The GMW115 carbon dioxide transmitter is suitable for on-demand control ventilation systems, with a compact design and high standards for HVAC control applications. It uses the CARBOCAP® carbon dioxide sensor, which offers high stability and long-term stability. The transmitter is suitable for HVAC control in various spaces, such as schools, offices, and meeting rooms.
The Vaisala CARBOCAP® Carbon Dioxide Transmitter GMW115 is designed for use in demand-controlled ventilation (DCV) systems within building automation. It measures indoor CO2 levels to determine air quality and occupancy, helping control fresh air intake in buildings with fluctuating personnel such as schools, offices, and conference rooms.
The device utilizes Vaisala's proprietary CARBOCAP® silicon-based infrared absorption sensor technology. This unique design includes an internal reference measurement using an electronically tunable Fabry-Perot interferometer, which compensates for errors caused by light intensity changes or dust accumulation, ensuring exceptional long-term stability without the need for complex drift compensation algorithms. This manual is written in Chinese.
| CO2 Measurement Range | 0 ... 2000 ppm / 0 ... 5000 ppm |
|---|---|
| Accuracy | ± (2% range + 2% reading) |
| Long-term Stability | ±5% of range / 5 years |
| Response Time T90 | 1 minute |
| Operating Temperature | -5 ... +45 ºC |
| Relative Humidity | 0 … 85 % RH |
| Operating Voltage | 24 V (±20 %) AC/DC |
The response time T90 is 1 minute.
It uses Vaisala's proprietary CARBOCAP® silicon-based infrared absorption sensor technology.