Bacharach 24-9415, 24-7224 User Manual
Introduction
The Bacharach Flue-Gas Sample Conditioning System consists of the
following components:
• Probe with Peltier Cooler
• Condensate Pump with Water Trap
• Power Supply
The function of this system is to remove water vapor from the ue-gas
sample, thus preventing the formation of water droplets inside the
probe hose. If water droplets were to form inside the hose, a portion of
the gas sample could be absorbed by the water, thus resulting in lowerthan-actual readings of NO2 and SO2.
Instruction 24-9415
Flue-Gas Sample
Conditioning System
P/N 24-7224
Rev. 5 – June 2005
Water vapor is removed from the ue-gas sample by passing the sample
through a Peltier Cooler where the sample is chilled, which in turn,
causes the water vapor contained in the gas sample to be removed from
the sample.
The water that was extracted from the gas sample is then pumped out
of the Peltier Cooler and into a water trap.
The now dry, conditioned ue-gas sample is then sent to its associated
combustion test equipment for analysis.
Figure 1. Flue-Gas Sample Conditioning System
Probe w/ Peltier Cooler
Power Supply
Pump
w/ Water Trap
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Technical Data
Probe:
Standard Length ......................................................... 11.5 in (295 mm)
Optional Lengths ............................................................. 7 in (180 mm)
19.5 in (500 mm)
39 in (1000 mm)
Peltier Cooler:
Inlet Sample Dew Point.......................................... 149 °F (65 °C) max.
Outlet Sample Dew Point .................18 °F (10 °C) min. below ambient
Cooling Power ................................................................................. 10 W
Environment Temperature .............................32 to 104 °F (0 to 40 °C)
Weight ................................................................................8.5 oz (240 g)
Condensate Pump:
Sample Flow Rate ..........................................................1.5 LPM @ STP
Length of Hose ...................................................................... 6.6 ft (2 m)
Reservoir Storage ........................................................................... 50 ml
Environment Temperature .............................32 to 104 °F (0 to 40 °C)
Weight ..............................................................................12.7 oz (360 g)
Flue Gas Sample Conditioning System
Power Supply:
Input .............................................................. 100 to 240 VAC, 50/60 Hz
Output ............................................................ 9 VDC, max. @ 4 A, max.
Equipment Setup
Refer to Figure 2. If not already done, attach the Peltier cooler to the
probe assembly by rst removing the plastic end cap from the rear of
the probe, and then inserting the cooler’s inlet connector, ensuring rst
that a lter is present between the cooler and probe.
Attach the pump’s inlet hose to the bottom of the Peltier cooler. Water
that is condensed from the ue-gas sample will be pumped into the condensate pump’s reservoir through this hose. Note that the condensate
pump can be placed in an upright, horizontal, or hanging position. A
magnet mounted in the base of the pump allows the pump to be attached to overhead ductwork.
Connect the power supply’s DC output connector to the condensate
pump; then connect the condensate pump’s DC output power connector
to the Peltier cooler. The Peltier cooler and its associated condensate
pump are started by plugging the power supply into a source of AC
power that is between 100 and 240 VAC, 50/60 Hz.
Connect the probe assembly’s stack-temperature thermocouple con-
nector, pressure tting, and ue-gas tting to the combustion analyzer
per the analyzer’s instruction manual.
2 Bacharach, Inc. Instruction 24-9415
Flue Gas Sample Conditioning System
PELTIER
COOLER
PROBE ASSEMBLY
PUMP
POWER SUPPLY
100 – 240 VAC
50/60 HZ
Connect to
Combustion Test
Equipment
STACK TEMP.
THERMOCOUPLE
PRESSURE (Blue)
FLUE GAS (Yellow)
Figure 2. Equipment Setup
Instruction 24-9415 Bacharach, Inc. 3
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