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OptoAST™ Sample Interface

The OptoAST™ (At Sample Tap) Sampling Interface integrates the AirHead™ Gas Analysis Probe with conventional or NeSSI™ sampling platforms. Traditional analyzers utilize an extractive sampling approach to transport a sample to the analyzer.  This approach is known for its complexity, cost, and poor reliability.  The OptoAST Sample Interface allows real-time, true “pipe centric” analysis which minimizes the challenges associated with process sampling.  Analysis without sample consumption or consumables is realized with the OptoAST Sample Interface.

  • No Sample Transfer Lines Required, No Lag Time, Pipe-centric
  • Conventional Platform Delivers Large Selection of Standardized Components, Familiar Designs, Low Elastomer Content
  • NeSSI™ Platform Delivers Functionality, Standardization, Compact Packaging
  • Can Operate at Process Pressure: Sample can be Returned to Process (low pressure line), No Flare, No Waste, No Disposal
  • Compatible with Integrated Calibration / Validation Gas Input
  • Optional Dynamic Reflux Sampler (OptoDRS™) for Streams with High Particulate Levels, Condensables, or Temperature
OptoAST Sample Interface
Maximum Fiber-optic Cable Distance:
490 ft (150 m)
OptoAST Sample Interface:
Typical Dimensions (Conventional): W x H x D
36.0 x 21.0 x 13.5 in
(915 x 535 x 345 mm)
Typical Dimensions (NeSSI): W x H x D
28.0 x 23.0 x 16.0 in
(711 x 584 x 407 mm)
Weight: 60 lbs (27 kg)
Maximum Inlet Pressure Rating: 3000 psig
Optional Heater Maximum Wattage: 280 W
Process Temperature Maximum: 302°F (150°C)
Product Resources
Conventional and NeSSI OptoAST and OptoDRS Sample Handling Systems

Product Resources
Conventional and NeSSI OptoAST and OptoDRS Sample Handling Systems
Datasheets PDF ODS004

(NeSSI is a registered trademark of the University of Washington)