I. Main technical features 1. Vertical type and uni-body design. No need to install. 2. This instrument is composed of air circuit system, vibration unit, scale indicator, illumination and UV-light detecting component. 3. Two pieces of imported precise glass tube adsorption column.Convenient for operation. 4. Equipped with a adsorption column cleaning unit. Solve the problem for cleaning the adsorption column. II. Main technical specifications 1. Power supply: AC220V±5%,50Hz 2. Pressure regulating range of reducing valve:(0~400)kPa 3. Electric agitator: independently controlled for each way 4. Ultraviolet light source pipe: 1220mm in length,wavelength is 365mm±5nm 5. Illuminating lamp: 1220mm in length,power is 40W 6. Air supply: Nitrogen cylinder (or air compressor,compressed air bottle) 7. Ambient temperature: (5~35)ºC 8. Relative humidity: ≤85% 9. Dimension: 350mm×400mm×1770mm 10. power consumption: 600W