Effect of humidity on the Optical Emission Spectrometer

When some customers purchase Jinyibo Optical Emission Spectrometer, before shipment and installation, after-sales will call to confirm the customer's purchase of some related accessories, such as air conditioners, temperature and humidity meters.  In fact, these are necessary measures to ensure the service life of the instrument. In order to ensure that the temperature in the relative space is 10 ° C-30 ° C and the relative humidity is 20% -80%.  If the humidity is too high (too humid), it will adversely affect the Optical Emission Spectrometer, and in serious cases, it will cause harm and cause the instrument to malfunction.

1. The influence of humidity on the performance of the Optical Emission Spectrometer: As a large-scale precision instrument product integrating mechanical, electronic, optical, vacuum, and electronic, the Optical Emission Spectrometer has a complicated structure, high technical requirements, and complicated electronic circuits. Manufacturers and users require Optical Emission Spectrometer.  The entire spectrometer must be operated and placed under dry conditions.  If the time is too long in the high humidity environment during the entire process from production to user use, it will affect the performance of the Optical Emission Spectrometer product, which will seriously cause failures and cause unnecessary impact on after-sales service.  2. The effect of humidity on mechanical parts and metal materials: The main structure of the Optical Emission Spectrometer is made of metal. The material is mainly steel. Electrical circuits and electronic components also contain a large amount of conductive and magnetic metals. These metals are in humidity. Metal corrosion and rust occur in an excessively high environment. When the relative humidity reaches a certain value, the corrosion of the metal will quickly accelerate. The properties of iron and steel due to metal corrosion (such as rust) will change. Copper, aluminum, and silicon metal will lose itself due to corrosion.  Due performance.  3. The influence of humidity on electrical circuits and electronic components: The electrical system and electronic circuits of Optical Emission Spectrometers are quite complicated and cumbersome. The effect of humidity on these components and components will cause poor contact of circuit board connectors and electronic components.  Parameters decrease, electrical line performance is unstable, detection and analysis data drift.  4. The effect of humidity on optical components and other components: When the air temperature is 25-30 ° C and the relative humidity is 75% -95%, it is a good climatic condition for mold reproduction.  Moist and non-convective air will rapidly accelerate mold growth.  The mold spots produced by molds are attached to the surface of optical components and other components. In severe cases, they can affect the optical properties of optical components, such as light transmittance, reflectance, and refraction.  The adhesion of mold spots on the surfaces of conductive metals and electrical contact materials will increase the contact resistance and cause creepage of high-voltage circuit boards, thereby reducing the accuracy of the instrument or causing instrument failure, and even burning the instrument.  High-voltage creepage caused by mold 5. The effect of humidity on the vacuum system: Air is composed of nitrogen, oxygen, other gases, water vapor, and so on.  The so-called humidity is the mass of the water vapor in the air.  If there is water vapor in the vacuum system, it will also affect the components of the vacuum system.  If the humidity is high, the moisture of the components will reduce the sealing performance of the instrument, and even cause the vacuum system to leak. The vacuum cannot be drawn to the specified range of the instrument, which will prevent the Optical Emission Spectrometer from performing a long analysis test.