News

        The technical indicators of the drying oven mainly include: temperature range, temperature resolution, temperature fluctuation (temperature accuracy), temperature uniformity, inner tank size, external size, shape, timer, observation window, Inner tank material, outer material, temperature control method, blower, vacuum pump, baffle, sealing ring, etc.

        The temperature range refers to a range of the operating temperature of the drying oven. Generally, the temperature range of the drying oven is from 10 degrees above room temperature to 300 degrees. The temperature range of the vacuum drying oven is a little smaller, from room temperature to 200 degrees and some manufacturers to 250 degrees. Some customers require 0-300 degrees or 10 degrees to 300 degrees. At this time, it is necessary to explain to the customer that the drying oven can be kept at a constant temperature from above the room temperature, and cannot be controlled below the room temperature.

        Temperature resolution refers to the precision that the drying oven instrument can control. Generally, the drying oven we come into contact with can only be controlled to one digit after the decimal point, which is 0.1℃.

        Temperature fluctuation is also called temperature control accuracy, which refers to the change in a period of time when the drying oven is set at a certain temperature point. The industry standard is that the fluctuation is ±1℃ , that is, the temperature fluctuation does not exceed 1 °C.

        Temperature uniformity refers to the temperature difference between various points inside the drying box. The industry standard is no more than ±2.5%×maximum temperature. The temperature difference between each point will not exceed 5 degrees.

        The size of the inner tank refers to the size of the inside of the drying box, also called the studio size or the effective use size.

        Outer dimensions and shapes refer to the dimensions and shapes of the outside of the drying box. There are two kinds of dimensions of the drying box, desktop and vertical. The desktop drying box is placed on the table when it is used. It is generally longer but the height is relatively short. angle, generally higher.

        The timer refers to a device attached to the drying box that can control the working time. Generally, the longest time of the drying box can be up to one week.

        The observation window refers to a piece of tempered glass outside the drying box, through which the drying condition of the inside can be seen. Except for Yuejin's old 101 and 202 series, basically all brands of boxes have observation windows.

        Inner tank material refers to the material of the drying box studio, generally mirror stainless steel (304 material, not corrosion-resistant), and some products are iron material with a layer of zinc coating on the outside, also It's called galvanized sheet.

        External material refers to the material of the drying box shell, which is generally sprayed, just like the computer shell.

        The temperature control method refers to which method is used for the temperature control instrument of the drying box. Generally, it is a microcomputer digital display temperature control (P.I.D control), and a certain temperature can be automatically set by digital setting. There are also some old products that use rod adjustment control or thermometer temperature control.

        The blower is only available in the blast drying oven. The purpose is to speed up the drying speed and improve the uniformity of the temperature in the oven. The blower cannot be turned off when the blast drying oven is working, and the wind speed of the blower is not adjustable.

        Vacuum pump is a matching product of vacuum drying oven, which is used to extract vacuum for vacuum drying oven. Generally, it can be equipped with a pumping rate of 1L/S or 2L/S.

        Clapboard refers to the bracket inside the drying box, which is used to put dry items. According to the size of the inside of the drying box, there are standard number of clapboards. The clapboard can be adjusted up and down according to the usage. Height, the blast drying oven can also increase the number of partitions according to customer requirements, but the number of added partitions cannot exceed the maximum number of partitions allowed in the box.

        The sealing ring refers to the joint part of the drying box door and the box body. Generally, the current drying box uses silica gel as the sealing ring, and the old 101 and 202 series (non-type II) are used. Asbestos is used as a sealing ring. The pharmaceutical industry is prohibited from using asbestos as a material, so try not to recommend it.