Damp Heat Test Chambers
Long-Term Humidity Reliability Testing for PV Modules and Electronic Systems. Damp heat testing exposes products to prolonged high temperature and high humidity conditions to accelerate aging mechanisms such as corrosion, insulation degradation, delamination, and moisture induced electrical failures.
Standards Compliant Testing
IEC 61215 – Damp Heat (DH) Test for PV Modules | Full-size PV modules | Product Temperature Control
Why Damp Heat Testing Is Critical for Long-Term Reliability
Innovation Rooted in Engineering Depth
For photovoltaic (PV) modules and outdoor electronics, damp heat testing is a mandatory qualification step to validate long-term durability under hot and humid operating environments.
Purpose-Built Damp Heat Chambers for PV and Industrial Testing
CME Damp Heat Test Chambers are engineered for continuous, long duration operation at elevated temperature and humidity levels required by international standards.
These chambers deliver stable environmental conditions over extended test periods, often spanning hundreds or thousands of hours, without drift or interruption.
Compliance with Global PV Testing Standards
- IEC 61215 – Damp Heat (DH) Test for PV Modules
- IEC 61730 – Safety Qualification for PV Modules
- UL 1703 / UL 61730
IEC 60068-2-78 (Damp Heat, Steady State) - IS / IEC standards applicable to environmental qualification
Stable High-Temperature and High-Humidity Control
CME damp heat chambers provide precise control of temperature and relative humidity under continuous operation conditions.
Optimized airflow design, corrosion-resistant humidification systems, and robust insulation ensure uniform exposure across the entire test volume.
Typical Applications
- PV module qualification and certification testing
- Reliability testing of electronics and electrical assemblies
- Insulation and material aging studies
- Failure analysis and design validation
- R&D testing for harsh-environment products
Digital Intelligence with enviCoM® 4.0
CME Damp Heat Chambers are powered by enviCoM® 4.0, CME’s proprietary digital control and IoT platform.
The system enables real-time monitoring, secure long-duration data logging, alarm management, and automated compliance reporting.
Prepare for IEC PV Module Qualification
Configure thermal cycling, humidity freeze, damp heat, and UV preconditioning systems.
| Model | MWC10.5K | MWC14K | |
|---|---|---|---|
|
Test Space Dimension |
in mm (WxDxH) |
1400 x 2800 x 2700 |
3251 x 1575 x 2718 |
|
in inches (WxDxH) |
55.11 x 110.23 x 106.30 |
128 x 62 x 107 |
|
|
Test Space Volume |
in Ltrs |
10585 |
13970 |
|
in Cu.ft |
370 |
490 |
|
|
Temperature Range |
°C |
+80 to +85 |
|
|
°F |
+176 to +185 |
||
|
Ramp Rates |
|
NA |
NA |
|
Humidity Range |
|
85% RH |
|
|
Panel Size |
50 x 1500 x 2500 |
50 x 1500 x 2500 |
|
|
No of panels |
Nos |
10 |
25 |
Data-Driven Long-Duration Testing
High-resolution temperature and humidity data ensure full traceability throughout extended damp heat test programs.
Digital records simplify audits, certification processes, and OEM qualification reviews.
Chamber Configurations for Long-Term Testing
CME Damp Heat Chambers are available in reach-in and walk-in configurations to accommodate small components through large PV modules.
Custom racks, specimen mounting, corrosion-resistant interiors, and feedthroughs can be configured to meet specific test requirements.
Engineered for Continuous, High-Stress Operation
Damp heat testing places sustained stress on chamber components.
CME chambers are manufactured in a digitally orchestrated production environment with strict quality control and factory validation to ensure uninterrupted long-term performance.
Lifecycle Support with Levito
Through CME’s lifecycle partner Levito, damp heat chambers are supported with installation, commissioning, calibration, preventive maintenance, and long-term service.
Why Choose CME Damp Heat Chambers?
- Designed for long-duration, high-humidity operation
- Standards-compliant damp heat performance
- Uniform temperature and humidity stability
- Digital-first controls and long-term data traceability
- Strong lifecycle and service support
Also Known As
- Damp Heat Test Chamber
- IEC 61215 Damp Heat Chamber
- PV Damp Heat Chamber
- High Temperature Humidity Test Chamber
- Environmental Aging Test Chamber
Why Choose CME Damp Heat Chambers?
- Designed for long-duration, high-humidity operation
- Standards-compliant damp heat performance
- Uniform temperature and humidity stability
- Digital-first controls and long-term data traceability
- Strong lifecycle and service support
Why is damp heat testing important for solar panels?
Solar modules operate outdoors for 20–30 years and are exposed to humidity, rain, and tropical climates. Damp heat testing ensures long-term durability against moisture ingress, corrosion, insulation failure, and power degradation.
What standard specifies damp heat testing for PV modules?
The primary standard is IEC 61215, which defines damp heat test requirements for crystalline silicon and thin-film modules. IEC 61730 addresses safety aspects related to insulation and leakage.
What are the standard test conditions for damp heat?
As per IEC 61215, modules are exposed to 85°C temperature and 85% relative humidity (85/85 test) continuously for 1,000 hours.
Can damp heat testing be extended beyond 1,000 hours?
Yes. Extended reliability programs may require 2,000 or 3,000 hours of exposure to evaluate long-term durability for high-humidity or tropical installations.
Can damp heat testing be extended beyond 1,000 hours?
Yes. Extended reliability programs may require 2,000 or 3,000 hours of exposure to evaluate long-term durability for high-humidity or tropical installations.
What failures can occur during damp heat testing?
Common failures include corrosion of cell interconnects, delamination of encapsulant materials, backsheet degradation, junction box failure, increased leakage current, and significant power output reduction.
Does damp heat testing include electrical bias?
Standard damp heat testing is typically performed without electrical load. However, advanced tests like damp heat with system voltage bias (DH+V) may apply voltage to evaluate potential-induced degradation (PID).
How is module performance evaluated after damp heat testing?
Electrical performance is measured before and after testing using flash testing to determine power degradation. Visual inspection, insulation resistance tests, and electroluminescence (EL) imaging are also conducted.
What is the difference between damp heat and thermal cycling tests?
Damp heat evaluates moisture resistance under constant high temperature and humidity, while thermal cycling evaluates resistance to repeated temperature fluctuations between extreme hot and cold conditions.
How long does a damp heat test take?
A standard 1,000-hour damp heat test runs continuously for approximately 42 days. Extended tests may take several months depending on the required duration.
Solar & Photo Voltaic Modules
UV Preconditioning Test Chambers
UV Preconditioning Test Chambers Accelerated Ultraviolet Exposure Testing for PV Module Reliability. Photovoltaic (PV) modules are continuously exposed to ultraviolet (UV) radiation throughout their service life. Prolonged UV exposure accelerates
Humidity Freeze Test Chambers
Humidity Freeze Test Chambers Accelerated Reliability Testing for PV Modules Under Moisture and Freezing Stress. Photovoltaic (PV) modules deployed in real world environments are exposed to cycles of high humidity
Thermal Cycling Test Chambers
Thermal Cycling Chambers for PV Module Testing Accelerated Reliability Testing for Solar Modules Under Extreme Thermal Stress, Photovoltaic (PV) modules are exposed to repeated temperature fluctuations over their operational life,