Residual Hardness Monitoring – Ensuring Reliable Operation of Medical Water Systems
Monitoring the residual hardness of water is a critical component in clinical water treatment, as it significantly affects the performance and lifespan of water-bearing systems and medical devices. Residual hardness, measured in degrees of German hardness (°dH), indicates the concentration of dissolved calcium and magnesium ions in the water. These ions are the main cause of lime scale build-up, which can lead to blockages, efficiency loss, and increased maintenance requirements in pipelines and devices.
Testomat
The Testomat from the Heyl product range offers reliable and automated monitoring of water hardness levels. It enables continuous measurement of residual hardness and provides early warnings when threshold values are exceeded – ideal for hospitals, laboratories, and other sensitive environments where low-hardness water is essential for smooth and safe operations.
Testomat 808: Continuous Hardness Limit Monitoring Online measurement of residual water hardness with automatic color change Measurement Principle and Technical Features Modern indicator pump system supporting an automated process with minimal reagent and water consumption. Internal and external flushing options, manual safety check for up to 72 hours of unattended operation (BOB operation), and interfaces for 4–20 mA signals and RS232 firmware updates. Purchase Benefits 3% shop discount when purchasing a Testomat 808 Free of charge: original Heyl indicator for hardness measurement
Precise Water Hardness Analysis for Automated Process and System Monitoring with the Testomat EVO TH Fully automatic water hardness determination via titration The Testomat EVO automatically detects the water level when filling the measuring chamber and can also operate for extended periods in BOB mode without constant supervision. With an integrated SD card or optionally an SDHC card (2 GB), measurement data and messages/alarms can be recorded. The menu is available in multiple languages, and firmware updates can be conveniently applied via the SD card. Analog outputs and serial interfaces allow external processing of measurement data. Certified and Cost-Effective Standalone Water Hardness Meter With the Testomat EVO, you benefit from stable, low-maintenance continuous operation, minimal consumption of indicator solution and water, as well as versatile data communication via RS232 or 0/4–20 mA signals. Certification according to relevant safety and TÜV standards (WÜH certification for boiler houses) and the compact design make the EVO a robust and efficient solution for demanding measurement tasks. Applications for the Testomat EVO Water treatment Drinking water systems Industrial boilers Process water monitoring When purchasing the Testomat EVO online, you receive, in addition to a 3 % online discount on Heyl devices, a free indicator of your choice.