INFORMATION SHEET
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The GDA 2527 Nitrogen Dioxide (NO₂) Gas Sensor is a 2 wire 4-20 mA Loop Powered device with a range of 0-30 ppm Nitrogen Dioxide. It has an electrochemical sensing unit which is temperature compensated and easily replaceable.

Designed, manufactured and supported locally in Australia.

The nitrogen dioxide gas sensor electronics are housed in a robust ABS sun tolerant plastic enclosure. The sensor element is on a pluggable lead allow ease of replacement.

  • 0-30 ppm Range (Other ranges on request)
  • 4-20 mA o/p (For Voltage Output see the GDA 2627)
  • Low cost replaceable gas sensor element
  • Easy to install
  • Easy to calibrate (only gas and multimeter required)
  • ABS sun tolerant housing
  • Australian Factory Certificate of Calibration

Poisoning: GDA sensors are designed to operate in a wide range of harsh environments and conditions. However, it is important that exposure to high concentrations of solvent vapours is avoided, both during storage and operation.

Made in Australia and Supported in Australia


Related Products


Car Park Gas Monitoring Systems

The Gas Detection Australia car park gas detection system comprises of 1 up to 16 GDA 2525 carbon monoxide car park gas detectors per zone or level. The car park gas concentration signals are sent from the car park gas detector and the highest level from all the car park gas detectors are displayed locally on the control unit.  The latest regulations (AS1668.2-2012) call for variable extraction control and minimum flow rates. Gas Detection Australia car park system's allows variable-speed drive (VSD) control  that will meet this requirement of the australian car park gas detection standards. The car park carbon monoxide sensors (GDA 2525) are designed to be unobtrusive, simple to install and calibrate. All systems manufactured by Gas Detection Australia are built, programed and calibrated in our factory prior to delivery and will only require wiring and connecting .

Designed, Manufactured and Supported in Australia.

Specification NameSpecification Value
Detectable GasesNitrogen Dioxide (NO₂)
Detectable Gas Ranges0-30 ppm
Maximum Overload200 ppm
Cross SensitivityChlorine ~50%
Power Requirements+24 VDC
Output Types4-20 mA loop powered
Power Consumption<25 mA @ 24 VDC
Output SpecificationsMax loop impedance 680 Ω @ 24 VDC
Connection3 pin plug connector
Wiring2 core 18 AWG with overall screen
Operating Temperature10°C to 50°C (LT version -30°C to +10°C) Accuracy varies outside of range
Operating Humidity15% to 90% RH peak non condensing
Operating Pressure800 to 1200 mbar
Accuracy of Reading1.5% of reading of reading
Warm Up Time30 seconds
Response TimeT90 = 45 seconds at SATP
Zero Drift< 0.1% / 30 days
Calibration Drift< 0.25% / 30 days at SATP
Sensor TechnologyElectrochemical Cell
Calibration RequirementEvery year with 6 monthly functional tests if sensor operated at SATP
Typical Operating Life2 years before requiring sensor head replacement in standard operating environment
Warranty12 months from date of dispatch
Dimensions122 x 85 x 62 mm (H, W, D)
Weight260g
Enclosure RatingIP56 with sensor module IP22
Enclosure MaterialPVC Plastic & PTFE
Cable Entry2 x M20 top entry

GDA 2527 Nitrogen Dioxide (NO₂) Gas Sensor

  • GDA 2527 Fixed Gas Sensor Trasmiter & Module
  • 1x M20 to 20mm Conduit Adaptor
  • User Manual
  • Australian Factory Certificate of Calibration
Part Number Range Replacment Sensor Module
2527-001 0-30 ppm 2527-002

 

Accessories

Part Number Image Description
GC01-001 Gassing Cap with 500mm Length vinyl tubing
2500-005 4 x 10-24 x 3/4 (T25) Tamper Proof Security Machine Screws for GDA 2500/2600 Series Lid. incl. Wrench Key

 

 

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CALGAS : Calibration Gas

To test and maintain accuracy gas detection systems require regular testing and calibration. GDA can provide you with a complete line of calibration equipment to calibrate all of our gas sensors and detectors. Our calibration gas cylinders all come with N.I.S.T. certification and ISO 17025 approval so you can be confident that you will receive gas with the highest accuracy levels.