Critical Environment Technologies | Manufacturers of Gas Detection Systems, Self Contained Systems, Controllers and Transmitters

GAS DETECTION TRANSMITTERS

CETCI makes rugged, reliable analog transmitters in several configurations to suit many different applications. They are available with a variety of sensor types to detect a wide range of gases, including electrochemical, catalytic, infrared and solid state. Several enclosure options are available to meet the environmental requirements. CETCI analog transmitters feature 4 to 20 mA linear output signals, automatic thermal resetting fuse and LED indication for power and alarm. Options include a field settable dry contact relay and a local digital display. Calibration and maintenance procedures are simple and are easily performed in the field.

AST Analog Transmitters

The rugged, reliable AST analog transmitters offers a variety of sensor types to detect a wide range of gases, including solid state, electrochemical, catalytic and infrared. AST transmitters feature 4-20 mA or 0-10 VDC linear output signals, automatic thermal resetting fuse and LED indicators for power and open loop. Options include a field settable dry contact relay and a local digital display.

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ATW Two Wire Transmitters

The rugged, reliable ATW analog transmitters are loop powered and offer several electrochemical sensors to detect a wide range of gases. ATW transmitters convert the raw signal from a sensor into a useful output that can be sent to a controller or building automation system.

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BST BACnet Transmitters

BST digital gas detection transmitters are field addressable, real BACnet output, network, accommodates electrochemical, solid-state, catalytic, and PID sensor technologies with more than 18 different sensors to select from. BST are supplied in rugged polycarbonate, general purpose or watertight enclosures with secured, hinged doors. Local display and dry contact relay options are also available.

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DST Digitial Transmitters

The rugged, reliable DST digital transmitters offers a variety of sensor types to detect a wide range of gases, including solid state, electrochemical, catalytic and infrared. Several enclosure options are available to meet the requirements of many different applications. DST transmitters output scaled linear signals on a RS-485 communication bus, and feature a thermal resetting fuse, an LED indicator for power, alarm and fault, and an internal “on line” LED. Automated calibration and other maintenance procedures are simple and are easily performed in the field.

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AST–IRT Infrared Refrigerant Transmitters

The rugged, reliable AST-IRT transmitter comes with infrared sensors to detect a wide range of refrigerant gases including ammonia. Specific, accurate response eliminates the false alarms that solid-state sensors can cause. AST-IRT transmitters output a linear 4-20 mA signal that can be sent to a CETCI controller or building automation system. Use with any CETCI controllers: MAC or PDC. The standard housing is rugged aluminum and an optional watertight ABS fiberglass housing is available to suit different applications.

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AST-IS CO₂ Transmitters

AST-IS transmitters output a linear 4-20 mA or 0-10 VDC signal that can be sent to a Building Automation System or to a CETCI controller. The transmitter contains an infrared sensor for accurate, reliable carbon dioxide (CO₂) detection. The standard housing is an attractive offfice mount enclosure. Duct mount and digitial display versions are available.

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