ovg-4

OVG-4

The Owlstone Calibration Gas Generator (OVG-4) is a compact, cost-effective calibration gas system, which can generate NIST traceable, precise, repeatable, and accurate concentrations of chemicals and calibration gas standards.

  • Industrial and scientific vapor generation for all types of gas sensor calibration.
  • Cost savings by replacing multiple, costly gas cylinders
  • Small quantities of target chemicals reduce the risk of dangerous exposure
  • Fast and easy sample replacement removes the dangers associated with high-pressure cylinders
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Overview

The Owlstone Calibration Gas Generator (OVG-4) is a compact, cost-effective calibration gas system, which can generate NIST traceable, precise, repeatable, and accurate concentrations of chemicals and calibration gas standards

Designed for calibration of industrial and scientific gas sensors, the OVG-4 incorporates permeation tube technology and can replace multiple gas cylinders. This results in significant cost and space savings as well as elimination of dangers associated with cylinders. The ability to generate arbitrarily complex gas mixtures makes the OVG-4 Calibration Gas Generator suitable for a broad range of applications from calibration of explosive detectors in military and homeland defense to testing personal monitors in industrial health and safety applications.

OVG-4 Benefits

  • Industrial and scientific vapor generation for all types of gas sensor calibration
  • Cost savings by replacing multiple, costly gas cylinders
  • Small quantities of target chemicals reduce the risk of dangerous exposure
  • Fast and easy sample replacement removes the dangers associated with high-pressure cylinders
  • Accuracy and precision even at very low concentrations with superior long-term stability and repeatability
  • Portable with compact footprint for significant laboratory space savings
  • Reduce setup time and generate blended gas mixtures rapidly
  • Adjust concentrations from parts-per-billion to parts-per-million levels
  • Interface with the Owlstone Humidity Generator (OHG) for realistic environmental testing

What's Wrong with Cylinders?

  • Not suitable for many compounds, e.g., corrosives, explosives, etc.
  • Hazards in high concentrations and high pressures
  • Cylinder and regulator costs quickly escalate with multiple analytes

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Benefits of Permeation Tubes

  • Excellent stability for up to two years of continuous use
  • Traceable to NIST standards
  • Safety–tubes contain only a very small quantity of analyte and operate at low pressure

How to Build Permeation Tubes

How to Calibrate Gas Sensors with OVG-4

  1. Individual permeation tubes are filled with the analyte to calibrate and test instruments, gas analyzers, and sensors (e.g., FTIR, GC).
  2. The permeation tube is placed in the OVG-4, which generates a traceable gas standard for testing and calibration.
  3. That's it. You are now ready to test your sensors/instruments against traceable, precise, and repeatable gas standards.

Customers using OVG

  • cambridge uni
  • us-army
  • us-airforce
  • ge
  • homeoffice
  • cea
  • utc-logo
  • rutheford
  • dstl
  • lgc
  • itri
  • barc
  • csic
  • air-liquide
  • Reliable

    Accuracy and precision even at very low concentrations with superior long-term stability and repeatability

  • Economical

    Cost savings by replacing multiple, costly gas cylinders

  • Safe

    Small quantities of target chemicals reduce the risk of dangerous exposure

  • Simple to Use

    Fast and easy sample replacement removes dangers associated with high-pressure cylinders

  • Space Saving

    Compact footprint for significant laboratory space savings

  • Traceable

    Owlstone permeation tubes are traceable to NIST standards, and are supplied with their own calibration certificates


Photo of OVG-4

Specs

OVG-4's Technical Specifications

Designed for calibration of industrial and scientific gas sensors, the OVG-4 incorporates permeation tube technology and can replace multiple gas cylinders.

  • Technology

    Permeation tubes

  • Available analytes

    >500 including VOCs, environmental gases, explosive and CW agents, and simulants

  • Computer communications

    RS-485 optional

  • Dimensions

    H 262 mm, W 142 mm, D 260 mm

  • Exhaust connection

    ⅛” Swagelok tube

  • Exhaust flow range

    0 ml/min to >3000 ml/min

  • Exhaust pressure

    <30 psi

  • Inlet air

    Regulated air/nitrogen. Free from impurities, -35°C dew point

  • Inlet connection

    ¼” Swagelok quick connect

  • Inlet pressure

    40 psi

  • Output concentrations

    parts per trillion to parts per thousand

  • Power supply – inlet

    100–240V AC

  • Oven Diameter

    40mm

  • Sample Outlet connection

    ⅛” Swagelok compression fittings

  • Oven Temperature

    30–100°C ±0.1°C in 0.1°C increments

  • Sample Outlet flow range

    20–250 ml/min

Learn everything about using permeation tubes. Download "The Complete Guide to Testing Gas Sensors"

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For information regarding pricing and availability get in touch with our team

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