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New products
AQMs
Mobile monitoring
VOCs
Particle composition
Air samplers
VOCs pollution sources
CEMs
Sampling and analysis
Mercury
Cooking fume
Automobile exhaust
Site dust monitoring
Water quality
Calibrators and lab
Agents
Th-2002h ultraviolet fluorescence sulfur dioxide analyzer (portable)
Th-2002h ultraviolet fluorescence sulfur dioxide analyzer (portable)
Product Description:
Consult Now Introduction
Product Description

The instrument adopts ultraviolet fluorescence method. The basic working principle is as follows: the zinc lamp emits ultraviolet light, which is filtered by a monochromatic filter into a monochromatic light with a wavelength of 214nm, which is focused on the SO 2 reaction chamber. The SO 2 in the sample gas absorbs the ultraviolet light and produces an energy level transition. SO 2 changes from the ground state to the excited state, and the excited state so 2 is unstable. A fluorescence with the central wavelength of 330 nm is emitted instantaneously The concentration of SO2 is proportional to the concentration of SO2, and the optical signal is transformed into electrical signal by photomultiplier tube. In order to eliminate the measurement error caused by the fluctuation of the light path, two monitoring channels are used in the optical path. One is to measure the fluorescence intensity excited by the light path of the sample gas, and the other is to measure the reference light path to monitor the change of the light source of the zinc lamp and automatically compensate for the change of the light source.

Features
◆ The monitoring value can be switched between ppb, ppm, μ g / M 3 and Mg / M 3.
◆ Chinese and English menu operation interface, easy to operate.
◆ Automatic range conversion function.
◆ The monitoring value can be displayed graphically and the graph curve can be zoomed freely.
◆ It has the function of temperature and pressure automatic compensation.
◆ Adaptive optimization algorithm is used to achieve the best response time and signal-to-noise ratio.
◆ Support remote calibration and remote diagnosis of internal working parameters.
◆ Storage, query and output of massive historical data (one every 5min).
◆ It has multi parameter alarm function.
◆ Monitor and compensate the light intensity of zinc lamp to improve the stability of light intensity.
◆ It can be used for more than 10 hours at a time.
◆ It can be turned on in advance for quick monitoring.
◆ It is suitable for emergency monitoring and comparative monitoring.
Scope Of Application
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