Principle Introduction:
MIX2801 is a general-purpose and high-performance gas module with electrochemical gas sensors. It uses three electrodes, electrochemical gas sensor and high-performance micro-processor. By installing different gas sensor, the module could detect relevant gas. It is with built-in temperature sensor to make temperature compensation, which makes it could detect the gas concentration accurately.
It has the digital output and analog voltage output at the same time which facilities the usage and calibration and shorten the development period. It is a combination of mature electrochemical detection principle and sophisticated circuit design, to meet customers’ different detection needs.
Feature:
* High sensitivity and Accuracy to toxic gas
* Long life, low power consumption
* Good stability
* UART and analog voltage signal output
Application:
* Portable gas detector
* Fixed gas alarm and detector
Technical Parameters :
Item | Specification |
Target Gas | CO,H2S,O2,NH3,NO2,O3,N2,SO2,CL2,HF,H2,PH3,HCL etc. |
Measurement Range | Refer table 2 |
Operating Voltage | DC 5±0.1V DC |
Operating Current | < 10 mA |
Output | UART(TTL electrical Level, 3V) Analog voltage(refer table 2 for sensor original amplifying signal) |
Operating Conditions | -20~25℃/15~90%RH(no condensation) |
Storage Conditions | -20~50℃/15~90%RH(no condensation) |
Size | ø23.5mm*24.5mm |
Life Expectancy | 2 years(in air) |
Measurement Range and signal output:(Table 2)
Target Gas | CO | O2 | NH3 | H2S | NO2 | HCL |
Measurement Range | (0-1000)ppm | (0-25)%VOL | (0-100)ppm | (0-100)ppm | (0-20)ppm | (0-10)ppm |
Resolution | 1 ppm | 0.1%VOL | 1 ppm | 1 ppm | 0.1 ppm | 0.1 ppm |
Output in the air(V0) | (0.3-3)V | (3-0.3)V | (0.3-3)V | (3-0.3)V | (0.3-3)V | (0.3-3)V |
Response Time(T90) | ≤30S | ≤15S | ≤150S | ≤30S | ≤30S | ≤60S |
Target Gas | H2 | PH3 | SO2 | O3 | CL2 | HF |
Measurement Range | (0-1000)ppm | (0-1000)ppm | (0-20)ppm | (0-10)ppm | (0-10)ppm | (0-10)ppm |
Resolution | 1 ppm | 0.1 ppm | 0.1 ppm | 0.1 ppm | 0.1 ppm | 0.1 ppm |
Output in the air(V0) | (0.3-3)V | (0.3-3)V | (0.3-3)V | (3-0.3)V | (3-0.3)V | (0.3-3)V |
Response Time(T90) | ≤120S | ≤30S | ≤30S | ≤120S | ≤30S | ≤60S |