Bacharach PCA 2 24-9448 - Manual (Page 43)

Instruction 24-9448 4-9
Operation
4.8 Ending a Combustion Test
WARNING! Burn Hazard. Do not touch the probe after
removing it from the stack. Allow the probe to cool before
handling (about 5 minutes).
1. Remove probe from stack.
2. Allow the pump to run untl all combuston gases have been flushed
from the analyzer as ndcated by the O
2
readng returnng to 20.9%.
4.9 Emptying the Water Trap
The Water Trap / Flter Assembly removes
stack-gas condensate, and also prevents soot
from contamnatng the nternal components
of the analyzer.
IMPORTANT: Use the Water Trap /
Filter Assembly in a vertical position
with the gas-flow arrow pointing up as
shown in the illustration to the right.
Empty the water trap chamber after each
combuston test, or stop the test and empty
the chamber f the lqud condensate level ap-
proaches the tp of the rser tube.
To empty the trap, frst pull apart the two
halves of the Water Trap usng a slght twst-
ng moton; empty the water trap chamber;
and then reassemble the trap.
After each combuston test, also check the
Water Trap’s flter element. If t looks drty,
replace the flter per Secton 6.2.
To Gas Port
on Analyzer
Gas
Flow
Do not allow water
level to go above
tip of riser tube
Stack Gas
From Probe
To empty water,
pull apart using
a slight twisting
motion