CDTR系列二氧化碳、相对湿度和温度变送器减少了安装在墙上或管道中的传感器数量。 通过将CO2、RH和温度结合在一个设备中，系统集成商可以减少安装时间，同时降低材料成本。 与我们目前流行的CDT系列二氧化碳变送器一样，一个单光束双波长非色散红外(NDIR)传感器被用于在建筑物中自动纠正测量结果，以应对光源老化的影响。 为了达到精度，该系列CDTR还包括数字气压调节和现场校准传感器的能力。 通用输出的二氧化碳和相对湿度允许用户选择输出4至20毫安，0至5伏直流电，或0至10伏直流电与几乎任何建筑管理控制器工作。 此外，可以订购无源热敏电阻或RTD传感器用于温度输出。 对于需要视觉指示的应用程序，该系列CDTR的壁挂配置可以与集成的LCD显示器一起订购。 该显示器可配置为仅显示温度、相对湿度、二氧化碳、二氧化碳和湿度或二氧化碳和温度。 在所有配置上，按钮都是进入菜单结构的标准配置。 为了防止篡改，可以使用内部跳线选择锁定按钮的动作。
产品应用
需求控制通风，在学校，办公大楼，医院，和其他室内环境的®认证
Range:CO2: 0 to 2000 or 0 to 5000 ppm (depending on model); Relative humidity: 0 to 99% ; Temperature: 32 to 122°F (0 to 50°C).
Accuracy:±40 ppm + 3% of reading (CO2); ±2% (RH).
Temperature Dependence:±8 ppm/ °C at 1100 ppm.
Non-Linearity:16 ppm.
Pressure Dependence:0.13% of reading per mm of Hg.
Response Time:2 minutes for 99% step change.
Temperature Limits:32 to 122°F (0 to 50°C).
Duct Air Velocity Range:0-4000 FPM (20.32 m/s).
Humidity Limits:10 to 95% RH (non-condensing).
Power Requirements:16 to 35 VDC / 19 to 28 VAC.
Power Consumption:Average: 2 watts; Peak: 3.75 watts.
Sensor:Single-beam, dual-wavelength NDIR.
Output:Current: 4 to 20 mA (max 500 Ω); Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω); Relay: SPST NO 2A @ 30 VDC; RTD or thermistor per r-t curves (depending on model).
Weight:5.6 oz (158.8 g).
Enclosure Rating:Duct mount: NEMA 4X (IP66) for housing only; Wall mount: IP20.
Agency Approvals:CE.
| Model | Description |
|---|---|
| CDTR-2N404 | Carbon Dioxide/Humidity, Wall Mount, universal current/voltage output, North American Housing. |
| CDTR-2N4A4 | Carbon Dioxide/Temperature/Humidity, Wall Mount, universal current/voltage output, 10K Type III Thermistor Temperature Output, North American Housing. |
| CDTR-2N4B4 | Carbon Dioxide/Temperature/Humidity, Wall Mount, universal current/voltage output, 10K Type II Thermistor Temperature Output, North American Housing. |
| CDTR-2N4D4 | Carbon Dioxide/Temperature/Humidity, Wall Mount, universal current/voltage output, Pt100 RTD Temperature Output, North American Housing. |
| CDTR-2N4E4 | Carbon Dioxide/Temperature/Humidity, Wall Mount, universal current/voltage output, Pt1000 RTD Temperature Output, North American Housing. |
| CDTR-2N4F4 | Carbon Dioxide/Temperature/Humidity, Wall Mount, universal current/voltage output, 20K Thermistor Temperature Output, North American Housing. |
