Bacharach PCA® 400 Active Sample Conditioner

Bacharach PCA® 400 active sample conditioner is used to enhance the performance of the PCA 400 Combustion and Emissions Analyzer in heavy industrial and commercial settings. The PCA 400 provides accurate readings for CO, O2 and NO with a standard probe.Bacharach also offers optional Viton™ tubing with the sample conditioner to eliminate sample dropout, ensuring accurate results in applications where NO2 and SO2 measurements are necessary.

The sample conditioner removes water vapor from the stack gas sample, preventing the formation of water droplets inside the analyzer’s probe hose. The sample conditioner prevents water in the sample hose that could potentially absorb a portion of the gas sample and result in lower than actual readings of NO2 and SO2.

The water extracted from the gas sample is pulled out of the thermoelectric (Peltier) cooler and into a water catch pot.The dry, conditioned flue-gas sample is then passed through to the Bacharach PCA 400 for analysis, ensuring a clean, dry, accurate air sample. This also prevents water passing into the instrument and possibly damaging the sensors or other components.


  • Keyed connection to PCA® probe and hose
  • Built-in temperature controller
  • Built-in particulate filter with inspection window
  • Built-in catch pot
  • Direct temperature and draft signal passthrough to the PCA400
  • Self-contained design


  • Quickly creates a rugged, sturdy connection
  • Maintain cooler temperature above dewpoint
  • User can easily see when it’s time to change the filter
  • Ensures a dry sample, every time
  • Allows analyzer to perform all tests while the sample conditioner is connected
  • Compact, easy set-up and use


Dimensions W x L x H 3.2 in x 6.0 in x 6.0 in (81 mm x 152 mm x 152 mm)
Weight 10 oz (284 g)
Control Temperature 41° F nominal cooler temperature (5° C)
Catch Pot Capacity 35 ml
Power Supply AC/DC adapter, 100-264 VAC input, 15 V, 90 W DC output
Storage Temperature 14° to 122° F (-10° to 50° C)
Storage Humidity 10% – 90% RH, non-condensing
Operating Temperature 41° to 104° F (5° to 40° C)
Operating Humidity 10% to 90% RH, non-condensing

Ordering Information

P/N Description
0024-8558 North American sample conditioner kit. Includes sample conditioner, replacement filters (3 pk.) and NorthAmerican outlet power supply.
Accessories and Parts
0007-1658 Inlet Filter, 30 Pieces
0024-1753 Inlet Filter Cap (Requires 0105-5100)
0019-3345 Catch Pot (Requires 0005-5127)
0024-1763 Power Supply, 100-264 VAC, 15 VDC, 90 W
0024-1787 Replacement O-ring Kit

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