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AST-I Industrial Infrared Transmitter

Key Features

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Dual temperature compensated pyroelectric infrared detectors
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Low power consumption
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RoHS compliant circuit boards
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Fast response
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Water / dust tight / corrosion resistant polycarbonate enclosure
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Linear analog (4-20 mA) output
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Target gases include CO2, Hydrocarbons (including Methane), Nitrous Oxide
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Measurement ranges from 0-1000 ppm up to 0-100% volume (sensor & gas dependent)

Description
Specifications
Technical Library
Product Codes
Accessories

AST-I is an analog transmitter with high quality, industrial grade, miniature infrared sensors. They are supplied, as a standard in a water / dust tight, corrosion resistant polycarbonate enclosure.

These instruments use high quality, long life, dual beam sensors.The infrared sensor is supplied with a microporous PTFE filter attached to provide splash protection only. This filter is not designed to provide protection to the sensor from application of pressurized water.

APPLICATIONS

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Commercial Buildings
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Institutional Buildings
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Waste Water Treatment Plants
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Oil & gas plants
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Manufacturing Plants
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and many more

Gas Types

Carbon Dioxide (CO2)	ICD
Hydrocarbon gases (HC): including Methane (CH4)	IHC
Nitrous Oxide (N2O)	INI

Sensors

Mechanical

AST-ICD, AST-IHC & AST-INI Industrail Analog Transmitters
Enclosure:	Water/dust tight, corrosion resistant polycarbonate
Weight:	255 g (9 oz)
Size:	4.9" x 4.9" x 2.9" (125 mm x 125 mm x 74 mm)

Electrical

Power Requirement:	24 VDC nominal (12 - 30 VDC) (polarity protected) 5 W maximum
Current Draw:	70 - 100 mA
Outputs:	Linear 4 - 20 mA analog (10 bit resolution with current limit)
Fuse:	500 mA anti-surge in-line fuse for supplied power

Environmental

Operating Temperature:	-20°C to 50°C (-4°F to 122°F)
Humidity:	0 - 95% RH non-condensing

Note: Measurements above are sensor dependent.

Certifications

Drawings

Product Specifications

AST-ICD Industrial Infrared Product Specifications

Engineering Specification Samples

Miscellaneous Files

AST–I Industrial Infrared Transmitters

Industrial carbon dioxide (CO2), watertight housing, 0-5% volume CO2	AST-ICD-BW
Industrial carbon dioxide (CO2), watertight housing, 0-100% volume CO2	AST-ICD-CW
Industrial carbon dioxide (CO2), watertight housing, 0-100% volume CO2	AST-ICD-DW
Industrial hydrocarbon gases, watertight housing, 0-100% LEL CH4	AST-IHC-BW
Industrial hydrocarbon gases, watertight housing, 0-100% volume CH4	AST-IHC-CW
Industrial nitrious oxide (N2O), watertight housing, 0-1000 ppm N2O	AST-INI-EW

Metal Protective Guard

» 16 guage, clear anodized metal protective guard
» Larger size for controllers & self-contained systems
» Smaller size for analog & digital transmitters

Fixed Calibration Kit

» Full selection of calibration gases from stock
» All required calibration accessories for field and shop calibration
» Full service and calibration shop for fixed gas detection instruments