Overview
HZAOC GDW-500D low/high temperature test chamber is suitable for adaptability test of electrical, electronic products, components, parts and their materials when stored, transported and used in high and low temperature environment, 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, which has good sealing performance.
3. The observation window is a multi-layer conductive film tempered hollow Glass, with a built-in special heating wire to prevent frosting and lighting.
4. The side of the box is equipped with a test hole with a silicone rubber stopper, which has both thermal insulation efficiency.
5. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia, long service life, and stable and reliable control.
6. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, and Miscellaneous refrigeration parts use imported brand products from many countries.
7. Control system adopts High Accuracy Digital Temperature Controller, accurate and stable control, long-term operation does not drift.
8. Control system has perfect Safety protection measures, including phase loss, overtemperature, overload, leakage and other protection, and has an independent overtemperature protector.
9. The air supply method is the upper air supply and the lower air return method, and the temperature sensor is placed in a trend.
Principle
The equipment heats or cools the air in the working room through the evaporator, electric heater, fan and other components in the air conditioning cabinet to realize the control of the temperature in the box. The heating is realized by the solid state relay controlling the porcelain frame nickel-chrome wire electric heater; the cooling is realized by the system composed of the French "Taikang" fully enclosed Compressor unit and imported refrigeration components, and the refrigeration capacity is adjusted by R404A refrigerant and shunt method. The control system collects temperature signals through the PT100 temperature sensor, and the High Accuracy digital temperature controller performs PID calculation to control the heating and cooling system to work, so that the temperature in the box reaches and stabilizes at the set value.
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 degrees, well ventilated, and no matter within 80 cm around the machine).
2. Connect the power supply that meets the requirements (AC380V +/- 10%/50HZ three-phase four-wire system).
3. Set the required temperature program, time and other parameters through the function buttons on the operation panel.
4. Place the test sample in the studio.
5. Start the equipment, and after the circulating fan is started, the refrigeration unit and heating system can work.
6. The equipment starts running and performs high and low temperature tests.
7. After the test is completed, the equipment stops running and the sample is taken out.
Notice
* Equipment Operating Environment Temperature should be in the range of 5 ℃~ + 28 ℃ (24 hours average temperature ≤ 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.
* Equipment with a variety of Safety protection, failure please check according to the indicator light, non-professionals do not repair themselves.
Pay attention to whether the anti-frost function of the observation window is normal to ensure that the situation in the box can be clearly observed.
* When using the test hole, pay attention to the sealing and insulation of the stopper.
Regularly check the operation of the system and pay attention to the high and low pressure gauge instructions.
