Talk about high and low temperature test chamber control system
The control system of the high and low temperature test chamber is also called the temperature control system. It is the brain of a device. The command center of any action, once the brain is paralyzed, the whole device will not operate normally, directly affecting the test process and results. By understanding the control system of the high and low temperature test chamber, it is convenient to select the product and choose the appropriate operation mode; secondly, it is convenient for later use and maintenance, and fully displays the functions of the equipment.
Whether it is high and low temperature test chambers, constant temperature and humidity test chambers, ozone aging test chambers and other equipment, their control systems are generally divided into two categories: single point and programmable.
The single-point control system of the high and low temperature test chamber is commonly used in the push-button control instrument. It is to complete a command by setting a command, and only one command can be set at a time. For example, we set the test conditions of the high and low temperature test chamber to -40 ° C for 2 hours, then start to cool down from room temperature until -40 ° C, and maintain the low temperature for 2 hours, the meter starts to alarm and the test is completed. If we want to set the test conditions to -40 ° C for 2 hours and then rise to 80 ° C for two hours, then this is the two commands, you have to wait until the * process is completed before you can manually reset the second Commands to complete the test. If we want the device to automatically complete the above two actions, we call it programmable control.
The programmable control system of the high and low temperature test chamber mostly adopts the touch screen controller. Commonly, there are Japan OYO, Korea Sanyuan TEMI series, Delta's PLC, among which South Korea's TEMI88O control instrument has superior applicability, making it high and low temperature test. The use of zui in the box is frequent. Programmable controller for the performance of alternating test, with 120 sets of program 1000 segment 999 cycle steps capacity, each time set zui large value of 99 hours and 59 minutes, and the controller interface is available in Chinese and English, real-time The running curve can be displayed on the screen. The test box also has an RS-232 or RS-485 communication interface, which can be programmed on the computer to monitor the test process and perform functions such as automatic power on/off.
Nowadays, with the improvement of test requirements, the test operation is more user-friendly, and the programmable control system is widely used in the field of environmental test equipment.
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