Overview
HZAOC GDJW-100C low/high temperature test Chamber is suitable for 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 of electronic components. The box adopts an 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.
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.
3. The observation window is a multi-layer conductive film tempered hollow Glass, the size is 200 × 300mm, and the built-in special heating wire prevents frost and is equipped with a lighting lamp.
4. The side of the box is equipped with φ 50mm test holes, and the stopper material is silicone rubber with low foaming, high and low temperature resistance and thermal insulation.
5. The heating device adopts porcelain frame nickel-chromium wire electric heating device, which has small thermal inertia, long life and stable and reliable control.
6. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, using R404A environmentally friendly refrigerant.
7. The temperature controller adopts High Accuracy Digital Temperature Controller, which controls accurately and smoothly, and does not drift for a long time.
8. Control system with Safety protection measures, including phase loss protection, over-temperature protection, leakage and so on.
Principle
The test Chamber achieves temperature control through heating and refrigeration systems. The heating system adopts a porcelain frame nickel-chrome wire electric heating device, which is controlled by a solid-state relay by outputting a controllable pulse duty cycle PID signal from the meter; the refrigeration system adopts a French "Taikang" fully enclosed Compressor unit, using R404A environmentally friendly refrigerant. The temperature sensor is placed in a trend, and the Control system monitors the temperature through the PT100 temperature sensor, and circulates the air under the upper supply air to ensure Temperature uniformity and Stability.
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
1. Power supply voltage AC380 (+/- 10%) V/50HZ three-phase five-wire system.
2. Provide deionized water or purified water as a source of water.
3. Temperature range, heating rate, cooling rate and timing time are set through the operation panel.
4. Start the circulating fan to ensure that the refrigeration unit and heating system start normally.
5. Monitor the operating status of the temperature controller and over-temperature protector.
6. Power off the equipment after the test is completed.
Notice
• Ambient Temperature should be maintained at 5~ 28 ℃.
• Environmental humidity should be ≤ 85% R.H.
• Power supply voltage must be AC380 (+/- 10%) V/50HZ three-phase five-wire system.
• Must use deionized water or purified water as a source of water.
• When the circulating fan is not started or overloaded, the refrigeration unit and heating system cannot be started.
Safety protection devices, such as over-temperature protectors, high voltage control, etc.
• Avoid frequent switching when the equipment is running to prolong its service life.
