This Infra red sensor is certified for use in Zone 1 Hazardous areas within Australia.

Locally Technically Supported by Gas Detection Australia

IECEx Approved

It operates from 24 VDC and gives a 4-20 mA o/p over the range 0-100% LEL of the gas to which it is calibrated to. The sensor also has two users settable alarm points with the associated output SPCO relays as well as a dedicated FAULT relay .The unit can be programmed and calibrated without opening. The display indicates the gas level reading. It is fitted with a sensor splash cover giving a head IP rating of IP66. The sensor is available for use with specific hydrocarbon gases and also CO2. The sensor has 2 user programmable alarm relays with volt free contacts as well as a fault relay with volt free contacts.

  • No over range problems associated with catalytic sensors
  • Poison resistant to gases such as hydrogen sulphide
  • Low operation cost single point calibration
  • Built in back light LCD display
  • Auto calibration and program setting without opening (no hot work permits)
  • 2-stage alarm with 2 SPCO relays
  • 1-fault relay SPCO
  • 4-20 mA dc output signal (0-100% LEL)
  • Optional modbus

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Hazardous Areas (IEC Ex Certified)

IEC Ex approved gas detectors and sensors for use in Zone 1 and Zone 2 areas within Australia for both Toxic and Flammable gases.

Hazardous Areas are areas in which an explosive gas atmosphere is or may be expected to be present, in quantities such as to require special precautions for the construction installation and use of equipment construction, installation and use of equipment. Hazardous areas are classified into 3 zones based upon the frequency of the occurrence and duration of an explosive gas atmosphere, as follows:

  • Zone 0 - Area in which an explosive gas atmosphere is present continuously or for long periods or frequently.
  • Zone 1 - Area in which an explosive gas atmosphere is in which an explosive gas atmosphere is likely to occur in normal likely to occur in normal operation occasionally.
  • Zone 2 - Area in which an explosive gas atmosphere is not likely to occur in normal operation but, if it does occur, will persist will persist for a short period for a short period only.
  • Non hazardous area (safe area) - A non hazardous area is an area in which an explosive atmosphere is not expected to be present.

As per IEC60079-10-1 and AS/NZS 60079.29.2:2016

Specification NameSpecification Value
Detectable GasesHydrocarbon gases (LNG, LPG, Methane, Buthane & etc), CO₂, CO, N₂O
Detection TypeDiffusion
Sensor TechnologyInfrared
Response TimeT90 < 6 sec, T50 < 3 sec
Accuracy of Reading±3% / Full scale
Operation mode display4-LED (Power, 2-stage alarm, 1-trouble)
Measuring value displayLCD display (2-line, 16 characters with back light)
Parameter controlNon intrusive control with a Magnet bar (calibration, maintenance)
Power Requirements18 - 31 VDC (24 VDC normal)
Power Consumption400 mA max @ 24 VDC
Output Types4-20 mA
Connection5 way plug conector
Wiring(CVVS or CVVSB 1.5sq x 3 wires) + Shield
Conduit connectionNPT 1/2”. Optional order: NPT 3/4", M20, M25
Operating Temperature-40°C to 80°C
Operating Humidity5% to 95% RH peak non condensing
Dimensions323 x 156 x 110 mm (H, W, D)
Enclosure MaterialHousing : ALDC, SUS316(Option) / Sensor : SUS316
Weight3 kg
Product Description
3000-001 GIR-3000 0-100% LEL Methane (CH₄) gas detector and transmitter
3000-002 GIR-3000 0-100% LEL Propane (C₃H₈) gas detector and transmitter
3000-003 GIR-3000 0-2% Vol Carbon Dioxide (CO₂) gas detector and transmitter