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Amphenol SGX Sensortech IR2 Infrared Single Gas Sensors

Amphenol SGX Sensortech IR2 Infrared Single Gas Sensors use the Non-Dispersive Infrared (NDIR) principle to detect and monitor the presence of gases. Individual gases or types of gas can be identified and the concentrations determined by an infrared source with specific filtering on the pyroelectric detectors mounted inside the optical/gas cavity. These sensors are suitable for reliable monitoring of gas levels in general safety applications where the sensor size is restricted and requires a flameproof enclosure for hazardous environments.

Features

  • For detection of the following gases:
    • Carbon Dioxide (IR21)
    • Hydrocarbons (IR22 and IR23)
  • Gas concentration ranges:
    • 0 to 5% Carbon Dioxide (also suitable for 0 to 0.5%v/v)
    • 0 to 100% Carbon Dioxide (also suitable for 0 to 10%)
    • 0 to 100%v/v Hydrocarbons (also suitable for 0 to 100%LEL)
  • 16.6mm or 19.0mm sensor heights available
  • Embedded temperature sensor in some versions for improved temperature compensation
  • Shock-resistant IR Source version available on certain types
  • Diffused gas sampling via mesh
  • Low power
  • Reference channel for self-compensation
  • Special gold plated optical gas cavity for stable signal levels
  • Operational in varying temperatures, pressures, and humidity
  • Fast response
  • Rugged stainless steel construction
  • No moving parts
  • Immunity from ‘poisoning’
  • Reliable fail-safe operation
  • Certified to ATEX and IECEx

Applications

  • Mining
    • Portable systems
    • Fixed systems

Specifications

  • Stainless steel body material
  • Ambient temperature ranges
    • -20°C to +60°C operating
    • -20°C to +55°C storage
  • 30kPa to 130kPa operational pressure range
  • 0 to 95% relative humidity, non-condensing
  • 3VDC to 5VDC supply to detectors
  • 180mW typical power at 5V
  • +5V, 60mA IR source supply
  • 20s maximum response time
  • MTBF (IR source only)
    • >10 years for 5V operation
    • >20 years for 3V operation
  • 6 or 7 pins

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Publicado: 2017-05-15 | Actualizado: 2022-03-23