Eight points for attention of the hottest GDW high

Eight points for attention of GDW high and low temperature test chamber

gdw high and low temperature test chamber is mainly used for the constant temperature and humidity test of the product to be tested. Although the operation and use are very simple, once the operation is wrong, it will easily cause accidents, and shorten the service life of the device, thereby reducing the service performance of the test chamber. It is basically composed of electrical, refrigeration and mechanical systems. Therefore, once the equipment has problems, the whole equipment system should be comprehensively inspected and comprehensively analyzed. Generally speaking, the process of analysis and judgment can be from the outside to the inside, that is, after the external factors are eliminated first, the equipment is systematically decomposed according to the fault phenomenon. After the comprehensive analysis and judgment of the system, or the backward method can be used to find the cause of the fault. First, find out whether there is a problem with the electrical system according to the electrical wiring diagram, and finally find out whether there is a problem with the refrigeration system. Do not disassemble or replace parts blindly until you know the cause of the fault, so as to avoid unnecessary trouble

gdw high and low temperature test chamber's eight points of attention are as follows:

1. The stacking amount of items tested in the high and low temperature test chamber cannot affect the circulation of the air volume of the test chamber, otherwise it may affect the performance of the machine

2. All lights should be turned off except that they must be turned on

3. When using high and low temperature test chamber for test, the door must be well managed and tightly closed to avoid temperature and humidity leakage and failure to reach the performance area

4. Before the low-temperature test, the working room should be wiped dry, and then the control should be set at 50 ℃ and run for no less than 30 minutes to prevent moisture in the working room, frost on the refrigeration evaporator and affect the refrigeration rate

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5. It is absolutely forbidden to heat or test explosive, flammable and highly corrosive substances in the high and low temperature test chamber to avoid unnecessary losses

6. After the first power on, if the power supply cannot be started and the alarm sounds, first check whether the three-phase voltage is powered on or change the phase sequence

7. If the high and low temperature test chamber operates below 0 ℃, the manufacturer suggests that it is best not to open the chamber door if there is no special need. Because when doing the low-temperature test, if you open the box door, it is easy to cause the phenomenon of ice sealing in the internal evaporator and other parts. If the temperature is lower, the phenomenon is more serious If it is required by the experiment that it must be opened, it is best to shorten the opening time as far as possible

8. Insist on setting the temperature near the ambient temperature after each test, cut off the power supply of GDW high and low temperature test chamber after working for about 30 minutes, and wipe the inner wall of the studio

the main equipment of Changzhou National Institute of experimental equipment includes: water bath constant temperature oscillator, SHZ-88 water bath constant temperature oscillator, SHZ-82 water bath constant temperature oscillator. The selection device from the experimental instruments and equipment developed by various existing scientific and technological plans (special projects, funds) or free funds, shz-b water bath constant temperature oscillator 5, sha-c water bath constant temperature oscillator, sha-b water bath constant temperature oscillator, shz-82a water bath constant temperature oscillator, thz-82a water bath constant temperature oscillator Sha-ba water bath constant temperature oscillator, sha-ca water bath constant temperature oscillator, digital display water bath constant temperature oscillator, digital display water bath oscillator, SHA-2 frozen water bath constant temperature oscillator, constant temperature water bath oscillator, dual function water bath constant temperature oscillator, cyclotron water bath constant temperature oscillator, cyclotron water bath constant temperature oscillator, reciprocating water bath constant temperature oscillator, thz-c constant temperature oscillator, small constant temperature and humidity box, air bath constant temperature oscillator Digital display gas bath constant temperature oscillator, horizontal constant temperature oscillator, dual function gas bath constant temperature oscillator, Jiangsu high and low temperature test chamber, alternating damp heat test chamber, small constant temperature and humidity chamber, high and low temperature alternating damp heat test chamber, rubber bearing aging test chamber, digital display water bath gyratory oscillator, high and low temperature test chamber with different pull of double tension test machine, constant temperature and humidity test chamber, programmable high and low temperature test chamber, low temperature test equipment High and low temperature constant damp heat test chamber, GDW high and low temperature test chamber, walk-in high and low temperature test chamber, large constant temperature oscillator, intelligent constant temperature oscillator, SPX biochemical incubator, 150A incubator, low temperature shaking table, etc