20-year environmental temperature and humidity control solution provider
The core of SemSong industrial Dry cabinet is to protect sensitive items by automatically controlling the humidity. It is mainly divided into two types: the electronic dehumidification type and the nitrogen replacement type. The operation is largely similar.
Working principle
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Electronic dehumidification type (mainstream):
Physical adsorption: Built-in high-efficiency desiccants (such as molecular sieves, silica gel) adsorb moisture in the air through their porous structure.
Semiconductor condensation: Utilizes the principle of semiconductor cooling plates (TEC), causing water vapor in the air to condense on the condensation surface and be discharged.
Intelligent control: A humidity sensor continuously monitors the humidity inside the box. When it exceeds the set value, the dehumidification module (heating to regenerate the desiccant or starting the semiconductor cooling) is automatically activated, and stops when the humidity reaches the set value, achieving automatic cycle control.
Nitrogen purge type:
By filling the box with high-purity nitrogen gas to dilute and discharge the air containing water molecules, an inert environment with low humidity and low oxygen is formed inside the box. This method not only prevents moisture but also effectively prevents the oxidation of items, and is particularly suitable for storing precision electronic components, optical parts, etc. that are extremely sensitive to oxygen.
Operation method
Power-on Preparation:
Place the moisture-proof box on a flat, stable surface that is level, sturdy, and away from heat sources and direct sunlight. Keep at least 5 centimeters between the rear or side of the box and the wall to facilitate heat dissipation and ventilation.
Connect the power supply (usually 220V/50Hz).
Parameter Settings:
For the first use or after a long period of inactivity: It is recommended to run the empty box for 12-24 hours to ensure that the humidity inside the box drops to a stable and low level.
Set the required humidity value through the buttons on the control panel. Different items have different humidity requirements. For example, electronic chips may require less than 40%, while paper materials can be maintained at around 50%-60%.
Daily access:
Door opening operation: Try to open and close the box door as quickly as possible (it is recommended to control within 1 minute), to reduce the entry of external moisture.
Item placement: It is recommended to enclose the items in anti-static bags before placing them in the box, and mark the warehouse number on the bag for management.
Humidity recovery: After placing the items, the humidity inside the box will temporarily rise. It usually takes 1-2 days for it to automatically return to the set value.
Maintenance and Care:
Regular inspection: Check if the humidity display is accurate. If there is a significant deviation, calibration according to the manual is required.
Cleaning: Regularly remove dust and debris from the box to keep the desiccant area clean.
Maintenance: If the dehumidification effect significantly decreases, it may be due to the saturation of the desiccant or a malfunction of related components. Contact a professional for maintenance or replacement.
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