Kingdun Electronic KD-218A - Low CO Concentration Warning; Testing

Low CO
concentrati
on warning
The Alarm indicator will
flash 4 times with beeps
at a slower speed. Low
CO concentration
warning will be given at
leas
t once every five
minutes and the interval
will be at least 3
minutes.
It indicates low
concentration of CO is
detected.
Tes t i ng
Press the TEST button,
and the Power, Fault and
Alarm indicator will flash
once at the same time. If
the detector
is working
properly, then
one cycle
of alarm will be made. If
there is malfunction, then
fault warning will be
made.
For manual testing.
1.3.1.2 LCD information
The LCD display can show CO concentration, battery level,
fault warning, end-of-life warning, power-up prompt and testing
operation.
1.3.1.3 Power-up prompt
It indicates power-up.
1.3.1.4 Battery level
A) Enough
B) Normal
C) Low
D) Low battery warning will be made.
1.3.1.5 CO concentration
The LCD display shows CO concentration in PPM.
When CO concentration is less than 10 PPM, it shows 0 PPM.
When CO concentration is more than 550 PPM, it shows “Hco”.
When CO concentration is more than 550 PPM, it is very
dangerous.