Infrared Carbon dioxide Modbus® gas detector with a 0 - 2,000 ppm measurement range housed in a water tight, duct style enclosure for mounting in ventilation ducts

 

Key Features

  • Single internal infrared CO2 sensor
  • 0 - 2,000 ppm standard range
  • Long sensor life (approx. 15 years)
  • Measures ambient air temperature
  • LCD digital display
  • One dry contact relay
  • For duct mount ventilation applications
  • Industrial IP54 rated enclosure
  • Low maintenance, easy calibration
  • 4 - 20 mA or 0 - 10 VDC linear output signal
  • Modbus® RS-485 RTU output
  • Operating power 24 VDC or 24 VAC nominal
  • CE certified

 

Description

The AST-IS12 industrial transmitter contain a non-dispersive, infrared sensor for accurate and reliable carbon dioxide (CO2) detection in duct mount applications. The enclosure is IP54 rated and it includes a display, relay and Modbus® output.

It is low maintenance and a key component for climate control of buildings and different ventilation strategies. It is designed to communicate with a BAS or Controller. It requires 24 VDC / VAC nominal voltage power, has 4 - 20 mA or 0 - 10 VDC linear output signals and offers a standard 0 - 2,000 ppm gas monitoring range.

AST-IS12 Industrial CO2 Transmitter

  • Target Gas

     

    Gas Sensor

    Carbon dioxide (CO2) 0 - 2000 ppm range

    Mechanical

     

    Enclosure

    Industrial Housing, PVC, IP54 rated

    Probe Length

    246 mm / 9.68 inches

    Size

    151.8 x 84.7 x 47 mm / 5.98 x 3.33 x 1.85 inches

    User Interface

     

    Display

    4 Digits, 7 segments LCD display with ppm indicator

    Input/Output

     

    Output

    Linear 4 - 20 mA or 0 - 10 VDC signal

    Communication

    Modbus® RS-485 RTU

    Relay (contact free)

    Min load: 1 mA / 5V, Rated load: 0.5 A / 125 VAC; 1 A / 24 VDC

    Electrical

     

    Power Requirement

    24 VDC or VAC, 50/60 Hz (half-wave rectifier input)

    Current Draw

    1 W average

    Wiring

    18 AWG stranded, shielded

    Environmental

     

    Operating Temperature

    0°C to 50°C (32°F to 122°F)

    Operating Humidity

    0 - 85% RH non-condensing

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