the detector has entered
alarm state from a distance without touching the detector. LED display will quit after 24 hours.
The first time you press the test/mute button after alarm is made, the detector will hint by spe-
cial alarm mode. After releasing the test/mute key, alarm memory will be reset. Then you press
the test/mute button and it will be normal key test.
Alarm silence (hush mode)
During the unit is alarming, you push the test button, it will be paused the unit alarming for approx. 9 mi-
nutes. The red LED will flash once every 10 seconds, it indicates the smoke alarm device is running into the
silence mode.
Smoke alarms devices are conceived to minimize nuisance alarms.
The smoke alarm will automatically reset after approximately 9 minutes, if after this period, particles of
combustion are still present, the alarm will sound again.
The alarm silencer (silence mode) can be repeatedly used until the air has been cleared of the conditioning
causing the alarm.
Caution: Before using the alarm silence (hush), identify the source of the smoke and be certain a safe condi-
tion exists.
Danger: If the alarm sounds, and it is not being tested, it means the unit is detecting smoke, THE SOUND
OF THE ALARM REQUIRES YOUR IMMEDIATE ATTENTION AND ACTION.
Fraud alarm/ false alarms
False alarms can be triggered by the following, for example:
Welding and cutting work,
Soldering and other hot work,
Sawing and sanding work,
Dust due to construction or cleaning,
Water vapour, cooking vapours or odours,
Extreme electromagnetic influences,
Temperature fluctuations, which lead to the condensation of the humidity in the smoke detector.
In the event of works in the environment of the installed smoke detector which trigger false alarms (e.g.
renovation), the detector should be temporarily covered or removed. After completion of the work, the origi-
nal functionality of the installed smoke detector must be restored as described in previous sections.
Should the system report an alarm, please check whether the fire really exists. If so, call the fire brigade.
If not, please check whether the mentioned reasons could have raised the alarm. We would like to point out
that we are not liable for the consequences of false alarms. We do not cover any costs incurred by false
alarms, such as for deployment of police, fire or key services.
Maintenance
This includes at least a check of whether the smoke penetration openings are free (e.g. covers, pollution
