AST-IS Industrial CO2 Transmitters

    Key Features

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    Single internal infrared CO2 sensor
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    Operating power 24 VDC or 24 VAC nominal
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    4 - 20 mA or 0 - 10 VDC linear output signal
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    0 - 2,000 ppm standard range (AST-IS3, AST-IS6 and AST-IS12)
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    0 - 4% volume measurement range (AST-IS18 for winery applications)
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    Relay output (AST-IS12 and AST-IS18)
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    LCD digital display (AST-IS6, AST-IS12 and AST-IS18)
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    Low maintenance, easy calibration
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    RoHS compliant circuit boards
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    CE certified

The AST-IS Industrial Transmitters contain a non-dispersive, infrared sensor for accurate and reliable carbon dioxide (CO2) detection and are available in 4 models with different options. All models are low maintenance and a key component for climate control of buildings and other processes.

AST-IS3 is a duct mount, IP54 rated enclosure for installation in the ventilation duct. Standard 0 - 2,000 ppm range.

AST-IS6 is a wall mount enclosure with protection class IP65, includes a display and is ideal for most large spaces. Standard 0 - 2,000 ppm range.

AST-IS12 is a duct mount, IP54 rated enclosure for installation in the ventilation duct, includes a display, relay and Modbus® output. Standard 0 - 2,000 ppm range. 

AST-IS18 is a wall mount , IP65 rated enclosure that is specially coated PCB with an extra dust/water protection filter suited for greenhouses, wineries and similar environments. Includes a temperature sensor, relay and a display. Standard 0 - 4% volume range.

All the AST-IS transmitters feature 4 - 20 mA or 0 - 10 VDC linear output signals, low 24 VDC / VAC nominal voltage and are CE certified.

APPLICATIONS

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    Residential Buildings
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    Commercial Buildings
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    Greenhouses
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    Wineries
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    Schools / Educational Facilities
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    Office Buildings
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    ...and many more

Gas Types

Carbon Dioxide (CO2)

Sensors

Infrared CO2 Sensor

Sampling Method
Monitoring Method
Range

 

 Life Expectancy

 

Non-dispersive infrared
Diffusion
0 - 2,000 ppm (AST-IS3, AST-IS6 and                             AST-IS12)
0 - 4% volume (AST-IS18 only)

>15 years

Temperature Sensor Range (AST-IS-12 and AST-IS18) 0°C to 50°C (32°F to 122°F)
Accuracy ± 30 ppm, ± 3% of reading

Mechanical

 

AST-IS3 CO2 Transmitter - Industrial  Duct Housing
Enclosure: Industrial Housing PVC, IP54 rated, no display

Size:

Probe Length:

151.3 mm x 84 mm x 46 mm (5.96" x 3.31" x 1.81")

246 mm (9.68")

 

AST-IS6 CO2 Transmitter - Industrial  Wall Mount with display
Enclosure: Industrial Housing PVC, IP65 rated, with display
Size: 177 mm x 85 mm x 38 mm (7.0" x 3.35" x 1.5") 

 

AST-IS12 CO2 Transmitter - Industrial  Ventilcation Duct Mount with display, relay, temperature sensor, Modbus output
Enclosure: Industrial Housing PVC, IP54 rated, with display
Size: 151.8 mm x 84.7 mm x 47 mm (5.98" x 3.33" x 1.85") 

 

AST-IS18 CO2 Transmitter - Industrial  Wall Mount with display, relay, temperature sensor
Enclosure: Industrial Housing PVC, IP65 rated, with display
Weight: 363 g (12.8 oz)
Size: 177 mm x 85 mm x 38 mm (7.0" x 3.35" x 1.5") 

Electrical

Power Requirement: 24 VDC or VAC, 50/60 Hz (half-wave rectifier input)
Power Consumption: <1 W average

Input / Output

Linear Outputs: Linear 4 - 20 mA or 0 - 10 VDC signal
Relay Output (AST-IS12 and AST-IS18):
min load: 1 mA / 5V
rated load: 0.5 A / 125 VAC; 1 A / 24 VDC

User Interface

Display

(AST-IS6, AST-IS12 and AST-IS18):

 
LCD, 4 digits, 7 segments with ppm indicator

Environmental

Operating Temperature: 0°C to 50°C (32°F to 122°F)
Humidity: 0 - 85% RH non-condensing

Certifications

CE Certified
CE and compliance with ISO 9001:2008
EMC 2004/108EC directive, EN 61326-1:2006, Class B equipment
RoHS directive 2011/65/EU

More Brochures

CETCI Product Family Brochure CETCI Product Family BrochureEnglish    French    Spanish

Product Specifications


Application Brochures

Winery Application Brochures
Fermentation Room Application BrochureFermentation Room Application (QCC + LPT-A + AST-IS18)

Quick Application Guide
Quick Application Guide For Fixed Gas Detection SystemsFor Fixed Gas Detection Systems

Drawings


Software


Sensor Specification


Engineering Specification Samples

DataSheets

Operation Manual

AST-IS CO2 Sensor Transmitters

Description Code
Duct mount with kit, non-dispersive infrared carbon dioxide (CO2) sensor (0 - 2,000 ppm range), 4 - 20 mA or 0 - 10 VDC output, 24 VDC or VAC, IP54 industrial enclosure  AST-IS3
Wall mount with bracket, non-dispersive infrared carbon dioxide (CO2) sensor (0 - 2,000 ppm range), 4 - 20 mA or 0 - 10 VDC output, 24 VDC or VAC, LCD digital display, IP65 industrial enclosure  AST-IS6
Duct mount with kit, non-dispersive infrared carbon dioxide (CO2) sensor (0 - 2,000 ppm range), temperature sensor (0°C to 50°C / 32°F to 122°F range), 4 - 20 mA or 0 - 10 VDC output, Modbus® output, 24 VDC or VAC, LCD digital display, relay, IP54 industrial enclosure  AST-IS12
Wall mount with bracket, non-dispersive infrared carbon dioxide (CO2) sensor (0 - 4% volume range), temperature sensor (0°C to 50°C / 32°F to 122°F range), 4 - 20 mA or 0 - 10 VDC output, 24 VDC or VAC, LCD digital display, relay, IP65 industrial enclosure  AST-IS18

Metal Protective Guard

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

Calibration Kit

» Commonly used tools required for calibration in one convenient toolbox
 

RSH-24VDC Remote Strobe & Horn Combo (with Enclosure)

» Two alarm features combined into one device
» Light weight, weather and corrosion resistant
» Independent settings for horn, strobe or horn and strobe together
» Surface mount and 1/2” NPT conduit mount
» ABS / Polycarbonate water / dust tight enclosure


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