0024-9551
Revision 1
19
PCA
®
400 User Manual
Fig. 3-1:
Water Trap / Filter Assembly
Never allow the water level
to rise above tip of riser tube
during operation.
Stack Gas from Probe
To Gas Port on Analyzer
Ensure that filter is clean.
CAUTION
:
Use the Water Trap / Filter Assembly in a vertical position with the gas
flow arrow pointing up as shown in the illustration above.
Start Analyzer in Fresh Air
Ensure that the analyzer is sampling fresh air during initial 60-second warm-up period.
Pulling a stack gas sample through the analyzer during its warm-up period will not damage
the analyzer, but it will result in incorrect sensor readings, and may result in sensor error
messages appearing after the warm-up cycle completes.
Inspect Water Trap / Filter Assembly
Before each use, inspect the filter element of the water trap / filter assembly. Replace the
filter if it looks dirty. See Replacing the Filter Element
(Section 5.2)
for more information.
Keep Analyzer Above Water Trap Assembly
When sampling flue gas, keep the analyzer above the water trap, and keep the trap in a
vertical position. This will maximize the effectiveness of the trap and keep liquid condensate
from being drawn directly into the analyzer.
(Flue gas condensate can be acidic and very corrosive.
Do not to allow the analyzer’s internal components to come in contact with condensate.)
Don’t Allow Water Trap to Become Full
When liquid condensate is seen inside the water trap, empty the trap before it becomes full.
See Emptying the Water Trap
(Section 5.1)
for more information.