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GDS-IR2 Wired Gas Sensor for Hydrocarbons and Carbon Dioxide

Brand: GDS Corporation
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The GDS-IR2 Infrared Gas Sensor uses proven, reliable infrared sensing technology to detect dangerous levels of carbon dioxide or explosive levels of methane, propane and other hydrocarbons.

Designed for especially harsh environments, the GDS-IR is virtually maintenance-free and immune to poisoning or etching by any known gas.

The GDS-IR can be calibrated to read a wide range of combustible hydrocarbons, including methane, propane, hexane, pentane, ethanol, Jet-A, isobutene, propylene and isopropyl alcohol, as well as carbon dioxide to 5% by volume.

The GDS-IR2 sensor is CSA certified for use in Class 1 Division 1 explosive environments, is CSA performance tested and includes a five year operational warranty. The GDS-IR2 is also suitable for use in SIL-2 safety systems.

The GDS-IR2 is manufactured in the USA Applications include refineries, onshore and offshore drilling platforms, fuel loading docks, biogas processing, breweries, wastewater treatment facilities and natural gas storage and distribution.
Features
  • CSA Certified for Class I, Div 1 explosion-proof installations
  • Straight line optical path eliminates need for mirrors
  • Suitable for use in SIL-2 rated safety systems
  • High speed response for critical applications (T50 less than 3 sec)
  • Industry standard 4-20 mA current loop calibrated output
  • Rugged stainless steel construction with no moving parts
  • Heated optical chamber maintains accuracy in cold conditions
  • Operates in constant hydrocarbon and anaerobic atmospheres
  • Ten discrete fault indication values for all failure states
  • Routine span calibration not required for normal operation
  • Random power-up delay reduces initial load on power supply
  • Five year operating life lowers total cost of ownership
  • Multiple gas calibration curves for %LEL and % by volume
  • CSA Certified C22.2 No. 152-M1984 Performance Tested
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The GDS-IR2 Infrared Gas Sensor uses proven, reliable infrared sensing technology to detect dangerous levels of carbon dioxide or explosive levels of methane, propane and other hydrocarbons.

Designed for especially harsh environments, the GDS-IR is virtually maintenance-free and immune to poisoning or etching by any known gas.

The GDS-IR can be calibrated to read a wide range of combustible hydrocarbons, including methane, propane, hexane, pentane, ethanol, Jet-A, isobutene, propylene and isopropyl alcohol, as well as carbon dioxide to 5% by volume.

The GDS-IR2 sensor is CSA certified for use in Class 1 Division 1 explosive environments, is CSA performance tested and includes a five year operational warranty. The GDS-IR2 is also suitable for use in SIL-2 safety systems.

The GDS-IR2 is manufactured in the USA Applications include refineries, onshore and offshore drilling platforms, fuel loading docks, biogas processing, breweries, wastewater treatment facilities and natural gas storage and distribution.
Features
  • CSA Certified for Class I, Div 1 explosion-proof installations
  • Straight line optical path eliminates need for mirrors
  • Suitable for use in SIL-2 rated safety systems
  • High speed response for critical applications (T50 less than 3 sec)
  • Industry standard 4-20 mA current loop calibrated output
  • Rugged stainless steel construction with no moving parts
  • Heated optical chamber maintains accuracy in cold conditions
  • Operates in constant hydrocarbon and anaerobic atmospheres
  • Ten discrete fault indication values for all failure states
  • Routine span calibration not required for normal operation
  • Random power-up delay reduces initial load on power supply
  • Five year operating life lowers total cost of ownership
  • Multiple gas calibration curves for %LEL and % by volume
  • CSA Certified C22.2 No. 152-M1984 Performance Tested
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Specifications

Brand

Power Input

  • 18-32 VDC at 5 watts (typical). Delayed IR source turn-on minimizes inrush power for distributed systems

Max Current

  • Average: 210 mA, peak 400 mA at 24 VDC

Display

  • None

Sensor Technology

  • Reliable infrared sensing technology with patented self-compensating optics and easy-to-clean optical path

Standard Output

  • Standard 3-wire 4-20 mA current source. Max loop R is 1000 ohms with nominal 24 VDC power supply

Output Alarm Conditions

  • Discrete 4-20 mA output levels indicate general fault, reference & optics fault, warm-up, zero drift fault, calibration fault, zero and span set and overrange conditions

Accuracy

  • ±5% of value or 0.5% of scale

Repeatability

  • ±3% LEL, 0-50% LEL
  • ±5% LEL, 51 - 100% LEL

Response Time

  • T50 < 10 seconds; T90 < 20 seconds

Temperature

  • -40°C to +70°C at 0 to 99% RH (Sensor 1HT to +90°C)

Sensor Housing

  • Anodized Aluminum
  • Optional #316 Stainless Steel [SI]

Junction-Box

  • Painted Aluminum
  • Optional #316 Stainless Steel [SS]

Dimensions with Junction-Box

  • Methane, CO₂: Width 5.4”, Height with junction box 10”, Depth 3.5”; Shipping weight 6.pounds (Aluminum)
  • Ammonia: Width 5.4”, Height with junction box 16”, Depth 3.5”; Shipping weight 8 pounds (Aluminum)

Approvals

  • CSA Certified for Class I, Div 1, Grps B, C, D
  • C22.2 No.152-M1984 (R1997) for performance
  • IECEx Certified for Class I, Zone 1, Group IIC

Warranty

  • 5 years from date of purchase
  • 12 years on infrared source
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