Overview
HZAOC GDW-800D 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. The equipment can also perform stress screening test 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 layer is made of ultra-fine Glass thermal insulation cotton.
2. The door is made of double-decked silicone rubber sealing material to ensure sealing.
3. The observation window is a multi-layer conductive film tempered hollow Glass, with built-in special heating wire anti-frost and lighting.
4. The side of the box is equipped with a 50mm test hole with a silicone rubber plug, providing 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 uses R404A refrigerant. Miscellaneous key refrigeration components are internationally renowned brands.
7. Control system adopts High Accuracy Digital Temperature Controller, accurate and stable control, long-term operation does not drift.
8. Safety protection system, including multiple electrical protection and independent over-temperature protector.
9. The air supply method is the upper air supply and the lower air return, and the temperature sensor is placed in a trend.
Principle
The equipment heats or cools the air in the working room through components such as evaporator, electric heater and fan in the air conditioning cabinet to realize temperature control. The heating system is controlled by the temperature controller Output signal, and the electric heater is controlled by the solid state relay; the refrigeration system is cooled by the Compressor unit and the refrigeration circuit. The Control system uses the PID algorithm to adjust the heating and cooling output according to the temperature signal fed back by the PT100 Sensor, and unifies the temperature in the box by the way of upper supply air and lower return air to achieve the set high and low temperature test conditions.
Applications
Electrical and electronic products, components, parts and materials adaptability 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. Place the equipment in an environment that meets the requirements (room temperature below 28 ° C, well ventilated, and 80cm space is reserved around).
2. Connect the AC380V +/- 10%/50Hz three-phase four-wire power supply.
3. Start the device through the function button on the operation panel, and start the circulating fan first.
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. The equipment starts to run, and the heating, cooling or temperature gradual change test is carried out.
7. After the test is completed, the equipment stops running according to the setting and the sample is taken out.
Notice
• Equipment Operating Environment Temperature should be within the range of 5 ° C to + 28 ° C, with an average temperature of ≤ 28 ° C within 24 hours.
• Environmental humidity should be ≤ 85%.
• Must ensure that the power supply is AC380V +/- 10%/50Hz three-phase four-wire.
• 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 placement position.
• When starting, ensure that the circulating fan starts normally, and the cooling and heating systems can work.
• Pay attention to the fault indicator lights on the Control system, and any abnormalities should be dealt with in time.
• When using the test hole, pay attention to the sealing and insulation of the stopper.
Safety protection devices are checked regularly.
