MEMS Hydrogen sulfide H2S Sensor
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Introduction
H2S sensor is MEMS-technology based gas sensor with semiconductor nano material as sensing material, which can detect H2S of different concentrations in different environmental conditions.Characteristic
The sensor has the characteristics of small size, low power consumption, high sensitivity, long lifetime and so on.Main application
•Air cleaners and purifiers; Food freshness monitoring; Portable air detector;
•Public toilet odor monitoring; Deodorant Machine etc…Technical Parameters
Sensor Model
S1007
Sensor style
MEMS semiconductor sensor
Standard Package
Ceramic Package
Detected Gas
H2S
Detection Range/ppm
0 ~ 3 ppm (H2S)
Resolution/ppm
0.01 ppm
Circuit Voltage
Circuit Voltage
VC
5V or 3.3V DC
Heating Voltage
VH+
1.8 ± 0.05 V DC
Load Resistance
RL
Adjustable
Sensor Unit Characteristics
Heating Resistance
RH
43±5 Ω(Room Temperature）
Heating Power
RH
≤ 36mW
Sensor Resistance
Rs
10~100 KΩ(in air)
Sensitivity
S
R0 (in air)/Rs (in 0.2 ppm H2S) ≥ 1.8
Slope
a
≤ 0.5(R 1 ppm/R 0.2ppm（H2S）
Standard Test Conditions
Temperature
Humidity
20±2 ℃；55±5% RH
Standard Test
circuit
VC :5 V or 3.3±0.1 V VH :1.8V±0.05V
Preheating time
3-5 min
Response Time（T90）
<30 s
Recovery Time（T10）
<60 s
Expected Lifetime
≥3 Years
