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

CETCI Product Family BrochureTransmitters Brochure

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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