test chamber volume: 1000L
working chamber dimensions (W×D×H): 1000×1000×1000mm
external dimensions (W×D×H): 1450×3400×2000mm
power supply: AC380V±10%, 50Hz±1, three-phase four-wire + ground wire (3/N/PE), grounding resistance < 4Ω
max. system power: 52KW
max. system current: 80.4A
cooling method: Water-cooled (refrigeration unit)
temperature range: -70℃ ~ +150℃
temperature uniformity: ≤2.0℃ (no load, normal pressure)
temperature deviation: ≤±2.0℃ (no load, normal pressure)
temperature fluctuation: ≤±0.5℃ (no load, normal pressure)
heating rate: <1℃/min (-55℃ ~ +85℃, full-cycle average, air outlet)
cooling rate: <1℃/min (+85℃ ~ -55℃, full-cycle average, air outlet)
normal pressure reduction: pressure range: normal pressure ~ 1.0KPa (adjustable); pressure reduction time: ≤30min (normal pressure → 0.5KPa)
rapid decompression: decompression range: 75.2KPa ~ 18.8KPa; decompression time < 15s; equipped with vacuum reservoir, stable at 18.8KPa after decompression, overshoot range ±5%; external rapid decompression chamber included (volume < 1/5 of main chamber)
explosive decompression: decompression range: 75.2KPa ~ 18.8KPa; decompression time < 0.1s
pressure recovery rate: <10KPa/min (adjustable)
low pressure temperature performance: temperature deviation < ±5℃; temperature fluctuation ≤±5℃ (4KPa~40KPa), ≤±10℃ (1KPa~4KPa)
pressure control accuracy: ±20mbar (≥400mbar); ±5% of target value (20mbar~400mbar); ±1mbar (≤20mbar)
test specimen requirement: Suitable for heat-dissipating and non-heat-dissipating samples; heat dissipation power shall not exceed the cooling capacity of the refrigeration system
operation remarks: Tested per GB/T 5170-2008 & GB/T 10590-2006; different ambient temperature will affect low temperature performance and cooling capacity
core functions: Support combined test of high/low temperature, humidity and pressure, energized test for specimens, Excellent temperature/humidity uniformity & accuracy, Complete safety interlock protection, Low noise operation, Energy-saving design, Automated data logging, High-precision temperature control, Seamless MES integration, Service life: ≥5 years for long-term stable operation
applicable standards: GB/T 2423.1, GB/T 2423.2, GB/T 2423.21, GB/T 2423.25, GB/T 2423.26, GJB 360B, GJB 150.2A, GJB 150.3A, GJB 150.4A, GJB 150.6, RTCA/DO-160G
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