Used for monitoring gaseous emissions with ambient air analyzers

Continuous In-Situ sample extraction using our dilution system offers many advantages over In-Situ monitors and other extractive techniques.

Product Details

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. It prepared the often warm, wet, sticky and particulate loden sample, so that it can be transported via an unheated line to the analyzer up to 100m (300 feet) away.

Advantages

• Low cost installation, maintenance and operation
• Low extractive flow rates, promotes loong filter life
• No need for heated sample line
• 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
• Made of corrosion resistant materials
• Manual or optional automatic blow back, backflushes coarse filter
• Optional probe heater