Winn-Marion Companies

Not your AVERAGE Representative Firm

Automation Service

Automation Service

  • Turnkey Automation
  • Network Design
  • Solar Packages
  • Calibrations
  • Pressure Control
  • Learn more about Automation Services at Winn-Marion

Controls Integration

Controls Integration

  • Emissions Monitoring
  • Analyzers
  • Speed & Load Control
  • Engine Control
  • Governor Upgrades
  • Learn More About Controls Integration Services at Winn-Marion

Sales, Assembly & Repair

Controls Integration

  • Heat Tracing
  • ESD Valves
  • Valve Assembly
  • Flow Meters
  • Recorders
  • Learn More About Products, Assembly, Repair at Winn-Marion

Customer Testimonial

  • Game Changer

    We found the transition to Freelance went very smoothly. The product and support have been exceptional. It has opened windows into our plant that we never had. We’ve been very satisfied with the ABB system.
    Instrument & Controls Lead - Gas Plant
    May 8, 2012
  • Nice software

    Sales, installation, troubleshooting… Winn-Marion has become our one-stop shopping partner.
    Production Superintendent - Gas Production Company
    Apr 18, 2012
  • You can't beat the price

    Winn Marion's retrofit eliminated a whole lot of linkage, probably 6 joints, and wherever you have a joint you have problems. Right now both the turbines are running the best I have ever seen in my 30 years of maintaining them.
    Maintenance Crew - Gas Plant
    May 7, 2012
  • Our BFW turbine retrofit, performed by Winn-Marion, couldn’t have gone any smoother or been more successful.
    Maintenance Manager - Power Generation Company
  • Great people to work with at Winn-Marion!
    Purchasing - Brewing Company
  • Your local inventory of Totalflow, PGI and AII allow us to pick up parts on the same day we find a problem and get our systems running again.
    Field Supervisor - CBM Production Company

More Solutions


Natural Gas Online Analyzer


AII GPR-1500 Trace PPM Oxygen Analyzer

Advanced Instruments' (AII) GPR-1500 AIS-LD ATEX Trace PPM Oxygen Analyzer is designed exclusively for natural gas applications (oxygen analysis in inert, hydrocarbon, helium, hydrogen, mixed and acid (CO2) gas streams). This natural gas online analyzer features an innovative sample system that efficiently removes large amounts of free liquids from gas streams. It is an advanced galvanic trace PPM oxygen sensor capable of precisely measuring oxygen concentrations ranging from 100PPB - 1% over a 24-month operating life, menu driven controls, and two field selected alarm set points.


  • Accuracy: less than 2% of FS range under constant conditions
  • Meets the recognized intrinsic safety standards for use in Class 1, Division 1, Group C, D hazardous areas
  • Two user configurable alarms: magnetic coil relays rated 3A at 100 VAC
  • Field programmable alarm time delays; alarm bypass for calibration and system fail alarm
  • Calibration: air or certified span gas of O2 balance N2 approximating 80% of range above analysis range recommended
  • Controls: Water resistant keyboard; menu driven range selection, calibration and system functions
  • Enclosure: Aluminum ex-proof, fiberglass NEMA 4X, 16x9x6", 20 lbs.
  • Pressure: Inlet - regulate to 5-30 psig to deliver 1-2 SCFH flow; vent - atmospheric
  • Power: 12-24 VDC (suitable for solar power systems) or 100/230 VAC

Winn-Marion Locations

Contact Us at any of the Winn-Marion Locations:
Denver, CO - 303.778.6767
Salt Lake City, UT - 801.676.0155 | Phoenix, AZ - 480.968.9344 | Billings, MT - 406.259.9234 | Pittsburgh, PA - 412.319.7392
Roosevelt, UT - 435.725.0082 | Farmington, NM - 505.326.4069 | Evans, CO - 970.339.9211 | Gillette, WY - 307.686.9196 | Arnegard, ND - 701.586.3184