Dwyer CDD型二氧化碳浓度变送器适用于楼宇自控系统
NDIR技术, 0-2000PPM范围, 0-10VDC输出
产品参数
The Model CDD Duct Mount Carbon Dioxide Transmitter monitors the occupancy in a room by detecting the concentration of carbon dioxide in the return air duct. The non-dispersive infrared sensing technology automatically updates the calibration of the transmitter using a proprietary logic feature which limits the amount of error due to drift. The Model CDD can measure up to 2000 PPM in duct air flows less than 1500 FPM.
测量范围:0-2000 PPM
精度:读数的± 40PPM 3%(22℃)
稳定性:<2%
非线性:<1%
压力关系:0.13% mm/Hg
响应时间:3分钟达到测量值的90%
管道气速度范围:0-1500 FPM (7.63 m/s)
操作温度:32-122F (0-50℃)
存放温度:-4-158F (-20-70℃)
电源:18-30VAC RMS 50/60 Hz,或18-42VDC电池
输出:0-10VDC Dwyer CDD型二氧化碳浓度变送器
重量:8 盎司(230g)
Dwyer CDD型二氧化碳浓度变送器