What brand is good in moistureproof box?

Moistureproof box. Go to the doctor. That doctor's is the best!

The doctor lives in moistureproof box. Steering system no-load test

At present, electronic moistureproof box sells well in the market, and there are many brands, both domestic and imported, with different performances and different prices. The popular types of electronic moistureproof box in the market are briefly introduced:

I. Categories of electronic moistureproof box:

Anti-mildew electronic moistureproof box for photographic equipment can be divided into two categories: low-temperature electronic moistureproof box and normal-temperature electronic moistureproof box. Room temperature automatic electronic drying oven is the mainstream product of electronic drying oven in the market at present, which adopts moisture-absorbing materials and suction electronic automatic moisture-proof system. Because it adopts suction dehumidification at room temperature, it has the characteristics that the dehumidification efficiency is not affected by environmental humidity, and even in dry winter, the humidity in the controlled space can be easily reduced to below 20%. Secondly, the difference between the structure and performance of the normal temperature standard automatic drying oven: mechanical humidity sampling and control display type, which is low in price, is mechanically driven by a drying gas generator composed of memory alloy spring, return spring and connecting rod, and the dehumidifying program is fixed and controlled by an electronic timer, and the current humidity in the oven is indicated by a mechanical pointer hygrometer; The drying process is natural convection infiltration. Its disadvantages are: the response is slow, the lag time can even be as long as 20 minutes, and it can't respond to the change of humidity in time; The sensitivity is relatively low, and it can't respond to the change of trace moisture; The control accuracy is poor, the plastic film is greatly influenced by the environment, and the drift value of the control point is large. Due to the lack of control accuracy, generally only "high, medium and low" indicates the humidity control range in the box; The service life is relatively short. Moreover, the plastic film material itself is unstable, easy to age and deteriorate, affecting its life; Humidity indication is simple, because this kind of mechanical humidity sensor has no humidity electrical signal output and cannot realize digital display, so most of them are equipped with mechanical pointer hygrometer to display the humidity in the box. Mechanical humidity display model: The humidity sensor of mechanical pointer hygrometer is made of hair or coated with polymer hydrophilic plastic material on the metal hairspring, so it has almost the same weakness as the mechanical humidity sensor, such as slow response, long lag time, low sensitivity, inability to respond to trace moisture changes, low indication accuracy and large display error, generally within 5%. Up to 10%, with large drift value, instability, easy aging and deterioration, and relatively short service life; Although it can't be measured accurately and reliably, the displayed value can only be used as a reference, but because of its low price (only tens of RMB), it can work without electrical signals, so it has been widely used in ordinary electronic drying boxes.

Electronic humidity sampling and control display model: this model generally adopts electronic humidity sensor, which can capture the slight change of air humidity, with high sensitivity, good linearity, small error, small drift value and high control accuracy. Because the electronic humidity sensor of measuring grade is adopted, the error is about 3% and the stability is good, so it is used in the electronic drying oven of special precision control occasions. It is the first choice for mildew-proof purification and preservation of cameras and their image recording media in normal temperature electronic drying oven. An electronic drying oven with an electronic humidity sensor can convert humidity changes into electrical signals for output, thus realizing digital display. Because the signal sources of sampling control and display are the same, the cumulative error caused by sampling control and display separation is avoided, so the total error of sampling control and display is the linear error of electronic humidity sensor itself, and the linear error can be adjusted by compensation circuit to further improve the accuracy. Although the moistureproof box cost and price of electronic humidity sampling control display are higher than those of mechanical products, it is still the focus of general photographers from the perspective of long-term effective and safe preservation and considering the quality and life of products, and it can better meet the requirements of cameras and their image recording media for purification and preservation, which is the development direction of electronic automatic moistureproof box.

How to choose the right electronic moistureproof box electronic automatic moistureproof box is a special product, and its maintenance needs special conditions. For example, the failure of memory alloy cannot be repaired by general home appliance maintenance department, and the adjustment of sensor and hygrometer also needs special artificial environment. Therefore, when purchasing, we should consider whether the product has reliable performance and the service life is as long as possible; Choose legal products with maintenance guarantee and reliable sources of spare parts in the future to ensure that the purchased products can be used for a long time and the maintenance is guaranteed. First, for ordinary non-professional photographers and a few camera collectors, we suggest choosing the model of electromechanical integrated humidity sampling and control display (mostly using memory alloy spring-driven dehumidification valve to open, static dehumidification, mechanical hygrometer display). Although the humidity display of independent mechanical instrument is not accurate enough, the preset humidity range of "high", "medium" and "low" of the machine itself is not affected due to the electromechanical integration control. Secondly, for professional photographers or business occasions, as well as professional users with high requirements for preservation conditions and users who want to store valuables or important materials or even keep them for several years, we suggest choosing professional-grade products with electronic humidity sampling, control and display. The difference between static dehumidifier and dynamic high-speed dehumidifier is not very big, but the effect is far from each other. Moreover, the dehumidifying speed of the electronic automatic moistureproof box is also affected by the environmental humidity, which changes greatly. Things to be stored in the box in the future, or when things are often taken and put in the future, or some items with high water content are placed. If there is no room, once the door is opened, the humidity will drop in two or three days, which obviously fails to achieve the goal of optimal selection. Now some self-employed or small photo studios buy static dehumidification products because they want to save money. In fact, I open the door several times a day to get the equipment, but the humidity has not dropped to a safe range, and the result is useless. Compared with spending a little more money, the reliability of products and the long-term safety of stored items are the first. In addition, try to buy a larger drying box to prepare for the increase of items in the future.

● The core of Dr. Na's electronic moistureproof box dehumidifier is controlled by microcomputer technology, which is sensitive to humidity and has higher precision. It belongs to an intelligent detection control system, which can automatically detect the change of humidity in the box and intelligently adjust the dehumidification time according to the change of humidity in the box, so that the equipment can run more stably and save energy. For example, if you set it to 40%RH, the humidity of the equipment will be controlled near the set value after running for a period of time. When the humidity in the cabinet reaches the set value, it will automatically enter the constant humidity state, only when the humidity in the cabinet deviates from the set value of +3%RH. The system will work again, automatically start the dehumidification command, and then automatically shut down when it drops to 40%. The humidity is accurate and stable, and it will not rise and fall.

● The temperature and humidity values are directly displayed on the LCD screen, which is more intuitive and has no error; The control panel adopts key-type humanized operation, which is simple and easy, and the humidity value can be adjusted. The humidity of 25-55% can be set freely according to your own needs, and the storage humidity conditions are tailored for your favorite things, providing a more reliable and safe dehumidification environment.

Dr. moistureproof box subverted the traditional working mode of fixed time and variable humidity in moistureproof box.

Adopt brand-new dehumidification technology to dehumidify at fixed points to ensure humidity stability.