AST-IS Standard CO2 Transmitters

    Key Features

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    Single internal infrared CO2 sensor
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    Linear 4 - 20 mA or 0 - 10 VDC output
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    Operating power 24 VDC or 24 VAC nominal
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    Low maintenance, easy calibration
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    0 - 2,000 ppm standard range
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    Relay output (AST-IS5 model only)
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    1 LEED credit (AST-IS14 model only)
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    Attractive PVC enclosures ideal for indoor use
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    RoHS compliant circuit boards
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    CE certified

The AST-IS standard transmitters contain a non-dispersive, infrared sensor for accurate and reliable, indoor, carbon dioxide (CO2) detection and are available in 3 models with different options. All models are low maintenance and a key component for climate control of buildings and other processes.

AST-AS1 is a simple, low-cost, transmitter without a display for fixed installation in the climate zone.

AST-IS5 measures both CO2 and temperature in the ambient air, has a display and can transmit data to a BAS system or controller.

AST-IS14 features a display and has an alarm with sound and light that alerts when the levels of CO2 exceed defined levels.

The AST-IS standard transmitters feature 4 - 20 mA or 0 - 10 VDC linear output signals, low 24 VDC / VAC nominal voltage, standard 0 - 2,000 ppm range and CE certification.
 

APPLICATIONS

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    Residential Buildings
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    Commercial Buildings
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    Schools / Educational Institutions
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    Offices
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    and many more

Sensors

Infrared CO2 Sensor

Sampling Method
Monitoring Method
Range

 

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

Temperature Sensor Range (AST-IS5 only) 0°C to 50°C (32°F to 122°F)
Accuracy ± 30 ppm, ± 3% of reading

Mechanical

AST-IS1 CO2 Transmitter - Office Wall Mount
Enclosure: General Purpose PVC, IP30 rated, no display
Size: 3.94" x 3.15" x 1.1" (100 mm x 80 mm x 28 mm)

 

AST-IS5 CO2 Transmitter - Office Wall Mount with LCD digital display, temperature sensor & relay
Enclosure: General Purpose PVC, IP30 rated, with display and relay
Size: 4.7" x 3.2" x 1.2" (120 mm x 82 mm x 30 mm)

 

AST-IS14 CO2 Transmitter - Office Wall Mount with LCD digital display, visual & audible alarm and mute button
Enclosure: General Purpose PVC, IP30 rated, with display and alarm
Size: 5.11" x 3.34" x 1.18" (130 mm x 85 mm x 30 mm)

Electrical

Power Requirement: 24 VDC or VAC

Input / Output

Linear Outputs: Linear 4 - 20 mA or 0 - 10 VDC signal
Relay Output (AST-IS5 only) 1 SPDT 50 VAC@1A; 24 VAC@1A (1000 ppm)

User Interface

Environmental

Operating Temperature: 0°C to 50°C (32°F to 122°F)
Humidity: 0 - 95% RH non-condensing

Certifications

 

CE Certified CE and compliance with ISO 9001:2008

More Brochures

Product Specifications


Application Brochures

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
Office wall mount, non-dispersive infrared carbon dioxide (CO2) sensor (0 - 2,000 ppm range), 4 - 20 mA or 0 - 10 VDC output, 24 VDC or VAC  AST-IS1
Wall mount, non-dispersive infrared carbon dioxide (CO2) sensor (0 - 2,000 ppm range), temperature sensor, LCD digital display, relay output (1A @ 50 VAC / 24 VDC rating), 4 - 20 mA or 0 - 10 VDC output, 24 VDC or VAC  AST-IS5
Wall mount, non-dispersive infrared carbon dioxide (CO2) sensor (0 - 2,000 ppm range), LCD digital display, audible alarm, 1 LEED credit, 4 - 20 mA or 0 - 10 VDC output, 24 VDC or VAC  AST-IS14

Metal Protective Guard

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


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