CDT71 Wall-mounted Carbon Dioxide Transmitter is based on the fact that different gases have different absorption capabilities for infrared light in a specific band. It measures the concentration of the measured gas by measuring the degree of infrared I ight absorption. Compared with electrochemical sensors, it has the characteristics of long life and good stability, wide power supply range and power supply antireverse connection protection. It is suitable for indoor air quality detection, air conditioners, air purifiers, vegetable green houses and other occasions to measure carbon dioxide gas.
Multiple signal output types, suitable for various processing equipment
Up to 5 years of service life
The protection level is Ip6x
| Measured concentration | ±(40PPm+3%Fs)@25℃ | |||
| Preheat time | 2min(available)-10min(maximum accuracy) | |||
| Accuracy | 0-2000PPM/0-5000PPM/0-10000PPM | |||
| Service life | >5 years | |||
| Operating conditions | ||||
| Temperature | Working:-10...+50℃[+14...+122°F] | |||
| Working humidity | 0-80%RH(no condensation) | |||
| IP grade | IP6X | |||
| Electrical overview | ||||
| Electrical properties | 3-wired | 4-wired | ||
| Output signal | 4...20mA | 0...5V | 0...10V | RS485 |
| Working voltage | 10...30Vdc | 1...30Vdc | 16...30Vdc | 10...30Vdc |
| Wiring instructions | ||||
| RS485 digital output type wiring | ||||
| Power supply | Red | Positive power | ||
| Black | Negative power | |||
| Communication | Green | 485-A | ||
| White | 485-B | |||
| Voltage/Current analog output type wiring | ||||
| Power supply | Red | Positive power | ||
| Black | Negative power | |||
| Communication | Green | Voltage/Current output positive | ||
| White | Voltage/Current output negative | |||
