No Sample Conditioning Required

• Normally does not require sample stream temperature control
• Process stream samples are typically run on lab Raman instrument at room temperature (~ 21°C)
  • Chemometric models are then transferred to an online analyzer
    • Stream temperature may be > 200°C
• Unlike NIR’s strong water absorption, Raman scattering is very weak for water
  • No need to remove water via chillers or other water filtration equipment for most online analysis
• Raman is not sensitive to particulates
  • Filtration of sample streams is not normally required
• Depending on type of stream, 1 µ filter can be used
  • Minimizes flow cell window contamination
  • Reduces cleaning requirements  

Intrinsically safe, fiber optic coupled remote sampling cells ATEX and IECEx

• Rated for Zone 0
• Uses proprietary Safe-Laser Interlock™ technology
• Fiberoptic cable coupling lengths – up to 1,000 ft (300 m)
• Flow-\ through sample cell
  • Rated for
    • – 80°C to 250°C
    • Up to 3,000 psi (150 bar)

Typical flow cell maintenance requirement – ~ 2 hours/year/probe  

• Cleaning of probe flow window requires ~ 5 minutes, typically quarterly or semi-annually
  • Eliminates or reduces sample conditioning equipment
  • Greatly simplifies Raman equipment installation
  • Greatly reduces maintenance costs

• Flow sensors alarm to distributed control system (DCS) for
  • No flow condition
  • Grab sample collection time
• Standard wettable surfaces – stainless steel grade 316
• Alloy 825, Monel 400, Hastelloy, and other materials – available upon request

• User friendly features allow for direct insertion of our Raman probes into many process streams
  •   Eliminates need for speed loops and circulation pumps