ABB’s DS20+ and DS30+ Moisture Sensors provide accurate, reliable moisture measurement on a wide range of applications. These sensors are optimized for high basis weight and use the unique properties of microwave technologies to penetrate through the layers of thick materials.
To determine the amount of water in the sheet, these sensors utilize a ratiometric resonance technique which compares the resonance frequency of the measurement cavity and the product being measured. This frequency difference correlates to areal weight of water in the product. Conversion to percent moisture is accomplished through a proprietary ABB algorithm and the basis weight measurement or a grade code value established for the product.
The robust ratiometric measurement principle and electronic components are the industry benchmark for measuring heavy webs. DS20+ and DS30+ Moisture Sensors provide fully integrated measurements at a rate of over 1000 times per second.
Calibration is permanent, linear and easily transferable. ABB Sensors are modular and feature robust components with self-calibrating and self-testing electronics for low life-cycle costs. In addition, extensive sensor health monitoring and reporting is incorporated with all ABB sensors to minimize setup, diagnostics and troubleshooting.