ConstaMatic® TR – Cyclic Corrosion Test Chamber

Liebisch ConstaMatic® A-TR test chambers have been developed specifically for cyclic corrosion testing. The device can be configured with required Liebisch systems such as S-K-B-W-D-F-R-C-Frost, depending on the testing standards to be met.

Unlike the ConstaSal® M-TR, ConstaCon® M-TR, and ConstaTwin® M-TR models, the ConstaMatic® A-TR is equipped with a programmable touchscreen PLC control panel. This PLC panel, available in multiple languages including Turkish, not only allows programming of cyclic corrosion tests but also offers excellent documentation features. During tests, set values and actual measurements are recorded over time. Optionally, data can also be transferred to a PC via USB or LAN. If an issue arises that could compromise test reliability—such as low air pressure, insufficient demineralized water, or power outage—the device logs the error and time, stops the test, and awaits operator intervention. Optionally, the device can notify the operator via email to minimize downtime and maintain test quality.

The ConstaMatic® A-TR is made entirely of glass fiber-reinforced plastic. There are no metal components or heating units inside the test chamber that could be affected by corrosion, ensuring long-term durability. Test chambers are available in 400, 1000, and 2500 liters, with optional custom sizes of 1200 and 3000 liters. The device is top-loading, ideal for large samples. Standard models feature a double-walled, high thermal insulation lid, which enables low energy consumption during high-temperature tests such as copper chloride–acetic acid enhanced tests at 50°C or above. An optional transparent Plexiglass lid, available for SKB systems only, allows visibility into the chamber during tests. The 400 and 1000 liter models have double gas struts, while the 2500 liter model uses a pneumatic piston for easy and safe operation.

The ConstaMatic® TR has specially designed wide heating cells—located on the front and rear walls for salt spray testing, and on the bottom for condensation testing. These are fully thermally insulated, providing highly homogeneous temperature distribution and excellent energy efficiency. Isolated from the corrosive atmosphere, these heating cells ensure years of maintenance-free operation. The device features two separate outlets—one for air exhaust and one for condensate drainage during humidity tests—keeping salt fog inside the chamber and protecting other lab equipment from corrosion. A removable filter at the drainage outlet prevents clogging due to corrosion residues, ensuring a reliable testing environment.

Designed for long-term cyclic corrosion testing that can last several weeks, the ConstaMatic® A-TR is also favored by many customers for continuous salt spray or condensation testing due to its advanced user interface. For users who plan and schedule their tests in alternating cycles, the ConstaMatic® A-TR provides both space and cost efficiency. It is a fully automatic corrosion test chamber, requiring no operator intervention apart from routine parameter checks during the test.

With a multilingual interface (including Turkish), the ConstaMatic® A-TR is user-friendly. Test parameters for many standard test norms are preloaded and can be automatically applied by selecting the relevant standard from the test menu. The device can be scheduled to start or stop the test at a specific time. Its calibratable, sophisticated digital dosing pumps ensure stable dosing of test solutions during salt spray and humidity cycles. These pumps are unaffected by hose stiffness, unlike peristaltic pumps, and do not require monthly maintenance or part replacement.

At the end of the test or before opening the lid for sample inspection, the operator activates the ventilation system to inject fresh air into the chamber and expel corrosive fog through the exhaust. Within minutes, the chamber is safe to open without releasing corrosive fumes into the lab environment, protecting nearby equipment.

Thanks to carefully calibrated PID control parameters for each chamber size and test type (salt spray, condensation, or cyclic tests), temperature fluctuation in the test chamber and humidification tower stays within ±1°C.

As long as high-quality air, demineralized water, and salt are supplied, the ConstaMatic® A-TR will function trouble-free for years with minimal maintenance. However, periodic maintenance is recommended due to potential algae formation in the solution intake lines and contamination in the humidification tower caused by impurities in water and air. The standard maintenance interval is annually, but may be extended up to two years under favorable environmental conditions. Maintenance is provided locally by Kar Kimya’s service team in Turkey.