Working Principle:

When a hydrogen sulfide analyzer is used to measure hydrogen sulfide in the air, the electrochemical sensor reacts directly with the gas in the environment through diffusion, producing a linearly changing voltage signal. The signal is amplified by a linear amplifier and input into the A/D converter in the microcontroller to be converted into a digital signal. After data processing by the microprocessor, the concentration of hydrogen sulfide is displayed on the digital tube. When the concentration of hydrogen sulfide exceeds the set alarm point, the instrument emits an audible and visual alarm signal. The instrument has battery undervoltage alarm and automatic shutdown function.

The functional characteristics of hydrogen sulfide analyzer:

1. It can simultaneously display the concentration and absorbance value of hydrogen sulfide;

2. Built in rechargeable battery, suitable for quantitative determination of free hydrogen sulfide concentration in indoor and field samples;

3. It is controlled by a microcontroller and has spectral data processing function;

4. Large screen LCD Chinese display, intelligent control by microcontroller, human-machine interactive operation, with functions of measurement, setting, recording, saving, and data statistical processing;

5. The chemical reagent package for color development requires less sample and reagent usage, preventing and reducing secondary pollution;

6. Real time display of ambient temperature, adjustable color rendering time for easy experimental operation.

Basic configuration of hydrogen sulfide analyzer:

host;

Sample pre-treatment equipment;

Hydrogen sulfide separation and reaction device;

Microcomputer interface and data processing software;

Reagents.