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Model 4020 Total Hydrocarbon Analyzer

The Model 4020 utilizes a flame ionization detector (FID) for the continuous trace analysis of total hydrocarbons (THC) under a variety of different process conditions. The principle of operation is based on measuring the ion current generated when organic compounds are dissociated in an intense hydrogen flame.

The 4020 is ideal for monitoring hydrocarbon contamination in high purity bulk gases. When coupled with Teledyne's unique separation column, the 4020 is also diverse enough to be applied in hazardous locations for the detection of volatile hydrocarbons in cooling water for process leak detection and environmental compliance.

  • Unique sintered stainless steel restrictors control the flow of the sample and support gases to provide a stable, reproducible signal
  • Temperature controlled and insulated sample analysis compartment enhances stable performance
  • Bypass regulator provides quick response to process changes and is strategically placed in the sample flow path to eliminate sample contamination issues.
  • User programmable ranges
  • Standard auto-calibration programming - ideal for unmanned plant conditions
  • Enhanced temperature control of sample compartment for stable, reproducible results
  • Electronic Flame Out Guard circuitry
  • Stainless steel sample system with flexible design to handle either a 100% H2, H2 / N2, or H2 / He support gas fuel mixture
  • Easily accessible pressure and flow control devices
  • Slide out chassis design provides operators with easy access to internal components
  • CE marked
  • X-purged configurations for hazardous area installations available
  • Multiple gas calibration not required
  • Optional rear-mounted calibration valves and fuel solenoid for easy maintentance
  • Monitoring the purity of oxygen, argon, nitrogen and other blanketing gases in the manufacture of microcircuits
  • Monitoring hydrocarbon contamination in air liquefaction and other gas production processes
  • Gas purity certification
  • Detecting trace hydrocarbons in ambient air
  • Detecting atmospheric pollutants
  • Hydrocarbons in cooling tower water for process control leak purposes
  • Monitoring for fuel leakage or toxic solvents
  • Monitoring hydrocarbons in CO2 feed streams in the food / beverage industry


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Teledyne Analytical Instruments • 16830 Chestnut St • City of Industry, CA 91748 • USA