D12Ex-IR Infrared Gas Transmitter

ATi’s D12Ex-IR provides infrared gas detection capability in an explosion-proof package, suitable for almost any industrial environment.

Infrared combustible gas or CO2 detection

The D12Ex-IR is a versatile infrared system used primarily for the detection of combustible levels of methane or other hydrocarbons. It may also be used for monitoring CO2 levels, either in ppm or percent levels.

D12Ex-IR transmitters provide analog signals for remote interface and optional relays for local alarming functions. Two digital communication options, Modbus™ and Hart™, are also available. Certified for use in explosion hazard areas, the unit provides rapid and reliable detection of
hazardous conditions so that protective measures can be activated.

The D12Ex-IR is also available with an infrared sensor designed for CO2 measurements in ambient air or in pumped gas samples. Two carbon dioxide sensors may be specified, one for low range use and another for higher levels of CO2. The low range sensor may be scaled from 0-1000 PPM minimum to 0-5% maximum, while the high range sensor covers ranges from 0-10% minimum to 0-50% maximum.


Features & specification

  • Backlit LCD Display
  • Internal Data Logger
  • Non-Intrusive operating functions such as calibration, alarm setup, alarm reset, data view, and setup
  • Options are all available using a magnetic tool.
  • No need to open the enclosure when making adjustments.
  • Password Protection
  • Modular Electronics
  • Explosion Proof Enclosure
  • Scalable 4-20 mA: The output range for a particular sensor is programmable within the range boundaries set in that sensor.
  • Three Internal Alarm Relays
  • Analog Output Simulation
  • Relay Output Simulation
  • Serial Communication Interface


  • Chemical Processing
  • Pulp & Paper
  • R&D Labs
  • Semiconductor Plants
  • Refineries
  • Pharmaceuticals
  • Food Processing
  • Aluminum Refining
  • Breweries
  • Metals Processing
  • Water Treatment
  • Wastewater Treatment
  • Electric Utilities
  • Agricultural Chemicals
  • Plastics Manufacturing

Key benefits

  • Methane or hydrocarbon gas detection
  • Explosion proof enclosure
  • Two digital communication options, Modbus™ and HART™
  • Available with an infrared sensor designed for CO2 measurements


Frequently Asked Questions

How often should you calibrate the ATi H10 smart gas sensor?

We recommend that the H10 smart gas sensor is calibrated every 6 – 12 months, however this may vary depending upon which gas is being monitored.

Can I use one ATi H10 smart gas sensor in multiple devices?

Yes, the ATi H10 smart gas sensor can be plugged into any compatible gas detection device. Also multiple sensors can be used on one device, resulting in a gas detector that can go from measuring Phosgene to Ammonia in less than one minute.

Can I tailor a MetriNet solution to suit an application?

Yes, all MetriNet smart water quality solutions are modular. This allows for bespoke units to be built with the flexibility to add further parameters at a later stage.

How many water quality parameters will ATi’s MetriNet monitor?

The ATi MetriNet smart water quality solution can monitor 8 different parameters at once from a total selection of 16

Additional information


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