The intelligent constant temperature and humidity test chamber is a test box that combines high temperature, low temperature and damp heat. It is also called high and low temperature wet heat alternating test box. Its repair difficulty is larger than other environmental test equipment and representative. Let's take the constant temperature and humidity test chamber as an example. Let's talk about the structure of the intelligent constant temperature and humidity test chamber and some common faults and troubleshooting methods. How to properly maintain and maintain the intelligent intelligent constant temperature and humidity test chamber? First, the construction of intelligent constant temperature and humidity test chamber The intelligent constant temperature and humidity test chamber is composed of a box body, a wind circulation system, a refrigeration system, a heating system and a humidity control system. The air circulation system generally adopts a structure that can adjust the direction of air supply; the humidification system adopts two types of boiler humidification and surface evaporation; the cooling and dehumidification system adopts an air conditioning working condition refrigeration structure; the heating system adopts electric heating fin heating and electric furnace direct heating. Structure; temperature and humidity test method adopts dry and wet ball test method, and also uses humidity sensor direct measurement method; control and display operation interface adopts temperature and humidity separation independent and temperature and humidity combination controller. Second, some common faults and troubleshooting methods of intelligent constant temperature and humidity test chamber When the equipment suddenly fails during the test operation, the corresponding fault display prompt appears on the control meter and there is an audible alarm prompt. The operator can quickly check which type of fault belongs to the fault diagnosis chapter in the operation of the equipment, and then ask the professional to quickly eliminate the fault to ensure the normal operation of the test. Other environmental testing equipment will have other phenomena in use, and it will be specific phenomena, specific analysis and elimination. If the low temperature does not reach the test index, then you must observe the temperature change, the temperature drop is very slow, or the temperature has a tendency to rise after the temperature reaches a certain value. The former should check whether the studio will be used before the low temperature test. Drying, keeping the studio dry, then putting the test sample into the working room and then testing it. If the test sample in the working room is placed too much, the wind in the working room cannot be fully circulated. After eliminating the above reasons, it is necessary to consider Whether it is a fault in the refrigeration system, the rotor pump should be inspected by the professional of the manufacturer. The latter phenomenon is caused by the poor use of the equipment. The ambient temperature at which the equipment is placed and the location where it is placed (the distance between the back of the cabinet and the wall) must meet the requirements (as specified in the operating instructions for the equipment). In the high temperature test, if the temperature change does not reach the test temperature value, the electrical system can be inspected and the faults can be eliminated one by one. If the temperature rises very slowly, it is necessary to check the air circulation system to see if the regulating baffle of the wind cycle is normal. On the contrary, check whether the motor of the wind cycle is running normally. If the temperature is too high, you need to set the PID setting parameters. If the temperature rises directly and the temperature is over-protected, then the controller fails and the control instrument must be replaced. In the damp heat test, the actual humidity will reach 100% or the actual humidity will be very different from the target humidity. The value is much lower. The former phenomenon may be caused by the drying of the gauze on the wet bulb sensor. Then check the wet bulb sensor. Whether there is water shortage in the water tank, the water level in the water tank is automatically controlled by a water level controller, check whether the water supply system of the water level controller is normal, and whether the water level controller works normally. Another possibility is that the wet ball gauze will be hardened due to the long use time or the purity of the water supply, so that the gauze can not absorb moisture and be dry. The above phenomenon can be eliminated by replacing or cleaning the gauze. The latter phenomenon is mainly because the humidification system does not work. Check the water supply system of the humidification system, whether there is a certain amount of water in the water supply system, whether the water level control of the humidification boiler water level is normal, and whether the water level in the humidification boiler is normal. If everything above is normal, then check the electrical control system, which should be repaired by professional maintenance personnel. The imported constant temperature and humidity test machine should also be regularly maintained, the condenser of the refrigeration system should be cleaned regularly, the moving parts should be lubricated according to the instructions, the electrical control system should be regularly maintained and checked, etc. These tasks are indispensable. Intelligent constant temperature and humidity test box warranty notes: 1. The user purchases the “Ai Siwei†brand series products, which is free of charge during the year from the date of purchase. The time is subject to the seller's stamp date. After the following year, the maintenance fee will be charged according to the company's regulations. 2. During the warranty period, the product is responsible for the failure caused by the quality of the product. However, the department is responsible for the repair, but the product is not responsible for the damage caused by the appearance of the product and the abnormal use, and can be repaired and charged accordingly. 3, the user must follow the instructions to operate correctly, due to improper use of the user or to disassemble or replace any part of the machine, the user is responsible for all the costs (including parts, maintenance, outbound fares, Meal and labor costs). 4. Please save this card properly. The warranty certificate and warranty card must be presented during the warranty. If there is any alteration, damage, no seller's signature, etc., it will be considered invalid and no free warranty service will be provided. 5, the whole machine warranty for one year, except for wearing parts (dry and wet ball gauze), dry and wet ball yarn if the test is too ordinary, with two or three months temperature is not allowed or can not continue, need to be replaced at this time. Lip Scrub,Natural Lip Scrub,Lip Sugar Scrub,Lip Scrub Exfoliator Guangzhou Shiruoni Cosmetics Co., Ltd. , https://www.shiruoni.com