Environmental Chamber Manufacturer

With the development of people in the fields of military, aerospace and navigation, many equipment will work in high temperature, temperature and humidity test chamber. In this environment, equipment will face greater challenges. The stability of the equipment has an important influence on the operation of the equipment. The high and low temperature humidity test chamber (hereinafter referred to as the high and low temperature humidity test chamber) is used to test the performance of materials in aerospace and marine products under high temperature, damp heat and other environments. Its structure and working principle have certain particularities. 1. Use a high and low temperature test chamber Before conducting environmental experiments, it is necessary to master the properties, experimental procedures, experimental conditions and experimental techniques of the tested samples. At the same time, it is necessary to master the use technology of the equipment, clearly understand the structure of the equipment, especially the performance and operation of the controller. At the same time, the staff must read the operation manual in detail many times to avoid operation errors, which will cause the equipment to fail to operate normally, cause errors in the test data, and damage the samples during the test. In order to ensure the accuracy of the experimental data in the experiment, it is necessary to select reasonable equipment for the experiment. The selection of high and low temperature humidity chambers should be determined according to the actual conditions of the experimental samples. The volume between the laboratory and the test subject should always be in a reasonable ratio. When conducting experiments on the heated sample, its volume should be less than 10% of the effective volume of the experimental calibration. The proportion of the unheated test sample to the effective volume of the laboratory should be 20%. The location of the sample should not cause the air outlet and air outlet to be blocked, and at the same time, keep a certain distance from the humidity sensor to ensure that the temperature is normal during the experiment. The following points should be paid attention to in the use of high and low temperature humid chambers: (1) During use, ensure that the high and low humidity heating box is safely grounded to avoid casualties caused by electrostatic induction. (2) Do not touch the box with your hands during operation. (3) Unless the chamber door cannot be opened due to special reasons during the operation of the equipment, the following adverse consequences may occur: 1) The temperature inside the door is still very high 2) High temperature and high humidity will flush out of the chamber. 3) High temperature may cause fire alarm. 4) Lighting should be turned off unless necessary. 5) Try to avoid repeated opening within 15 minutes during use. 6) When the high and low temperature humidity box is running at low temperature, it is best to dry the equipment at 60°C for 30 minutes, and then open the door to prevent the evaporator from freezing or affecting the measurement time of subsequent experiments. 7) During operation, in order to ensure the safety of equipment and operators, over-temperature protectors and circuit breakers should be checked regularly. 8) In addition to full-time personnel, professional electricians are also required to participate in the maintenance and inspection of the equipment. 2. Repair and maintenance of common problems Frequently asked questions about maintenance of high and low temperature and humidity chambers During the high temperature test, if the test temperature does not reach the temperature value required by the test, the electrical system should be checked and the cause of the failure should be eliminated one by one. If the temperature rises slowly, check the air circulation system and observe the opening status of the adjustment plate in the air circulation system. If the temperature rises too fast, the rotation of the air circulation channel needs to be detected. If the temperature rises too fast, the PID tuning parameters need to be adjusted. If the temperature rises directly to the over-temperature protection, it can be concluded that the controller is faulty, and the control instrument should be replaced in time. When the low temperature does not meet the experimental requirements, it is necessary to observe the temperature change. Whether the temperature rises after falling to a certain value or whether the temperature drops slowly. The former is generally caused by the harsh environment of the drying equipment. The location and ambient temperature of the equipment should be observed. If it cannot meet the working requirements of the equipment, it should be adjusted in time. If the latter, the equipment should be checked to see if the laboratory is dry before low temperature testing. If the workshop is dry, put the test samples into the laboratory, and check whether there are too many samples stacked in the laboratory, which causes the laboratory ventilation cycle to fail to meet the requirements. 