FireAngel CO-9D - Page 12

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In both modes you will notice a
symbol appear briey in the top left hand
cornerofthescreenonceeveryminute.This
isanadditionalindicationtoshowyouthat
thealarmisoperatingaswellastheashing
greenLED.
ToswitchbetweenCOandtemperatureview,
simply press the Test/Mode button briey.
The unit will also soundwhen pressingthe
button to switch between the two display
modes.
You will also notice that when switching
between modes the display will change
slightly,thisisbecausethealarmisdisplaying
the Peak Level CO reading that it has
recordedinthelast4weeks,pleaseseethe
followingpeaklevelreadingfeaturesection
forfurtherdescription.
NOTE: If the alarm is in temperature
viewanddetectsCOitwillautomatically
switchbacktoCOdisplaymode.
Power pack, sounder and circuitry test
PressingtheTest/Modebuttonwillalsotest
thepowerpack,sounderandcircuitryofthe
alarm.TheunitwillsoundandthealarmLED
below will illuminate red. You should
performthistestonceperweek.
Peak Level Reading feature
Thealarmwillrecordthehighestreadingof
COthatishasdetectedinthelast4weeks.
This information is useful if your alarm has
soundedsoyoucanseethehighestlevelof
COdetectedduringthattime.Itisalsouseful
tocheckperiodicallytoseeifareadablelevel
ofCOhasbeendetectedforashorttime,but
notlongenoughtotriggerafullalarm.The
peaklevelreadingisshownbrieyeverytime
youpresstheTest/Modebuttonandwilllook
somethingliketheimagebelow.
NOTE: It is possible and quite normal
for the peak level to remain at 0ppm,
i.e.thissimplymeansthatthealarmhasnot
detectedanyCOinthelast4weeks.
ThePeakLevelreadingwillberesetto0ppm
whenever a Sensor Test is carried out. (See
thenextsectionforSensorTest).