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Initialisation Time : 70 seconds. On power up red and amber lights flash
momentarily to show they are operational.
Operating Temperature : -10°C to 40°C
Humidity Range : 15% to 95% R.H. (non-condensing)
Audible Alarm : 85dB(A) at 3m minimum
Self Diagnostics : Horn beep and amber fault light flashes every 40 seconds if a
sensor fault is found.
Tamperproof : Ei225EN - Screwdriver needed to unscrew unit from wall.
Mains cover over terminal block screw must also be removed.
Ei220EN - Screwdriver needed to unscrew unit from wall.
End of Life Indication: Amber light flashes every 45 seconds after 6 years to
show the unit must be replaced.
CO Alarm Memory: : A unit will indicate if it has been in alarm previously by
flashing the red light for 2 seconds every 40 seconds (2
flashes for 50 ppm CO, 4 flashes for 100 ppm CO and 8
flashes, for 300 ppm CO). When the test button is
pressed the red light flashes as per table B and also
indicates the previous CO alarm level detected. The
memory is cleared by holding down the test button until
the red light stops flashing or if the unit is unpowered.
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