Environmental test equipment

Selection considerations

What a climate chamber does for a module maker

Temperature and humidity chambers age samples under controlled conditions, so you can see how materials and assemblies respond before modules reach the field. They sit in the lab of the testing & inspection stage, next to module electrical safety testing and visual inspection. A typical sequence measures and images a sample, ages it in the chamber, then measures and images it again. Your test plan and those before-and-after results decide pass or fail; the chamber supplies the controlled exposure.

What goes into the chamber

Most samples come from incoming materials and sub-assemblies: encapsulation film such as First Applied Material's EVA film, backsheet materials such as Juner's EB-cured backsheet, potting materials such as Wynca's potting silicone, plus parts from junction-box components, bonding materials and PV cable components. Laminated coupons often come from your own module laminators. For reading ageing claims against lot certificates, see qualifying PV module materials.

Comparing chamber offers

The listed ETH-1000LA from Ningbo Edeson Instrument belongs to a series with several sizes and temperature options, so size the workspace first: coupons, full modules or small parts, with fixtures, racks and cable ports. Then check the combined temperature and humidity envelope, because a chamber that reaches a low temperature and a high humidity separately may not hold both at once. Ask about ramp rates at your real load, water quality for the humidifier, and how the controller logs data and alarms. Drain, water and power connections belong in the site plan; utilities and installation lists what to settle. A loaded chamber behaves differently from an empty one, so accept it on a run with your own fixtures and sample mass.

Running it over years

Long ageing programmes keep a chamber busy for weeks, so plan capacity and spares such as humidifier parts, door seals and sensors. Ask how sensors are calibrated and how often, and whether the maker offers service visits. Keep one log per sample that links material lot, chamber run and results, so a material change can be judged against earlier batches.

Plan the equipment scope

Identify the production step, cell or module format and output unit before comparing equipment. Use the listed source, scope and specifications to prepare a configuration-specific enquiry. Missing values are left unspecified and do not count as exact filter matches.

Read equipment buying guides or prepare a sourcing brief.