2.2 Equipment maintenance content The main contents of equipment maintenance include preventive maintenance and predictive maintenance. Of the two types of preventive maintenance, the maintenance that needs to be done once a week includes cleaning the drip tray and the laboratory body for condensed water. Maintenance required by customers in special areas includes: cleaning humidification water pipes, flushing systems or medium cooling water pipes. Maintenance that needs to be done every six months includes cleaning the air cooling equipment (condenser), maintenance that needs to be done every year, cleaning the scale inside the humidifier, cleaning the AC (high current) contactor for maintenance of the electrical control cabinet. At the same time, the lubricating oil used by the compressor should be replaced every 2-3 years. Predictive maintenance mainly includes weekly maintenance, monthly maintenance and quarterly maintenance. Weekly maintenance includes: checking the balance pressure and suction and discharge pressure of the compressor, checking the color of the oil in the compressor, and checking the oil body. Monthly maintenance included. Check the compressor discharge and suction temperatures, the liquid mirror and discharge temperatures in the condenser, and the temperature difference between the incoming and outgoing water in the cold water pipe. Check the heating rate and cooling rate of the device. Check the operating current of the compressor motor quarterly. Regular maintenance of the equipment can not only improve the stability of the equipment during operation and the accuracy of the experiment, but also prolong the service life of the equipment to a certain extent. Therefore, attention should be paid to the maintenance of high and low temperature humidity chambers in the future. 3. Conclusion Environmental Chamber Manufacturer is a special refrigeration equipment, its use, maintenance and repair should start from refrigeration, electrical control, thermal engineering and so on. In the process of use, attention should be paid to the usage specifications. When repairing, the faults that may be caused by the operation should be eliminated first, and then the faults existing in the equipment itself should be repaired. After the equipment fails, it should be repaired on the basis of mastering the structure and working principle of the equipment. In addition, the maintenance of the equipment must be carried out on time, and the maintenance of the equipment cannot be ignored because the equipment has not failed for a period of time.

The operation of a stability chamber is based on the basic idea that by maintaining a constant temperature and humidity chamber, a constant relative humidity value will be maintained as well. The ratio of how much water is in the air to how much it might theoretically store is known as relative humidity. With a rise in current temperature, the amount of water that air can contain increases, resulting in a drop in relative humidity. This is how both settings are automatically modified at the same time. The temperature in the stability chamber should not vary more than two to three degrees, and the humidity should not fluctuate more than 5%. The chamber’s outer and inner bodies are comprised of corrosion-resistant stainless steel, with the inner body insulated properly. Inside the chamber, there are several shelves for storing products that may be readily removed. Sensors are also fitted to the chamber to detect temperature and humidity levels. The controlled airflow inside the chamber ensures that temperature and humidity remain consistent. For improved uniformity of essential conditions, horizontal laminar airflow is suggested. Even when the shelves are fully loaded with samples, they will receive a continuous flow of air using this system. The linked blowers ensure that the sir is circulated properly. Receiving and transferring data is done with data loggers. Stability chambers have a wide range of applications. They play a vital role in the final stages of product production. It is also used in the automotive industry, cosmetics industry, packaging, biological or microbiological testing, research and various other fields. The Pharmaceuticals segment is responsible for creating, researching and marketing medicines that benefit medical science. Since these treatments will benefit large numbers of people in many parts of the world, proper drug production becomes a top priority. When individuals manufacture and ingest defective medicines, side effects and dangerous symptoms can occur. Therefore, it is necessary to conduct drug stability testing in various environments. In the pharmaceutical industry, the stability chamber is used for this purpose only. They assist in drug testing under various variables such as temperature, humidity, pH, radiation, etc. They are also used to see how long a product will last before needing to be replaced. Stability chamber testing also reveals information about the integrity of product packaging. This test can save you a lot of time and money by alerting you to errors in your medicine that could make it harmful in a particular setting. This test can also be used to determine the expiration date of a drug. The shelf life of a drug is the amount of time a drug remains effective from the date of manufacture when stored under specific conditions. This value must be determined using a stability test chamber and displayed on the packaging for consumer awareness. These chambers are also used to store pharmaceutical samples that require stable conditions that cannot be obtained through natural sources, as they maintain the required stable and uniform temperature. Proper maintenance and inspection of chambers should be a priority in the pharmaceutical sector to ensure correct drug testing. At last, Who provides the best stability chamber solution? Environmental Chamber Manufacturer Thchamber stability chambers have been carefully constructed and developed to meet the stringent requirements of climate testing and stability investigations. The chamber features FDA/ICH stability standards to provide out-of-the-box control and consistent temperature and humidity. Thchamber stability chamber has specific guidelines, structural integrity and measurement equipment that allow accurate recording of test data to keep the chamber running smoothly through rigorous testing cycles over many years.