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Environmental low air pressure chamber
Application:
High low temperature low air pressure test chamber is mainly used in aviation, aerospace, information, electronics and other industrial sectors to determine environmental adaptability and reliability of electrical and electronic products (including components, materials and instruments) under the action of high, low temperature and low air pressure alone or at the same time, and can carry out the electrical performance parameters tests by powering on the specimen at the same time.
Technical parameter:
Model |
QD701HD |
QD702HD |
QD705HD |
QD710HD |
Internal volume |
120 L |
180 L |
504 L |
1000 L |
Internal dimensions (D*W*H) |
400*500*600 mm |
500*600*600 mm |
700*800*900 mm |
1000*1000*1000 mm |
External dimensions (D*W*H) |
1900*800*1550 mm |
2050*900*1550 mm |
3250*1150*1950 mm |
3400*1450*1950 mm |
Temperature Control mode |
BTPC: Balanced temperature & pressure control |
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Working environment temperature |
+5…+35 ℃ |
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Performance | ||||
Temperature range* |
-70℃...+150℃ (high temperature: 180℃, optional); |
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Pressure range |
Atmospheric pressure... 0.5 kPa |
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Temperature fluctuation |
≤±0.5℃ (under atmospheric pressure, no-load) |
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Temperature uniformity |
≤2℃ (under atmospheric pressure, no-load) |
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Temperature deviation |
≤±2℃ (under atmospheric pressure, no-load) |
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Pressure accuracy |
Atmospheric pressure～40KPa: ±2 KPa; 40KPa～10KPa :±5%; |
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Heating time |
≤60 min. (25℃…+100℃) |
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Cooling time |
≤90 min. (+25℃…-70℃) |
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Pressure recovery rate |
≤1 kPa/min |
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Depressurization time |
Atmospheric pressure~10KPa, ≤30min; |
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Material | ||||
Shell material |
Cold rolled sheet steel, spray plastics on surface |
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Internal material |
Stainless steel |
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Thermal insulation material |
Polyurethane foam + glass wool |
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Refrigeration system | ||||
Refrigeration mode |
Mechanical compression, two-stage refrigeration |
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Compressor |
Imported enclosed/ semi-enclosed compressor |
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Cooling mode |
Air cooling/ water cooling |
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Heater |
Stainless steel heater |
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Blower |
Centrifugal blower |
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Vacuum pump |
Leybold, Germany |
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Temperature sensor |
PT100 |
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Controller |
Touch screen, programmable control; |
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Power supply |
AC380V, 50Hz, three-phase four-wire + earth wire; |
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*Note: temperature range -40℃~+150℃: QD4**HD series; High-low temperature low air-pressure test chamber with humidity from 20 to 98% R.H .: THP *** HD series.
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