MEASUREMENTS - Flue Gas (continued)
Insert the flue probe into the sample hole of the device under test. The probe tip
should be in the middle of the flue pipe or exhaust stream.
Ensure the In-Line Filter / Water Trap hangs below the analyser in the proper vertical
position when readings are being taken. Failure to comply reduces the effectiveness of
the water trap and may result in damage to the instrument. Refer to the pictures below
for correct and incorrect use.
WARNING:
- Should the CO reading rise above 2,000ppm a continuous series of Alarm
Beeps will be heard. The Probe should immediately be disconnected from the
instrument and the instrument returned to a clean air environment. This Alarm alerts
the user that there is a high concentration of CO, and this procedure will protect the
sensors within the instrument. The alarm level can be changed. Please see Appendix D
Make sure to check the water trap periodically during testing to ensure it does not fill
with condensate and empty it as necessary. If the filter begins to fill during a test, open
the lid and empty out the condensate. After closing the lid, allow readings to stabilize
again.
IMPORTANT:
The water trap is fitted with a water block filter (p/n A796-D) in the lid to
prevent water from flowing down into the pump. If the water trap fills the water block
filter will stop the flow to the analyzer and FLO ERR will display. The water trap should
be emptied immediately if this happens. The water block filter may need to be dried out
or replaced before testing can resume.
15
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