7E4-H2S-10 PN: 052-1900-200 Hydrogen Sulfide Gas Sensor For Environmental Quality Monitoring

7E4-H2S-10 PN: 052-1900-200 Hydrogen Sulfide Gas Sensor For Environmental Quality Monitoring

Description:

This 4-electrode sensor is designed for air quality monitoring to mea- sure the low-concentration H2S gas with ultra-high resolutions. The de- sign optimizes the sensor sensitivity, accuracy and long-term stability and enables the sensor to detect H2S variations at parts per billion (ppb) levels.

Product Features:

1. Ultra - high - resolution Detection : It is a 4 - electrode sensor, planned for air quality surveillance, being able to measure low - concentration hydrogen sulfide gas, and its resolution can reach 2ppb.
2. Precise Measurement : Utilizes a four - electrode structural design and a compensation algorithm to enhance the accuracy of low - concentration gas measurement.
3. Good Sensitivity and Responsiveness : At 20℃, the sensitivity is 1.5±0.5μA/ppm, and the response time (T90) is less than or equal to 90 seconds, which can promptly reflect the change of H₂S concentration.
4. Stable Output : The zero signal at 20℃ is less than ±300nA, and within the temperature range of - 30℃ to 50℃, the baseline drift is less than 100ppb, which can maintain stable operation in a wide temperature range.
5. Strong Environmental Adaptability : The applicable temperature is from - 30℃ to 50℃, the pressure is 1±0.1 standard atmosphere, and the humidity range is 15% - 90%RH without condensation, which can be competent for a variety of general natural and industrial environments.
6. Long - lasting Service Life : In clean air, the expected operation life is 2 years, with long - term stability, and the long - term output drift is less than 10% of the signal value per year.
7. Intrinsic Safety : When the H₂S concentration is 30ppm, the maximum current is less than 0.2mA, the maximum open - circuit voltage is 1.3V, and the maximum short - circuit current is less than 1.0A, reducing the risk of danger when used in flammable and explosive environments.
8. Simple Installation : The shell is made of ABS material, weighing about 8 grams, and there is no special installation direction requirement, which is convenient for integration and installation in various detection devices.
9. High - quality Anti - interference Capacity : The sensor has certain selectivity for hydrogen sulfide. As can be seen from the cross - sensitivity data, when the concentrations of common interfering gases such as nitrogen dioxide, chlorine, and nitric oxide are 5ppm, the equivalent output signals equivalent to H₂S are all very low, which are - 1.5ppm, - 0.5ppm, - 0.2ppm respectively, and have little interference with the measurement of hydrogen sulfide.

Product Applications:

1. Environmental Quality Monitoring: Used in the ambient air quality monitoring in meteorological departments and environmental protection departments, to detect the concentration level of hydrogen sulfide in the atmosphere, and help evaluate regional air pollution status and environmental quality .
2. Industrial Workplace Detection: In chemical plants, oil refineries, paper mills and other factories, during production processes such as chemical reaction, petroleum refining, and pulp cooking, hydrogen sulfide may be generated . This sensor can be installed in workshops and waste gas treatment facilities to monitor H₂S leakage in real - time, to ensure the safety of employees and prevent environmental pollution .
3. Garbage Treatment Sites: In landfills and garbage transfer stations, the anaerobic decomposition of organic matter by microorganisms will produce hydrogen sulfide gas. The 7E4 - H₂S - 10 sensor is used to detect the hydrogen sulfide concentration in the gas at these sites, which is beneficial to the management of the treatment process and the protection of the health of site workers.
4. Sewage Treatment Industry: In sewage treatment plants, the decomposition of sulfur - containing organic matter in sewage will release hydrogen sulfide. The sensor is equipped in sewage pump rooms, aeration tanks and other positions, which can detect hydrogen sulfide gas in time, providing data support for sewage treatment operation adjustment and facility corrosion prevention.
5. Mine Safety Detection: Mines such as coal mines may have hydrogen sulfide gas, which poses a threat to the safety of miners. The sensor can be used in underground roadway, working face and other areas, to monitor hydrogen sulfide concentration, so as to avoid the occurrence of gas poisoning and explosion accidents caused by hydrogen sulfide gas leakage .

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