AST-IS12 Industrial CO2 Transmitter

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

Comes with Modbus® output, a display and relay

Applications

  • Commercial Buildings
  • Schools / Educational Institutions
  • Office Buildings
  • and many more...

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.

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
Certifications
Comforms to
EMC 2004/108/EC, 92/31/EEG including amendments by the CE-marking Directive 93/68/EEC
EN 61000-4-2 level 2, EN 61000-4-3 level 2, EN 61000-4-4 level 4, EN 61000-4-6, EN 61000-4-8 level 4, EN 55022 class B
Conforms to
RoHS compliant circuit boards, RoHS 2011/65/EU
Product Codes
AST-IS12
Non-dispersive infrared Carbon dioxide (CO2) sensor (0 - 2,000 ppm range), duct mount with mounting kit, IP54 industrial enclosure, LCD digital display, relay, temperature sensor, Modbus® output

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