CDTA二氧化碳探测器 包括二氧化碳、湿度、温度和具有覆盖功能的温度设置点。 通过现场选择的Modbus®和BACnet通信，只需要四根电线的电力和通信信号。 所述通信检测器可以串接在一起，进一步降低了安装成本。 为了减少设置时间，使用DIP开关设置RS-485 MAC地址。 第二组DIP开关用于选择输出是Modbus®RTU还是BACnet MS/TP通信协议，并限制对set up菜单的访问。 CDTA系列使用单光束双波长非色散红外(NDIR)传感器来测量二氧化碳水平。 可以现场校准， 气压可以根据海拔高度调整。 湿度使用电容式聚合物传感器，温度使用10KO热敏电阻传感器测量。 湿度传感器是现场可更换的，不需要额外的校准。 可选的本地和远程显示器可用于显示任何参数, 液晶显示器可编程显示温度、湿度或温度设定值。

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

Sensor (CO2):Single-beam, dual-wavelength NDIR; Humidity: Capacitive polymer; Temperature: 10KΩ thermistor.

Range:CO2: 0 to 2000 or 5000 PPM CO2 (depending on model); Humidity: 0 to 100% RH; Temperature: 32 to 122°F (0 to 50°C).

Accuracy:CO2: ±40 ppm ±3% of reading; RH: ±2% (10 to 90% RH); Temperature: ±1°C @ 25°C.

Temperature Dependence (CO2):±8 ppm / °C at 1100 ppm.

Non-Linearity (CO2):16 ppm.

Pressure Dependence (CO2):0.13% of reading per mm of Hg.

Response Time (CO2):2 min. for 99% step change.

Temperature Limits:32 to 122°F (0 to 50°C).Humidity Limits:10 to 95% RH (non-condensing).

Power Requirements:10 to 42 VDC / 10 to 30 VAC.

Power Consumption:Average: 0.5 watts; Peak: 1.2 watts.

Output:2-wire RS-485, Modbus® RTU or BACnet MS/TP communication protocol.Weight:4.4 oz (125 g).

Enclosure Rating:IP20.

Agency Approvals:BTL, CE.

Model	Description
CDTA-2N000	Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override, Modbus and BACnet Output, North American Wall Mount Housing, 2000 PPM Range
CDTA-2N000-LCD	Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override, Modbus and BACnet Output, North American Wall Mount Housing, 2000 PPM Range, LCD Display
CDTA-5N000	Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override, Modbus and BACnet Output, North American Wall Mount Housing, 5000 PPM Range
CDTA-5N000-LCD	Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override, Modbus and BACnet Output, North American Wall Mount Housing, 5000 PPM Range, LCD Display