Overview
Programmable constant temperature and humidity testing machine NBC-408L-20 is a device used to test the performance of materials in various environments, mainly used to test the heat resistance, cold resistance, dry resistance and moisture resistance performance of various materials. The equipment is suitable for mass detection of electronics, electrical appliances, communications, instruments, vehicles, plastic products, metals, food, chemicals, building materials, aerospace and other products.
Features
1. The product has beautiful appearance, reasonable structure, precise process, simple and convenient operation, stable and reliable performance.
2. The controller adopts a large-scale color liquid crystal man-machine touch dialog LCD interface, supports Chinese and English display, and can realize remote control of RS232 computer interface.
3. The refrigeration circulation system adopts the original imported Japanese "Sanyo" brand fully enclosed Compressor, the components come from Japan, France, the United States, Italy and other origins, and the refrigerant is an environmentally friendly refrigerant in the United States.
4. Reserve a 50mm diameter test hole on the left side of the test chamber.
5. Equipped with fully automatic, high-precision system loop, using P.I.D automatic calculation control, High Accuracy and High Stability of Temperature in the whole area.
6. Specially designed air circulation circulation system and sensing system to ensure Temperature Uniformity and avoid dead ends.
7. Adopt enlarged observation window, 4 layers of tempered Glass, wide field of vision.
8. The instrument has a comprehensive protection system, including power overload protection, leakage protection, Compressor protection, etc., which automatically displays the fault point and stops.
Principle
The equilibrate Conditioning Control System (BTHC) is adopted, and the induction system transmits the actual data in the test chamber to the controller. The controller controls the SSR and multi-stage intelligent output, and the equilibrate temperature and humidity system outputs the power to ensure that the temperature and humidity in the test chamber are fully stable, and It has the function of energy saving, reducing the power of the instrument, and ensuring long-term accurate and stable operation.
Applications
Electronics, electrical appliances, communications, instrumentation, vehicles, plastic products, metals, food, chemicals, building materials, aerospace
Steps
1. Check whether the Power supply voltage meets the requirements of 380v/50HZ, and the allowable value of voltage change is +/- 10%.
2. Ensure that the environment temperature is 0~ 30 ℃, the performance guarantee environment is 5~ 25 ℃, and Miscellaneous items cannot be placed within 60CM.
3. Set the temperature and humidity parameters through the controller, Temperature range -20~ 150 ℃, humidity control range 20~ 98% R.H.
4. Start the equipment and observe whether the temperature and humidity fluctuations and uniformity meet the specifications.
5. Use the test hole for external connection testing.
6. Monitor the operating status of the equipment, automatically shut down if there is any abnormality, and display the point of failure.
Notice
• Power supply voltage and environmental conditions checked before use to ensure compliance.
• Miscellaneous items should not be placed within 60CM when the equipment is running.
• Pay attention to the temperature and humidity control range to avoid exceeding the specification parameters.
• Regularly check the water quality of the humidification system to filtrate and avoid blockage.
• Use the bottom casters when moving the device, pay attention to load bearing and shock absorption.
• When a failure occurs, the equipment will automatically shut down and display the cause, and deal with it in time.
