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KGD - MQ - 517 Ultraviolet Hydrogen Sulfide Analyzer
Product Introduction
The KGD - MQ - 517 Ultraviolet Hydrogen Sulfide Analyzer is a new - generation hydrogen sulfide analyzer independently developed based on ultraviolet absorption spectroscopy gas analysis technology. It adopts a unique algorithm and a high - precision gas cell, with strong anti - interference ability and high measurement accuracy. It has a selectable measurement range and good stability, and can replace the electrochemical gas analysis technology with a short service life and easy wear, as well as the gas chromatography technology which is expensive and unable to perform real - time monitoring.

Product Features
Technical Parameters
| Measured Component | H₂S | 
| Measurement Range | 0 - 25000ppm; Measurement range is selectable | 
| Accuracy | ±2%F.S. | 
| Resolution | 1ppm | 
| Repeatability | <2% | 
| Response Time | T90 < 30s | 
| Optimal Flow Rate | (0.7 - 1.2) L/min | 
| Inlet Pressure | (2 - 50) kPa | 
| Gas Requirements | Dust - free, water - free, oil - free | 
| Operating Temperature | (5 - 35)℃ | 
| Electrical Parameters | Electrical Parameters | 
| Communication | RS - 485/RS - 232, (4 - 20)mA | 
| Power Supply | Rated voltage 220V ± 22V, frequency 50Hz ± 1Hz | 
| Display | LCD Display | 
| Alarm Output | Passive contact signal | 
| Functional Configuration | Has a self - diagnosis function, enabling on - line inspection of sensor status | 
| Built - in zero - adjustment air pump, which can realize automatic air zero - adjustment |