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OptoAST™ Sample Interface

The OptoAST™ (At Sample Tap) Sampling Interface integrates the AirHead™ Gas Sampling Probe with conventional or NeSSI™ 3D 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, a product developed in a collaboration between Kaiser and Astute.

  • 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): 36.0 x 21.0 x 13.5 in (915 x 535 x 345 mm) W x H x D
Typical Dimensions (NeSSI): 28.0 x 23.0 x 16.0 in (711 x 584 x 407 mm) W x H x D
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
Optograf Product Flyers

Product Resources
Conventional and NeSSI OptoAST and OptoDRS Sample Handling Systems
Optograf Product Flyers PDF OPF0003

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