Overview
HZAOC GDJW-100E 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. Temperature range is -70~ 150 ℃, studio volume is 100L, using upper air supply and lower air return mode to ensure Temperature uniformity.
Features
1. The box adopts the overall structure, the inner side is 1.0mm SUS304B stainless steel plate, the outer side is 1.0mm Cold rolled steel plate sprayed, and the thermal insulation material is ultra-fine Glass thermal insulation cotton.
2. The door sealing is made of double-decked silicone rubber sealing material, and the observation window is a multi-layer conductive film tempered hollow Glass with built-in heating wire anti-frost and lighting.
3. The heating device adopts porcelain frame nickel-chromium wire electric heating device, which has small thermal inertia and long life, and the control is stable and reliable.
4. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, using R404A environmentally friendly refrigerant.
5. Control system adopts High Accuracy Digital Temperature Controller, equipped with multiple Safety protection measures including phase loss protection and over temperature protection.
Principle
The test Chamber achieves temperature control through the heating system and the refrigeration system. The heating device is controlled by the controlled pulse duty cycle PID signal output by the meter and controlled by the solid state relay. The refrigeration system uses a fully enclosed Compressor unit to circulate the refrigerant. The temperature sensor is placed in a trend to monitor the temperature, and the Control system automatically adjusts the heating and cooling output according to the set parameters to ensure accurate and stable temperature.
Applications
Electrical, electronic products, components, parts and materials of high and low temperature environmental 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
Connect the power supply (AC380V +/- 10%/50HZ three-phase five-wire system) and ensure that the working Ambient Temperature is 5~ 28 ° C and Humidity ≤ 85% R.H.
2. Add deionized water or purified water as a source of water as needed.
3. Temperature range, heating/cooling rate and timing parameters (0~ 999h) are set through the operation panel.
4. Start the equipment, and the refrigeration unit and heating system start to work after the circulating fan runs.
5. Monitor the test process through the observation window, and use test holes for external connections if necessary.
6. After the test is completed, turn off the equipment and disconnect the power supply in sequence.
Notice
Equipment must be used under the specified Ambient Temperature (5~ 28 ℃) and Humidity (≤ 85% R. H).
• Must use deionized water or purified water as a source of water.
• Make sure the circulating fan is running normally before starting, otherwise the refrigeration and heating system will not start.
• Pay attention to the status indication of high voltage control, overvoltage, overload and other protection systems.
• The independent over-temperature protector will automatically disconnect the heating power when the main controller fails.
• Regularly check the status of sealing materials and insulation layers.
