$48.00
Application:Portable and fixed type hydrogen sulfide monitor, and H2S detector.
Feature:MEMS technology, Strong construction,Small sizes and low power consumption,High sensitivity to H2S gases,Fast response and resume,Simple drive circuit, Long lifespan

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Availability: 487 In Stock

Production Description:
MEMS H2S gas sensor is using MEMS micro-fabrication hot plate on a Si substrate base, gas-sensitive materials used in the clean air with low conductivity metal oxide semiconductor material. When the sensor exposed to gas atmosphere, the conductivity is changing as the detected gas concentration in the air. The higher the concentration of the gas, the higher the conductivity. Use simple circuit can convert the change of conductivity of the gas concentration corresponding to the output signal.
Feature:

  • MEMS technology, Strong construction
  • Small sizes and low power consumption
  • High sensitivity to H2S gases
  • Fast response and resume
  • Simple drive circuit, Long lifespan

Application:
Portable and fixed type hydrogen sulfide monitor, and H2S detector.
Technical Parameters:

Part No.

GM-602B

Sensor Type

MEMS

Standard Encapsulation

Ceramic

Detection Gas

H2S & Benzene etc.

Detection Range

0.5~50ppm (H2S)

Standard Circuit

Conditions

Loop Voltage

VC

≤24V DC

Heater Voltage

VH

1.9V±0.1V AC or DC

Load Resistance

RL

Adjustable

Sensor character under standard test conditions

Heater Resistance

RH

80Ω±20Ω(room temperature)

Heater consumption

PH

≤40mW

sensitive materials resistance

RS

1KΩ~30KΩ(in 50ppm H2S )

Sensitivity

S

R0(in air)/Rs(in 50ppm H2S)≥3

Concentration Slope

α

≤0.6(R200ppm/R50ppmH2S )

Standard test conditions

Temp. Humidity

20℃±2℃;55%±5%RH

Standard test circuit

VH:1.9V±0.1V;VC:5.0V±0.1V

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