• ZE07-CH2O-Manual

ZE07-CH2O-Manual

  • • Electrochemical principle
  • • Output DAC(0.4-2V) and UART

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Principle Introduction:
ZE07-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 a combination of mature electrochemical detection principle and sophisticated circuit design.
Applications :
Portable detector, air-quality monitor device, air fresher, fresh air ventilation system, air-condition, smart home device &etc.
Technical parameters :
Model No. ZE07-CH2O
Target Gas CH2O
Interference Gas Alcohol, CO &etc.
Output Data DAC(0.4~2V standard voltage output)
UART Output(3V Electrical Level)
Working Voltage 3.7V~9V (No 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 :
PIN15 Vin (Voltage input 3.7V-9V)  
PIN5、PIN14 GND  
PIN1 VOUT(Voltage output 3.0V)  
PIN3 Reserved  
PIN4 Reserved  
PIN7 UART (RXD) 0~3.0V Data input  
PIN8 UART(TXD) 0~3.0V Data output  
PIN9 Sensor Analog signal  
PIN10 DAC 0.4V-2V (0-full measuring range)  
PIN2/PIN6/PIN11/PIN12/PIN13 NC

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