ATi’s F12D Toxic Gas Detector is designed to measure more than 60 toxic gases, featuring the exclusive AutoTest* function that provides daily, reliable response checks to ensure system integrity. The F12D is highly customizable to suit almost every fixed mount toxic gas application.


For many toxic gases, ATi offers a unique sensor response testing system unmatched by any competitive gas detector. Even outdoors in high wind conditions, the Auto-Test system provides reliable response checks to ensure system integrity. Sensor response is verified with an actual gas sample that is generated on demand. Generators store run time information accessible to operators, and are automatically tested for compatibility with the installed electrochemical sensors.

F12 gas detectors provide useful features that simplify installation, operation, and maintenance. The 4-button keypad is used to configure the menu-driven setup pages. The display also provides alarm indication and complete menus for setting up operating parameters.

The F12iS is also available for hazardous locations.

*Dependent upon gas being monitored

Smart sensors

The F12D uses ATi smart sensors that allow easy interchangeability. Each sensor contains signal conditioning electronics and data memory. Sensors can be calibrated using a spare unit avoid using calibration gases in the plant. Sensors may also be returned to ATi for factory calibration, which is useful for gases that are costly or difficult to obtain. Each sensor adjustment (zero or span) is stored in sensor memory and can be reviewed on the F12D display. This data is very useful in assessing the sensor’s condition and estimating remaining sensor life.

Key Facts

  • Power: Available in 12-24 VDC, 115 VAC, or 230 VAC configurations.
  • Interchangeable Sensors:The F12/D accommodates 60 different sensor modules.
  • Sensor Verification: Auto-Test generator option provides a true gas response test. Test history is stored in sensor memory for user review at any time.
  • LCD Graphic Display: Allows clear gas concentration display plus complete menu-driven operator interface.
  • Heated Sensor Option: A heated sensor holder allows operation in high humidity to avoid condensation problems.
  • Remote Sensor: A junction box with digital output allows sensor location up to 500 ft. from the F12/D display unit.
  • Internal Data Logger: Gas values are stored at user defined intervals from 1 to 60 minutes. Stored data may be reviewed or graphed on the LCD display.
  • Calibration History: Sensor calibration adjustments of zero and span are stored in sensor memory and may be viewed on the F12/D display.
  • Communication: F12/D is available with either HART® or Modbus RTU.
  • Approvals: CE and RoHS Compliant

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