Improvement plan of programmable high and low temperature damp heat test chamber
In the new year, our company uses different types of product accessories according to the different temperature and humidity environment conditions in each province, which can extend the programmable high and low temperature and humidity test chamber, constant temperature and humidity test chamber and other equipment. Use in the environment.
Dongguan Aisi Li Test Equipment Co., Ltd. specializes in producing programmable high and low temperature and humidity test chambers, high and low temperature test chambers, heat and cold shock test boxes, walk-in constant temperature and humidity chambers, ultraviolet aging test boxes and other related test equipment, our company The professional technicians and superb Taiwanese technology have made our company reach its peak in the equipment field, and there are countless customers and friends.
The following are the adjustments made by our company to the refrigeration system and electronic control system of the programmable high and low temperature damp heat test box:
Programmable circuit control system of high and low temperature damp heat test chamber:
1. The temperature and humidity control instrument adopts the "Korea original TEMI850" large screen-LCD display-programmable microcomputer PID control SSR output operation. Full-port large LCD touch screen, simple screen operation and easy program editing.
2. Accuracy: 0.1 ℃ (display range)
3. Resolution: ± 0.1 ℃;
4. Temperature sensor: PT100 platinum resistance temperature measuring body;
5. Control mode: heat balance temperature and humidity control mode; all electrical appliances adopt (Schneider) series products
6. Temperature and humidity control adopts P.I.D + SSR system co-channel control
7. With automatic calculation function, the temperature change conditions can be corrected immediately, so that the temperature control is more accurate and stable
8. The controller operation interface is available in Chinese and English, and the real-time running curve can be displayed on the screen
9. The high and low temperature testing machine has 100 sets of programs, each group has 100 sections, and each section can be circulated with a capacity of 999 steps.
10. After the data and test conditions are input, the controller has a screen lock function to avoid stopping by human touch
11. With RS-232 or RS-485 remote communication interface, HD80 high and low temperature testing machine can design a program on the computer to monitor the testing process and perform functions such as automatic switching on and off
12. The controller has an automatic screen saver function for the screen, which can better protect the LCD screen in a long-term running state (to make its life longer)
13. The test box has an automatic defrosting device at the return air inlet (so that the water vapor generated during the test will not accumulate on the refrigeration evaporator
Programmable high and low temperature damp heat test box refrigeration system control
1. Compressor: Fully enclosed French Taikang 1.5HP × 2 × 1 group
2. Cooling method: cascade refrigeration
3. Condensation method: forced air cooling
4. Refrigerant: R404A, R23 (environmentally friendly)
5. The system pipelines are tested for ventilation and pressure 48H leak detection.
6. Heating and cooling systems are completely independent
7. Internal spiral refrigerant copper tube
8. Slope evaporator
9. Drying filter, refrigerant flow window, repair valve, oil separator, solenoid valve, and liquid storage cylinder are all imported original parts
10. Dehumidification system: Adopt dew point temperature laminar flow dehumidification method of evaporator coil
11. Start R404A and R23 when cooling down, and only start R404A when dehumidifying (energy saving and consumption reduction)
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