Walk-in High Low Temperature Low Pressure Test Chamber
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TheWalk-in High/Low Temperature and Low Pressure Test Chamberis a precision environmental simulation instrument designed to replicate high-temperature, low-temperature, and low-pressure composite conditions. You can use it to perform single-parameter or multi-parameter coupled environmental tests on large-scale equipment, ensuring reliability and performance verification under extreme conditions.
Applications
Avionics equipment testing, spacecraft vacuum thermal testing, new energy sectors (high-altitude lithium battery and photovoltaic inverter testing), and electronic equipment stability verification (5G base stations, communication equipment, etc.).
Standards
GB/T 10590-2006 Technical Specifications for High/Low Temperature and Low Pressure Test Chambers
GB/T 2423.25 Environmental Testing for Electrical and Electronic Products. Part 2: Test Methods. Test Z/AM: Combined Low Temperature/Low Pressure Test
GB/T 2423.26 Environmental Testing of Electrical and Electronic Products. Part 2: Test Methods. Test Z/BM: Combined High Temperature/Low Pressure Test
GJB 150.2A Laboratory Environmental Test Methods for Military Equipment. Part 2: Low Pressure (Altitude) Test
GJB 367.2 General Technical Conditions for Military Communication Equipment. Environmental Test Methods
Features
1.Walk-in design accommodates large equipment and multiple test samples simultaneously.
2.Capable of simulating extreme high/low temperatures and low-pressure environments with precise control.
3.Pressure and temperature control systems ensure uniformity and minimal fluctuation for reliable results.
4.Adjustable pressure change rates allow simulation of realistic ascent/descent conditions.
5.Stainless steel chamber construction with sandblasted surface ensures durability and easy maintenance.
6.Multi-parameter coupling allows high fidelity simulation of complex environmental conditions.
Parameters
| Item | Specifications |
|---|---|
| Nominal Internal Volume | 12.1 m³ |
| Chamber Internal Dimensions | 2500 mm (L) × 2300 mm (W) × 2100 mm (H) |
| Chamber Structure | Integral construction required for the equipment chamber |
| Chamber Material | Inner liner made of stainless steel with sandblasted surface treatment |
| Temperature Range | -45°C ~ +130°C (maintainable under both normal pressure and vacuum conditions) |
| Temperature Fluctuation | ≤±0.5°C (under normal pressure) |
| Temperature Uniformity | ≤2°C (under normal pressure) |
| Temperature Deviation | ≤±2°C (under normal pressure) |
| Pressure Range | 101.3 kPa ~ 20 kPa |
| Pressure Change Rate | ≤10 kPa/min (adjustable); from normal pressure to 1 kPa ≤30 min |
| Pressure Recovery Rate | ≤10 kPa/min (adjustable and controllable) |
| Pressure Deviation | ±2 kPa (normal pressure ~ 40 kPa)±5% (40 kPa ~ 4 kPa)±0.1 kPa (4 kPa ~ 1 kPa) |
| Pressure Reduction Time | From normal pressure to 20 kPa ≤30 min |
| Simulated Altitude | ≥10.000 meters |
Accessories
1.Digital temperature and pressure control system
2.Vacuum pump and pressure regulation system
3.Data acquisition and monitoring software
4.Safety interlocks and alarm system
5.Adjustable shelving and mounting fixtures for test samples
Test Procedures
1.1.Equipment Preparation
Verify chamber integrity, power supply, and control system calibration.
Confirm vacuum pump and pressure regulation system functionality.
Prepare test samples and arrange securely inside the chamber.
2. 2.Parameter Setting
Set desired temperature and pressure profiles according to test requirements.
Adjust pressure change rate to simulate ascent or descent conditions.
Enable data logging and monitoring functions.
3. 3.Test Execution
Start the chamber and allow environmental parameters to reach target values.
Monitor temperature and pressure uniformity throughout the test duration.
Record any deviations or alarms for analysis.
4. 4.Test Completion
Gradually return chamber to standard temperature and pressure conditions.
Safely remove test samples and review data for evaluation.
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