Bacharach Flue-Gas Sample Conditioning System Introduction 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 fl ue-gas 

sample, thus preventing the formation of water droplets inside the 

probe hose. If water droplets were to form inside the hose, a por tion of 

the gas sample could be ab sorbed by the water, thus resulting in lower-

than-actual read ings of NO

2

 and SO

2

.

Water vapor is removed from the fl ue-gas sample by passing the sam ple 

through a Peltier Cooler where the sample is chilled, which in turn, 

causes the water vapor contained in the gas sam ple 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 fl ue-gas sample is then sent to its as so ci at ed 

com bus tion test equipment for analysis.

Product Leadership • Training • Service • Reliability

Figure 1.  Flue-Gas Sample Conditioning System

Probe w/ Peltier Cooler

Power Supply

Instruction 0024-9415

Flue-Gas Sample 

Conditioning System

P/N 0024-7224

Rev. 8 – May 2010

Pump 

w/ Water Trap