ELRO PK4910, Instruction Manual

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6. Test if the device works properly by pressing and holding the test/mute button for
approximately 3 seconds. If the device is working properly, it will beep four times and flash red.
More tips on how to install your carbon monoxide detector? Go to www.elro.eu
See back page (cover) for drilling template for vertical installation!
Functionality
Mode Light signal Audio signal LCD display Explanation
Standby Green flashes 1 x
per 40 sec.
No sound CO level, temperature Detector functions
correctly
Test
Red flashes 4 x
quickly, followed
by 5 sec. short
break
4 x quickly, followed
by 5 sec. break
888 PPM
Detector functions
correctly
CO alarm Red flashes 4 x
quickly, followed
by 5 sec. break
4 x quickly, followed
by 5 sec. break CO level Detector has detected
carbon monoxide
CO alarm mute Red flashes 1x per
40 sec.
No sound CO level, crossed-out
microphone Alarm signal is muted
CO alarm memory
Green flashes 3 x
per 40 sec.
No sound “AL”
The detector has issued
a CO alarm in the last
48 hours
Low battery
voltage Yellow flashes 1 x
per 40 sec.
1 x per 40 sec. Symbol low battery Low battery voltage,
replace device asap
Low battery
voltage mute Yellow flashes 1 x
per 40 sec.
No sound Symbol low battery and
symbol crossed-out
microphone Low battery warning
muted for approx. 10 h.
Siren error Yellow flashes 2 x
per 8 sec.
No sound "Err" Siren error detected,
replace device asap
Sensor error Yellow flashes 2 x
per 8 sec.
2 x per 8 sec. "Err" Sensor error detected,
replace device asap
End of life Yellow flashes 3 x
per 40 sec.
3 x per 8 sec. "End" End of life, replace
device asap
Standby
In the standby mode, the CO level (if this is lower than 20 ppm it will display 0) and the room
temperature are shown, in an alternating manner. If the CO level exceeds 20 ppm, only the CO
level is displayed. This detector is equipped with a night mode, which means that the standby LED
is automatically switched off in dark areas.
Alarm
If the CO level in the room is too high, the carbon monoxide detector switches to the alarm mode
according to the scheme below.
•
0 30 – 0 49 PPM: Alarm signal after 120 minutes
•
0 50 – 0 99 PPM: Alarm signal after 60 - 90 minutes
•
100 – 299 PPM: Alarm signal after 10 - 40 minutes
•
> 300 PPM: Alarm signal within 3 minutes