TDL H2S Analyzer

AccuLase-GPA™ TDL H2S Analyzer

AccuLase-GPA™ is a tunable diode laser (TDL) analyzer that measures 0 to 500 ppm H2S. This analyzer is designed for specific natural gas and refinery applications. AccuLase is backed by 40 years of experience in the natural gas industry.

AccuLase-GPA™ uses a proprietary measurement cell that detects H2S down to 0.15 ppm, rivaling the capabilities of lead-acetate tape technology. AccuLase-GPA™ is specific to H2S without methane, CO2, or benzene interferences. Since AccuLase-GPA™ does not require a scrubber system, the response time is 30 seconds. AccuLase-GPA™ can measure up to 4 streams.

AccuLase-GPA™ requires minimal hands-on maintenance. The only utility required is 80 watts DC or 100 watts AC. AccuLase-GPA™ is CSA Div. 1 & Div. 2 certified with secure, remote access using a local area network web-browser GUI.

Are you looking to avoid pipeline network “lock-out,” corrosion, or off-spec product? Do you need to automate custody transfer validation or better ensure contractual/regulatory compliance? Then AccuLase is the analyzer you need for operational certainty.

Download Specifications PDF

Talk to a Galvanic Applications Expert

Measurement Certainty

0.15 ppm LDL Sensitivity Every 30 Seconds
  • Proprietary Herriott Cell

No Background Scrubber Required
  • On-Board Pump Prevents Methane / CO2 Interferences

Multi-Stream Up to 4 Pipelines
  • Cost-Effective Solution for Custody Transfer

Minimal Hands-On Maintenance
  • No Consumables, Automatic Calibration

Certified for Hazardous Areas
  • No Purge or Instrument Air Required
Self-Diagnostic Alerts
  • Alarms Automatically Triggered

Key Applications

Natural Gas Pipeline
Natural Gas Processing
Refinery / Petrochemical

Available models

AccuLase-GPA TDL H2S Analyzer ATEX / IECEx Div. 1 Div. 2
Power Option(s) 24 VDC or 90-240 VAC 24 VDC or 90-240 VAC 90-240 VAC
Power Consumption 80 Watts DC or 110 AC 80 Watts DC or 110 AC 230 Watts AC
Enclosure Cast Aluminium Cast Aluminium Painted Steel or Stainless Steel
Weight / Dimensions 36" x 40" x 11" / 190 lbs. 36" x 40" x 11" / 190 lbs. 52" x 25" x 13" / 100 lbs.

Download Specifications PDF

Talk to a Galvanic Applications Expert

Look Closer

  • AccuLase-GPA™

    Simple Sample Conditioning

    Panel-Mounted Pressure Regulation and Filtration Ensure Sample Meets Analyzer Requirements

  • AccuLase-GPA™

    Advanced Laser Assembly

    Includes a Proprietary Herriot Cell and On-Board Pump For Maximum Sensitivity

  • AccuLase-GPA™

    Secure Remote Access

    Local Area Network GUI Runs on Any Web Browser for Safe Remote Analyzer Control.

  • AccuLase-GPA™

    Large Local Display

    5.7” Color LCD Display With Extendable Keypad For Safe Operation in Div. 1 Areas.