ATI B12 Wet Gas Transmitter

ATI's Series B12 Wet Gas System was developed to meet the need for reliable measurements in water saturated gas streams.


  • Select from wide range of gas sensors and concentration ranges to meet your monitoring needs
  • Transmits a 4-20 mA signal linearly proportional to gas concentration
  • Easy integration with NexSens data logging & telemetry products
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ATI B12 Wet Gas TransmitterB12-WET 2-wire wet gas transmitter
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Increasingly stringent air quality requirements have led to expanded use of wet scrubber systems to control air emissions. Chlorine storage facilities and chemical process plants are frequently required to scrub exhaust gas streams to remove halogen and acid gases. Unfortunately, monitoring reactive gas concentrations in moisture saturated air streams presents problems for standard diffusion sensors. Condensing water in these air lines can quickly blind diffusion sensors, rendering them inoperable.

ATI's Series B12 Wet Gas System was developed to meet the need for reliable measurements in wet scrubber outlets for other gas streams that might be saturated with water vapor. Systems have been developed for monitoring strong oxidants (chlorine, bromine, chlorine dioxide, or ozone), acid gases (HCl or HF), and hydrogen.

The basic B12 Wet Gas System consists of a loop-powered 2-wire transmitter and a corrosion resistant sensor specifically engineered to operate at 100% RH. Sensors are designed for direct insertion into vent stacks, or may be used in a flowcell if sample can be pumped to the sensor. When remote display and alarm relay functions are required, the B12 Wet Gas Transmitters can be connected to ATI's B14 Alarm Receiver System. This system will provide direct digital display of gas concentration, plus 3 alarm setpoints, remote alarm reset input, and retransmitted 4-20 mA output. Or, the B12 transmitter may be used separately and tied directly to the users' DCS, PLC, or other equipment. Either way, the B12 is an excellent solution to a difficult monitoring problem.

NexSens data logging and telemetry systems integrate easily with ATI process monitors and sensors, providing real-time remote data readings, alarm notifications, and powerful data processing and reporting capabilities.
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