IEC 60068 Programmable Constant Temperature and Humidity Test Chamber – Continuous Testing for 30 Days
Standard Compliance:
This test chamber adheres to several key standards:
- IEC60068-2-1:2007: Environmental Testing-Part 2-1: Tests-Test A: Cold, IDT.
- IEC60068-2-2:2007: Environmental Testing-Part 2-1: Tests-Test B-Dry heat, IDT.
- IEC60068-2-78:2012: Environmental Testing-Part 2-78: Tests-Test Cab: Damp heat, steady state, IDT.
- IEC60068-2-30:2005: Environmental Testing-Part 2-30: Tests-Test Db: Damp heat, cyclic (12h+12h cycle), IDT.
Application:
- Electronics & electrical product reliability testing
- Automotive component validation
- Plastic and material aging tests
- Laboratory environmental simulation
- Quality control and certification testing
Designed to ensure product reliability during storage and transportation under cyclic temperature variations and humid conditions.
Features:
- Wide Temperature and Humidity Control Range:
- The chamber offers a broad range of temperature and humidity control to meet diverse user requirements.
- Balanced Temperature and Humidity Control:
- It employs a unique balanced control method to create an ideal environment with stable heating and humidification capabilities. This results in high precision and stability in temperature and humidity control.
- Automatic Refrigeration Circuit Selection:
- The automatic control device can start the refrigeration circuit based on the set temperature value. It can initiate cooling directly under high-temperature conditions using a fully enclosed compressor (imported) air-cooled condensing unit.
- Observation Window:
- An observation window on the door allows users to monitor the test status of samples conveniently.
- Continuous Extreme Condition Testing:
- The chamber can perform continuous testing at extreme temperature and humidity points for up to 30 days.
Technical parameters:
| Model | BND-HWS-150L |
| Sample Limit | This test equipment is prohibited from testing samples of flammable, explosive, and volatile substances; testing of samples of corrosive substances, testing of biological storage, testing of samples of strong electromagnetic radiation sources, and storage. |
| Volume, weight and dimensions | |
| Inner box effective dimensions | 500×500×600(mm) W×D×H |
| Outer space | W800*H1720*D1280(W×D×H) |
| Weight | About 280㎏ |
| Operating noise | ≤75db measured in front of the machine, 1 meter away from the machine and 1.2 meters above the ground |
| Power, Current and Power Supplies | |
| Maximum power | 8KW |
| Power supply conditions and power supply | AC220V three-phase four-wire system + protective grounding; voltage fluctuation range ±10%V; frequency fluctuation range 60±0.5Hz; TN-S power supply or TT power supply; protective ground wire grounding resistance less than 4Ω; users are required to configure air or power switches of corresponding capacity for the equipment at the installation site, and this switch must be independently controlled. When the equipment is used to place powered test materials in the box, please use an external power supply for the test materials, and do not use the power supply of the machine directly; |
| Performance Indicators | |
| Operating environment conditions | 1. The ambient temperature is 5-30℃, and the relative humidity is ≤85%R.H;
2. The installation site must be flat and vibration-free; 3. The equipment must be away from heat sources and flammable and explosive materials; 4. The installation location cannot be exposed to direct sunlight, and indoor air circulation must be maintained; 5. The equipment installation site must be clean and cannot be installed in dusty places or dust outlets, etc. |
| Temperature and humidity range | Temperature range: -70℃~+150℃ Humidity range: 20~98%R.H (20℃~+85℃) |
| Control accuracy | Temperature resolution: 0.01℃ Humidity resolution: 0.1%R.H
Temperature deviation: ±2℃ Humidity deviation: ±3%R.H Temperature uniformity: ≦±2℃ Humidity uniformity: ≦ 3%R.H Temperature fluctuation: ±0.5℃ Humidity fluctuation: ± 2%R.H |
| Heating and cooling rate | Heating time: -70℃→+150℃, average ≧3-5℃/min
Cooling time: 150℃→-70℃, average ≧1℃/min |
| Test Points | Continuous test at extreme temperature for 30 days |
| Note: The load per cubic meter is not greater than the heat capacity of 35kg/m3 steel. There is no active heat load during the wet heat test. | |
| Note: The above performance indicators are measured at an ambient temperature of +25°C, relative humidity ≤85%R.H, and without a sample. | |

How It Works?
The system integrates multiple subsystems:
- Heating system for rapid temperature rise
- Refrigeration system for low temperature control
- Humidification system for moisture regulation
- Air circulation system for uniform distribution
Together, these systems create a stable and controlled testing environment.
How to Choose the Right Chamber
Selecting the right chamber depends on:
- Required temperature range (e.g. -40°C / -70°C)
- Humidity control requirements
- Sample size and testing volume
- Industry standards and test methods
For large-scale testing, the Walk-In Environmental Test Chamber is recommended.
For standard lab use, compact models such as the 150L Temperature & Humidity Test Chamber are ideal.
Get the Right Testing Solution
- Custom configurations available
- Fast delivery and global shipping
- Professional technical support
Request a quote today and get expert guidance for your testing requirements.
Frequently Asked Questions About Temperature and Humidity Test Chambers:
1. What is IEC 60068 testing?
IEC 60068 is an international standard used to evaluate product performance under environmental stress conditions such as temperature and humidity.
2. What is a temperature and humidity test chamber used for?
It is an environmental testing system used to simulate temperature and humidity conditions for evaluating product reliability.
It is widely used in electronics, automotive, aerospace, materials, and laboratory testing industries.
3. How do I choose between a standard and walk-in chamber?
Standard chambers are suitable for small samples and laboratory testing, while walk-in chambers are ideal for large products or batch testing.
4. Can the chamber be customized?
Yes, size, temperature range, and control systems can be customized based on your testing requirements.
5. Do you provide after-sales support?
Yes, we provide full pre-sales and after-sales support, including technical guidance, maintenance advice, and prompt assistance.



