How should the daily operation of the constant temperature and humidity test chamber be used?
The constant temperature and humidity test chamber is one of the broad environmental test equipment families. Among them, according to the frequency of use, high and low temperature test chambers, damp heat test chambers, etc. are the most common in production and life, and are also indispensable. The constant temperature and humidity test chamber basically has the above functions, so the application is very wide and complicated. Therefore, the difficulty of repair and maintenance is also relatively large, and its principle is similar to other test chamber equipment on the market.
The operator of the test chamber should perform it in accordance with the standards of the instruction manual, and must have a better understanding of the structure and principles of the test chamber equipment. The equipment of the thermal shock test chamber is composed of the casing of the box, the air circulation system, the refrigeration system, the heating system and the control system. The air circulation system generally adopts a system that can adjust the air supply direction, the humidification system adopts the method of boiler humidification and surface evaporation, and the cooling and dehumidification system uses the air conditioning working condition refrigeration system. The heating adopts electric sheet heating and electric furnace wire heating system. The test method of humidity and temperature is a wet-bulb test, and some test methods are humidity sensors. The control and display systems use temperature and humidity independently or combined temperature and humidity control systems.
So many complicated mechanical parts are combined together. Therefore, once a fault occurs, it is more troublesome to repair. Common faults can be checked in a general way.
In the high temperature test, if the temperature change does not meet the standard, first check the electrical system, one by one. Once the temperature rises slowly, you can take a look at the air circulation system to see if the temperature adjustment baffle of the air circulation is normally open. If not, you can check whether the motor of the wind cycle is turned on and whether it can run normally. Once the temperature shock is too strong, specify the PID setting parameters. If the temperature rises directly to the temperature protection, there may be a problem with the temperature controller, and timely replacement can solve such problems.
The constant temperature and humidity test chamber does not run suddenly during the test procedure. You can check whether there is an alarm on the control dashboard. If there is an alarm prompt, you can follow the alarm prompt and proceed to the next step. If there is no relevant prompt, Then first check whether there is a problem with the alarm device. If it can't be detected again, you need to immediately ask professional maintenance personnel to carry out on-site maintenance treatment to ensure that the test can be carried out normally. If this problem occurs in other test chambers, it needs to be analyzed according to the situation.
Once the fault occurs, it will affect the normal operation of the test, and the date of delivery will be affected. Therefore, it is very important to choose a constant temperature and humidity test chamber of good quality and not prone to failure. Therefore, in order to prevent the occurrence of failures, it is necessary to work hard before buying. It is the most important to choose the test box equipment of a regular manufacturer. Many companies use the "Linpin" brand test box, the failure rate is almost 0, so when buying a constant temperature and humidity test box, you must be sure to "Linpin" brand.
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