8
FRESH AIR PURGE
NOTE
Each time the analyzer is turned on it will perform a 60 second air purge, this is to clear the gas
sampling path (including probe, if connected). For these reasons it is very important that the analyzer
be in
outside fresh air
when powered on.
STATUS
FLUE 1
AUX
FLUE 2
TEMP
Combu
stion Analy
zer
C161
CO
C
O2
T
EM
P
MEASURING FLUE GASES
After the initial countdown is finished and the analyzer is properly setup, put its’ flue probe in the appliance’s sampling point. The tip of
the probe should be at the center of the flue. Use the flue probes depth stop cone to set the position.
With balanced flues, make sure the probe is positioned into the flue so no air can “back flush” into the probe.
CAUTION!:
Ensure the flue probe handle does not get hot!
20”
Boiler
Flue
CO OVER-RANGE PROTECTION PUMP
The analyzer’s intelligent protection system will automatically activate the protection pump once an over-gas condition is detected
(see specification table for detection limits). When activated the main sampling pump will be shut down, allowing the sample system
to be purged with fresh air. Once readings have returned to a safe level, the protection pump will shut down and the main pump will
reactivate.
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