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Digital Microwave Moisture Measurement for Concrete, Asphalt and Process Industries from Hydronix

The Hydro-Mix HT is a digital moisture sensor for applications that use high temperatures during material processing. The sensor when installed will fit flush with the the internal wall of a ducting system, floor of a mixer or conveyor. It will accurately measure moisture content of the material at 25 times per second as it passes across the ceramic face plate during processing.

Hydro-Mix HT Moisture Sensor for High Temperature Processes

High Temperature Range

The Hydro-Mix HT will operate in process temperature ranges from 0-120°C, and for short periods up to 130°C.

Digital Measurement Technology

Hydronix unique sensing technology provides precise, linear moisture measurement.

Advanced Digital Signal Processing

The sensor response may be adjusted remotely using the Hydro-Com software to minimise the effects of noise of the measured signal. Advanced Digital Signal Processing provides a clear signal with a rapid response.

Measurement Modes

Choice of measurement modes for optimising sensor performance in a variety of applications and material types.

Measuring in the Process

Measuring at 25 times per second the sensor continuously detects changes in the moisture of the materials throughout processing.

Fully Temperature Compensated Measurement

The sensor internally adjusts for mechanical changes due to temperature fluctuations

Wear Life

Under normal use and regular maintenance, the sensor will last for many years.

Accuracy of Measurement

All measurements may, if required, be calibrated to an accuracy of +/- 0.2%. If used to reach a target the accuracy can be better than 0.1%

Easy to Interface

Two analogue outputs and digital RS485 communications and configurable digital inputs / output make the sensor simple to integrate into a control system.

Sensor Configuration

The Hydro-Mix HT can be remotely configured using Hydro-Com diagnostic software. All readings and sensor parameters are available including the type of output and filtering characteristics.


The sensor may be internally calibrated using the Hydro-Com software, or the linear output may be calibrated within the control system or by use of the Hydronix Hydro-View calibration unit.

Simple Power Requirements

The Hydro-Mix may be powered from a 15-30V dc supply. Multiple sensors may be driven from a single power source.