Product Usage:
The low temperature and low pressure test chamber mainly provides temperature and humidity change environment for scientific research and production units such as aerospace, aviation, petroleum, chemical industry, automobile, ship, electronics, communication, etc. Provide reliability testing, product screening, etc. for the safety testing of electronic components. It is widely used in high temperature test, low temperature test, temperature-low pressure test function of various connectors, cables, micro-motors, etc.
Fulfill the standard:
3.1.GB/T 2423.1-2008 Test A: Low temperature test method
3.2. GB/T 2423.2-2008 Test B: High Temperature Test Method 3.3. GB/T2423.3-2008 Constant Damp Heat Test
3.4. GB /T2423.42008 Alternating Damp Heat Test 3.5. GB /T2423.21-2008 Low Pressure Test Method
3.6.GB/T2423.22-2008 test Nb temperature change test
3.7.GB/T2423.25-2008 test Z/AM: low temperature/low pressure comprehensive test;
3.8. GB /T2423.26-2008 test Z / BM; high temperature / low pressure comprehensive test;
3.9.GJB150.2A-2009 Low pressure (altitude) test and other test standards
technical parameter |
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temperature range |
60ºC~+150ºC |
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temperature fluctuation |
≤±0.5ºC (at normal pressure, no load, constant state) |
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temperature uniformity |
≤2ºC (at normal pressure, no load, constant state) |
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temperature deviation |
≤±2ºC (at normal pressure, no load, constant state) |
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Heating and cooling rate |
Air temperature: -60ºC-+150ºC, the whole process average ≥1ºC/min, normal pressure, with load of 10kg aluminum ingot; |
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Air temperature: +150ºC-60ºC, the whole process average ≥1ºC/min, normal pressure, with a load of 10g aluminum ingot |
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pressure range |
normal pressure~0.5kPa (common pressure 62kPa, simulated altitude 4km) |
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buck rate |
normal pressure~1.0kPa depressurization time≤30min |
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pressure recovery rate: ≤10.0kPa/min |
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fast buck |
rapid decompression: 75.2kPa--18.8 kPa ≤15s |
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pressure deviation |
when the pressure is ≥40KPa: ≤±2KPa |
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when the pressure is 4KPa~40KPa: ≤±5% |
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when the pressure is ≤4KPa: ≤±0.1KPa |
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rate of change of air pressure |
K15kPa/min (adjustable) |
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fulfill the standard |
CB/T 2423.21-2008 Basic environmental test procedures for electrical and electronic products
Test method for low air pressure |
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acceptance Criteria |
CB/T5170 |
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The operating technical data of the above products are all at room temperature of 20 ºC except for the temperature recovery time, relative humidity ≤ 85R. H, (cooling water temperature 5~28 ºC, water supply pressure at 0.1Mpa~
0.3Mpa), the test box is empty, and the temperature/pressure is constant for two hours.