Walk-in High/Low Temperature and Low Pressure Test Chamber,Walk-in High and Low Temperature Test Chamber

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.

FAQ

1. What types of equipment can be tested in this chamber?

You can test aerospace electronics, communication devices, new energy components, and other large-scale equipment requiring high/low temperature and low-pressure conditions.

2. How precise is the temperature and pressure control?

Temperature fluctuation is ≤±0.5℃ and uniformity is ≤2℃ at atmospheric pressure. Pressure deviation is ±2 kPa (101.3–40 kPa), ±5% (40–4 kPa), and ±0.1 kPa (4–1 kPa).

3. What is the maximum simulated altitude?

The chamber can simulate altitudes of 10.000 meters or higher.

4. Can it perform coupled environmental tests?

Yes, you can simultaneously simulate temperature extremes and low-pressure conditions to test equipment under real-world high-altitude scenarios.

5. How long does it take to reach low-pressure conditions?

The pressure can decrease from atmospheric to 1 kPa within 30 minutes, adjustable based on test requirements.

6. Is the chamber suitable for continuous testing?

Yes, the chamber is designed for long-duration tests with precise environmental control.

7. How should the chamber be maintained to ensure long-term performance?

Regular inspection of seals, vacuum pump maintenance, cleaning of the stainless steel interior, and periodic sensor calibration are essential for reliable operation.

Qinsun Instruments Co., LTD is a professional laboratory testing instrument manufacturer in China,Have been focusing on laboratory instrument R&D more than 30 years and have rich industry experience,Based on international testing standards,We are also the instrument supplier for BV SGS laboratory,We provide one-stop solutions for lab instruments,Free Training and Turn-Key Service,Products exported all over the world,Offer 36 month warranty and are a trustworthy partner.

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