Overview
HZAOC GDW-100A low/high temperature test chamber is suitable for the adaptability test of electrical, electronic products, components, parts and materials in high and low temperature environment storage, transportation and use, as well as temperature gradual change test, and stress screening test for 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, the observation window is made of multi-layer conductive film tempered hollow Glass, and has built-in heating wire anti-frost and lighting.
3. The side of the box is equipped with a test hole with a silicone rubber plug, which has both thermal insulation efficiency.
4. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia, long service life, and stable and reliable control.
5. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, and uses R404A refrigerant, Miscellaneous key refrigeration components are imported brands.
6. Control system adopts High Accuracy Digital Temperature Controller and PT100 Temperature Sensor for accurate and stable control.
7. Safety protection system with perfect, including phase loss, overtemperature, overload, leakage and other multiple protection, and with independent over-temperature protector.
8. Control system is equipped with interlocking devices to ensure the safe operation of equipment.
Principle
The test chamber realizes the temperature adjustment in the working room through the evaporator, electric heater, fan and other equipment in the air conditioning cabinet. The heating system is controlled by the solid-state relay of the temperature controller Output signal to drive the electric heater to work; the refrigeration system is operated by the Compressor unit and supporting parts, and the cooling capacity is adjusted by the shunt method. The temperature sensor is placed in a trend, monitors the temperature and feeds back to the Control system, and realizes precise control of the temperature through PID adjustment. The studio adopts the upper air supply and lower air return mode to ensure uniform temperature.
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 80cm space is reserved around).
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 start the circulating fan first.
4. According to the test requirements, set the target temperature, time, and other parameters on the temperature controller.
5. The equipment will operate automatically, adjusting the studio temperature to the set value through a heating or cooling system.
6. During the test, the sample can be viewed through the observation window, and test holes can be used if necessary.
7. After the test reaches the set time, the equipment can be automatically stopped or manually stopped as required.
8. After the test, turn off the power of the device.
Notice
• Equipment Operating Environment Temperature should be between 5 ℃ and 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.
• Items cannot be placed within 80 cm of the front, rear, left and right of the equipment placement.
When starting, ensure that the circulating fan starts normally, otherwise the refrigeration and heating system will not work.
• Pay attention to the status of various protection indicators when the equipment is running, and deal with any faults in time.
• After using the test hole, make sure the stopper is tightly plugged to maintain the thermal insulation performance.
