Principle Introduction:
ZE08-CH2O is a general-purpose and miniaturization electrochemical formaldehyde detection module. It utilizes electrochemical principle to detect CH2O in air which makes the module with high selectivity and stability. It is built-in temperature sensor to make temperature compensation. It has the digital output and analog voltage output at the same time. It is a combination of mature electrochemical detection principle and sophisticated circuit design.
Applications :
Portable detector, air-quality monitor, air cleaner, air renewal system, air conditioner, smart home &etc.
Technical parameters :
Tips:For more parameter information, please refer to the latest manual provided by salesman.
| Model No. |
ZE08-CH2O |
| Target Gas |
CH2O |
| Interference Gas |
Alcohol, CO &ect. |
| Output Data |
DAC(0.4~2V standard voltage output ) |
| UART output(3V Electrical Level) |
| Working Voltage |
3.7V~9V( With voltage reverse connect protection) |
| Warm up time |
≤3 minutes |
| Response time |
≤60s |
| Resume time |
≤60s |
| Detection Range |
0～5ppm |
| Resolution |
≤0.01ppm |
| Operating Temp. |
0～50℃ |
| Operating Hum. |
15%RH-90％RH(No condensation) |
| Storage temp. |
0～50℃ |
| Working life |
2 years（in air） |
Reference Circuit :
| PIN |
Instruction |
| Pin4 |
Vin（Voltage input 3.7V～9V） |
| Pin3 |
GND |
| Pin2 |
DAC (0.4～2V,for 0-5ppm) |
| Pin7 |
PWM |
| Pin1 |
HD (Zero calibration，only for factory use) |
| Pin5 |
UART（RXD） 0～3.3V data input |
| Pin6 |
UART（TXD） 0～3.3V data output |
