The US-500A sulfur dioxide analyzer uses deep ultraviolet long path spectral differential absorption technology to monitor low concentrations of sulfur dioxide in ambient air. The instrument consists of a high-performance and long-life deuterium lamp light source, a corrosion-resistant deep ultraviolet long path absorption cell, and a high-resolution ultraviolet spectrometer. The instrument has an absorption effect on the ultraviolet characteristic spectrum through SO2 molecules and satisfies Lambert Beer's law, thereby analyzing SO2 concentration. The instrument is widely used in fields such as ultra-low continuous emission of flue gas, monitoring of desulfurization and denitrification processes, and environmental monitoring of waste incineration.

Product Features

1、 The analyzer is equipped with a deep ultraviolet long path absorption cell, which has the characteristics of high measurement accuracy and strong corrosion resistance;
2、 The instrument is equipped with a high-performance, long-life deuterium lamp light source and a high-resolution deep ultraviolet spectrometer, which have the characteristics of long service life and good stability;
3、 The instrument has a built-in memory that can store 5000 sets of data and can also export data to a PC;
4、 Provide RS485 interface, which can be used for communication with the upper computer;
5、 The instrument has the characteristics of easy use and maintenance, and simple operation.

Technical Parameter

Range: 0-50ppm/0-200ppm
Minimum detection limit:<0.1 ppm
Zero drift:<0.1 ppm/24h,<0.3 ppm/7d
Response time:<30s
Linearity:<± 1% F · S
Resolution: 0.01ppm
Measurement repeatability:<± 1% F · S
Measurement accuracy:<± 1% F · S
Gas flow rate: 1-1.3L/min
Instrument size: 600mm × 435mm × 180mm
Communication method: RS485