The duct mounted Vaisala CARBOCAP® Carbon Dioxide Transmitter Series GMD20 is specially designed for Demand Controlled Ventilation (DCV). They are easy to install and require no maintenance. The recommended calibration interval is five years.
♦ Versatile transmitters
♦ Reliable measurement with sensor inside the duct
♦ Incorporates Vaisala CARBOCAP® Sensor - the silicon-based NDIR sensor
♦ Excellent long-term stability
♦ Negligible temperature dependence
♦ Ease of installation
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Download the latest Datasheet The Vaisala Carbon Dioxide Transmitter Series GMD20
The GMD20 series transmitters can be used independently, or incorporated into building energy management systems. The series consists of duct mount units GMD20 and GMD20D. Version D has a display. The duct units' compact sensor head design fits inside the ventilation duct, eliminating the risk of leaking gaskets and measurement errors. In addition to the standard 0 ... 20 mA, 4 ... 20 mA and 0 ... 10 V outputs, there are two other options: one LonWorks® interface and a relay output. The relay output is standard with the display units.
Minimal Energy Costs The use of the GMD20 series transmitters ensures the best possible control of air quality and results in considerable savings in energy consumption, maintenance and recalibration costs.
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