Precisive® 5-253
Acid and Sour Gas Analyzer

photo - Precisive 5 Analyzer

Precisive® 5-253 is a real-time hydrocarbon gas analyzer calibrated for on-line acid or sour gas composition monitoring and heating value analysis. This package is optimized for multi-component gas product analysis containing C1-C6 alkane gases, plus high-concentration CO2 and H2S, with optional NH3 and H2O channels. Offering a fast-response alternative to gas chromatographs. Additional hydrocarbon measurement capabilities over traditional UV analyzers in sulfur recovery applications including Gas feed streams and plant inlet analysis through to Sulfur recovery process monitoring and natural gas refining/sweetening process monitoring.

What are your analytical needs?
Download this questionaire and
return it to MKS Precisive for a
complete application assessment.

Features & Benefits:

  • A single all-optical analyzer for C1-C6 hydrocarbons, H2S plus hydrocarbon and CO2 measurement
    Complete feed stream analysis with a maintenance-free analyzer that requires no carrier gas
  • Analysis in seconds
    Continuous measurement instead of batch handling
    Minimized sampling
  • Speciation by Tunable Filter Spectroscopy (TFS) technology
    Virtually no cross-interferences
    Full C1 through C6 hydrocarbon speciation
    Optional NH3 and H2O measurement for an 11-channel analysis with a single all-optical analyzer
  • Flow-through sensor design
    No sensitivity to pressure and flow variations
    Light source and detector stability proven in hostile
    applications from drill sites to "sooty" refineries
  • Compact, outdoor-rated, low-power
    Well suited for fixed and transportable applications
    NEMA4X, IP66 rated, 24VDC or 100-250VAC power

Measurement Channels:

H2S, CH4, C2H6, C3H8, i-C4H10, n-C4H10, C5H12, CO2, optional NH3 and/or H20, BTU Calorific/heating value, Wobbe index


SRU (Sulfur Recovery Units), feed-gas analysis, acid-gas removal, tail-gas treatment


Purchase now or request a quote:
Enter a quantity and click "add to cart"

Part NumberPriceQTY
Precisive® 5-253Quote Only

Documents & Downloads:

Precisive® 5-253 data sheet

Need help?

Contact an Application Specialist by sending an email to MKS Instruments or call 978-645-5500.