The AST-I series of analog transmitters are high quality, industrial, dual beam, referenced transmitters with miniature infrared sensors, analog output and water / dust tight, corrosion resistant, non-metallic enclosures.
The AST-ICD detects carbon dioxide (CO2) with a choice of one of three different ranges. The AST-IHC detects hydrocarbon - methane (CH4). The AST-INI detects nitrous oxide (N2O) up to 1,000 ppm range.
Care should be taken to not spray the sensor head. The sensor vent opening has a microporous PTFE filte attached which provides splash protection only, it is not designed to provide protection from the application of pressurized water.
- Low power consumption
- Dual temperature compensated pyroelectric infrared detectors
- Fast response with accurate low-level gas detection
- Long sensor life
- Water / dust tight / corrosion resistant polycarbonate enclosure
- Linear analog (4-20 mA) output
- Target gases include CO2, Hydrocarbons (including Methane),Nitrous Oxide
- RoHS compliant circuit boards
|Gas Type||Carbon Dioxide (CO2) |
Hydrocarbon gases (HC): including Methane (CH4)
Nitrous Oxide (N2O)
|Mechanical||AST-ICD, AST-IHC & AST-INI Industrial Analog Transmitters||Enclosure: Water/dust tight, corrosion resistant polycarbonate|
|Weight: 255 g (9 oz)|
|4.9" x 4.9" x 2.9" (125 mm x 125 mm x 74 mm)|
|Electrical||Power Requirement||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|