Description

The MiCS-5521 is a resistive sensor that responds to a great variety of gases, such as Carbon Monoxide (CO), Hydrocarbons and Volatile Organic Compounds. It’s resistance varies between 1000kΩ and 2kΩ approximately. Like the MiCS-2610, the MiCS-5521 is powered through a 2.5V voltage regulator, with consumption of approximately 32mA. The sensor’s resistance in air, as well as its sensitivity, can vary between different units, so it is recommended to calibrate each one of them before finally inserting them in the application.

Gases: CO, Hydrocarbons, Volatile Organic Compounds *
Measurement range: 30 ~ 400ppm
Air resistance: 100 ~ 1000kΩ
Sensitivity: 1.8 ~ 6 (typically 3, ratio between the resistance at 60ppm and at 200ppm of CO)
Supply voltage: 2.1 ~ 5V DC
Operating temperature: -30 ~ +85ºC
Response time: 30 seconds
Average consumption: 32mA