Overview
HZAOC GDW-800E low/high temperature test chamber is suitable for the adaptability test of electrical and electronic products, components, parts and materials in high and low temperature environment storage, transportation and use, as well as temperature gradual change test. Stress screening test can also be carried out on electronic components.
Features
1. The box adopts the overall structure, the inner side is imported SUS304B stainless steel plate, the outer side is Cold rolled steel plate sprayed, and the thermal insulation material is ultra-fine Glass thermal insulation cotton.
2. The door is made of double-decked silicone rubber sealing material, and the observation window is made of multi-layer conductive film tempered hollow Glass and has a built-in special heating wire surround and lighting lamp.
3. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia, long service life, and stable and reliable control.
4. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, and uses R404A refrigerant, Miscellaneous key refrigeration components use imported brand products from many countries.
5. Control system with High Accuracy Digital Temperature Controller and PT100 Temperature Sensor, accurate and stable control, long-term operation without drift.
6. Safety protection system, including independent over-temperature protector, phase loss protection, phase sequence error protection, overvoltage, overload, leakage and other multiple protection.
7. The air supply method is the upper air supply and the lower air return, and the temperature sensor is placed in a trend to ensure Temperature uniformity.
Principle
The test chamber heats or cools the air in the working room through the evaporator, electric heater, fan and other equipment in the air conditioning cabinet. The Control system adjusts the output power of the solid-state relay to control the heater through the PID algorithm according to the trend temperature detected by the PT100 Sensor, or adjusts the cooling capacity of the refrigeration unit through the shunt method, so as to achieve accurate temperature control. The air in the box is circulated by the upper supply air and the lower return air to achieve the set temperature environment.
Applications
Electrical, electronic products, components, parts and materials high and low temperature adaptability test, temperature gradual change test, stress screening test
Standards
GB/T2423.1-2001、GB/T2423.2-2001、GB/T10592-2008、GB/T10589-1989、GB/T11158-1989、IEC68-2-1、IEC68-2-2
Steps
1. Ensure that the equipment is placed in an environment that meets the requirements (room temperature below 28 ° C, well ventilated, and no items within 80 cm around the machine).
2. Connect the power supply that meets the requirements (AC380V +/- 10%/50HZ three-phase four-wire system).
3. Start the device through the function button on the operation panel and check whether the status of each indicator light is normal.
4. Set the required test temperature, time, and other parameters on the temperature controller.
5. Place the sample in the studio and close the box door.
6. Start the test program and the equipment starts running.
7. During the test, the sample status can be observed through the observation window.
8. After the test, the equipment stops running according to the program and the sample is taken out.
Notice
* Equipment Operating Environment Temperature should be between 5 ℃~ + 28 ℃, and the average temperature within 24 hours should be less than or equal to 28 ℃.
* Environmental humidity should be ≤ 85%.
* Must use AC380V +/- 10%/50HZ three-phase four-wire power supply.
* The operating environment should be below 28 degrees and well ventilated.
* No items can be placed within 80 cm of the front, rear, left and right of the machine.
Before starting the equipment, ensure that the circulating fan starts normally, otherwise the refrigeration and heating system will not work.
Regularly check the effectiveness of system protection devices (e.g. high and low voltage control, over-temperature protection, etc.).
The equipment is equipped with an independent over-temperature protector, but it is still necessary to pay attention to the operating status of the main controller.
* When using the test hole, pay attention to the sealing and insulation efficiency of the stopper.
