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A spectrophotometer, also known as a spectrometer, is a scientific instrument that decomposes light with complex components into spectral lines
.
The measurement range generally includes the visible light region with wavelengths ranging from 380 to 780 nm and the ultraviolet region with wavelengths ranging from 200 to 380 nm
.
Different light sources have their own unique emission spectrum, so different luminous bodies can be used as the light source of the instrument
.
Emission spectrum of tungsten lamp: after the spectral light of 380-780nm wavelength emitted by tungsten lamp light source is refracted by a prism, a continuous chromatogram consisting of red, orange, yellow, green, blue, indigo and violet can be obtained; this chromatogram can be used as visible light Light source for the spectrophotometer
.
Routine maintenance Analytical instrument workers should understand the routine maintenance of the instrument and the simple test method for the main technical indicators, and frequently maintain and test the instrument to ensure that the instrument is in working condition
.
1.
Temperature and humidity are important factors that affect the performance of the instrument
.
They can cause corrosion of mechanical parts, reduce the finish of the metal mirror, cause errors or performance degradation of the mechanical parts of the instrument; cause the aluminum film of optical parts such as gratings, mirrors, focusing mirrors, etc.
to corrode, resulting in insufficient light energy, stray light, Noise, etc.
, or even the instrument stops working, thus affecting the life of the instrument
.
It should be calibrated regularly during maintenance
.
There should be an instrument room with constant humidity in all seasons and constant temperature equipment, especially for laboratories located in the southern region
.
2.
Dust and corrosive gases in the environment can also affect the flexibility of the mechanical system, reduce the reliability of various limit switches, buttons, and photoelectric couplers, and are also one of the reasons for the corrosion of the aluminum film of the chemical components
.
Therefore, it is cleaned regularly to ensure the sanitary conditions of the environment and the interior of the instrument, and to prevent dust
.
3.
After the instrument is used, a large amount of dust will accumulate inside.
The maintenance engineer or under the guidance of the engineer regularly opens the instrument cover to remove the dust inside.
At the same time, re-tighten the radiator of each heating element to seal the window of the optical box.
When cleaning, calibrate the optical path, clean and lubricate the mechanical parts, restore the original state, and then carry out some inspections, adjustments and records
.
.
The measurement range generally includes the visible light region with wavelengths ranging from 380 to 780 nm and the ultraviolet region with wavelengths ranging from 200 to 380 nm
.
Different light sources have their own unique emission spectrum, so different luminous bodies can be used as the light source of the instrument
.
Emission spectrum of tungsten lamp: after the spectral light of 380-780nm wavelength emitted by tungsten lamp light source is refracted by a prism, a continuous chromatogram consisting of red, orange, yellow, green, blue, indigo and violet can be obtained; this chromatogram can be used as visible light Light source for the spectrophotometer
.
Routine maintenance Analytical instrument workers should understand the routine maintenance of the instrument and the simple test method for the main technical indicators, and frequently maintain and test the instrument to ensure that the instrument is in working condition
.
1.
Temperature and humidity are important factors that affect the performance of the instrument
.
They can cause corrosion of mechanical parts, reduce the finish of the metal mirror, cause errors or performance degradation of the mechanical parts of the instrument; cause the aluminum film of optical parts such as gratings, mirrors, focusing mirrors, etc.
to corrode, resulting in insufficient light energy, stray light, Noise, etc.
, or even the instrument stops working, thus affecting the life of the instrument
.
It should be calibrated regularly during maintenance
.
There should be an instrument room with constant humidity in all seasons and constant temperature equipment, especially for laboratories located in the southern region
.
2.
Dust and corrosive gases in the environment can also affect the flexibility of the mechanical system, reduce the reliability of various limit switches, buttons, and photoelectric couplers, and are also one of the reasons for the corrosion of the aluminum film of the chemical components
.
Therefore, it is cleaned regularly to ensure the sanitary conditions of the environment and the interior of the instrument, and to prevent dust
.
3.
After the instrument is used, a large amount of dust will accumulate inside.
The maintenance engineer or under the guidance of the engineer regularly opens the instrument cover to remove the dust inside.
At the same time, re-tighten the radiator of each heating element to seal the window of the optical box.
When cleaning, calibrate the optical path, clean and lubricate the mechanical parts, restore the original state, and then carry out some inspections, adjustments and records
.
