High and low temperature test chamber and high and low temperature impact test box with high and low temperature series, there are some similarities between the two: the same temperature and size. But the two are more of some differences, high and low temperature test chamber PK high and low temperature impact test box who is better.
High and low temperature impact test box in the test, the sample on the sample area, the test box is divided into two boxes (high temperature zone, low temperature area) or the upper and lower three boxes (high temperature zone, sample area, low temperature area). High and low temperature impact test chamber is generally applicable to a very destructive test, the test process instantaneous conversion. Such as low temperature zone -60 ℃, high temperature 150 ℃, the sample suddenly changed from high temperature to low temperature, conversion time is less than or equal to 15s, temperature recovery time is less than or equal to 5min, the product of great testimony.
High and low temperature impact chamber characteristics:
1, product appearance beautiful, reasonable structure, advanced technology, selection of sophisticated, with a simple and convenient operating performance and reliable equipment performance. The equipment is divided into three parts: high-temperature box, low-temperature box and test box. It adopts the unique heat-sealing structure and heat storage and storage effect. When the test is completely static, the cold and hot temperature is introduced into the test area by hot and cold air way switching Hot and cold impact test purposes.
2, the use of the most advanced measurement device, the controller uses a large color LCD man-machine touch dialogue LCD human interface controller, simple operation, easy learning, stable and reliable, in English and English display a complete system operating conditions, And set the program curve. With 96 test specifications set independently, the impact time of 999 hours 59 minutes, the cycle of 1 to 999 times can be set to achieve automatic operation of the refrigerator, the maximum degree of automation to reduce the workload of the operator can be automatically at any time Start, stop working;
3, the left side of the box with a diameter of 50mm of the test hole for external power supply wiring test components. Can be set independently of high temperature, low temperature and hot and cold impact of three different conditions of the function, and the implementation of hot and cold impact conditions, the choice of two-slot or three-slot and cold, hot impulse to impact the function, with high and low temperature The function of the chamber.
4, with automatic, high-precision system circuit, any mechanical action, completely PLC lock processing, all using PID automatic calculation control, high temperature control accuracy. Advanced scientific air circulation cycle design, so that the indoor temperature uniform, to avoid any Deadline; complete safety protection device, to avoid any possible security risks, to ensure the long-term reliability of equipment
5, can set the number of cycles and defrost the number of automatic (manual) defrost. Outlet in the air outlet sensor detection control, throttle mechanism switching time is completed within 10 seconds, Bell brand hot and cold shock temperature recovery time of 5 minutes carry out. During operation, the status display and curve display are displayed. When an abnormal condition occurs, the fault point and cause are automatically displayed on the screen and the troubleshooting method is provided. When the input power is unstable, the emergency stop device is provided.
6, the refrigeration system using complex high-efficiency low-temperature circuit system design, refrigeration units imported from Europe and the United States imported compressor, and the ozone coefficient of zero green environmental protection (HFC) refrigerant R507, R23. Super security protection: power overload protection , Leakage protection, control loop overload, short circuit protection, compressor protection, grounding protection, over-temperature protection, alarm voice prompts.
Most of the high and low temperature chamber for civilian products, the test process is gradual. There is only one test space in the test chamber. The test piece is placed in the normal temperature zone directly. According to the requirements of the instrument setting, the temperature is increased step by step (heating rate: 1.0 ~ 3.0 ℃ / min, the cooling rate is 0.7 ~ 1.0 ℃ / min ) The temperature of the progress of relatively gentle. This is the main difference between the two experimental methods.
In addition, the high and low temperature test chamber and the high and low temperature impact test chamber used in the refrigeration system, control system, design principles, box structure are very different, so users must clearly refer to the standard, test methods and test required to achieve the test conditions To select the test box to meet the requirements.
