Thermo Model 797 Dilution System

The Model 797 Dilution System performs four critical functions to prepare the sample from the stack, so that it can be measured accurately and precisely by the analyzer.  The system uses an air driven aspirator which extracts the sample from the stack.  it is then passed conseculatively through a coarse and fine particulate filter, a preselected glass or quartz critical orifice and diluted with the air from the aspirator.  This process has now reduced the dew point of the stack sample to below that of the ambient air. 

- Low cost installation, maintenance and operation
- Low extractive flow rates, promotes loong filter life
- No need for heated sample line in most cases
- Diluted sample is transported at positive pressure
- No moving parts anywhere in the system
- Can be used in explosion proof areas
- Easy dynamic in-situ calibration at total dilution system
- Can be used with any exisiting ambient air analyzer
- Manual or optional automatic blow back, backflushes coarse filter
- Optional probe heater

Available in several corrosion resistant materials

For availability and recommendations, please call us at 800.399.4236 or email a Sales Engineer. Or click on the RFQ link to submit project details.