CDTR系列二氧化碳、相對濕度和溫度變送器減少了安裝在墻上或管道中的傳感器數量。 通過將CO2、RH和溫度結合在一個設備中，系統集成商可以減少安裝時間，同時降低材料成本。 與我們目前流行的CDT系列二氧化碳變送器一樣，一個單光束雙波長非色散紅外(NDIR)傳感器被用于在建筑物中自動糾正測量結果，以應對光源老化的影響。 為了達到精度，該系列CDTR還包括數字氣壓調節和現場校準傳感器的能力。 通用輸出的二氧化碳和相對濕度允許用戶選擇輸出4至20毫安，0至5伏直流電，或0至10伏直流電與幾乎任何建筑管理控制器工作。 此外，可以訂購無源熱敏電阻或RTD傳感器用于溫度輸出。 對于需要視覺指示的應用程序，該系列CDTR的壁掛配置可以與集成的LCD顯示器一起訂購。 該顯示器可配置為僅顯示溫度、相對濕度、二氧化碳、二氧化碳和濕度或二氧化碳和溫度。 在所有配置上，按鈕都是進入菜單結構的標準配置。 為了防止篡改，可以使用內部跳線選擇鎖定按鈕的動作。
產品應用
需求控制通風，在學校，辦公大樓，醫院，和其他室內環境的®認證
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. |
