The XD-41-721 visible Spectrophotometer (transparency meter) can conduct qualitative and quantitative analysis of sample materials in the near-ultraviolet and visible spectral regions. This instrument is a newly developed product to cooperate with the implementation of the "Implementation Rules for the Production License of Hazardous Chemical Coating Products". This instrument is designed and produced according to GB 1721 "Appearance and Transparency Determination of Varnishes, Varnishes and Thinners". The instrument does not require any standard reagents, is very simple and convenient to use, and quantifies the level of product transparency, effectively improving the current method. The test accuracy problem of the national standard.

1) The instrument should be placed in a dry room, the operating temperature is 5℃~35℃, and the Relative Humidity does not exceed 85%.
2) Place it on a sturdy and stable workbench when using it, and avoid strong vibration or continuous vibration.
3) Indoor lighting should not be too strong, and direct sunlight should be avoided.
4) The fan should not blow air directly onto the instrument so as not to affect the normal use of the instrument.
5) Try to stay away from high-intensity magnetic fields, electric fields and electrical equipment that generate high-frequency waves.
6) The power supply Voltage supplied to the instrument is AC220V22V, the frequency is 50Hz1Hz, and a good grounding wire needs to be installed. It is recommended to use AC regulated power supply to enhance the anti-interference performance of the instrument. Use an electronic AC Voltage stabilizer or AC constant Voltage stabilizer with a power of more than 1000W.
7) Avoid use in places with corrosive gases such as hydrogen sulfide and fluorine sulfite.