Dmass

Flow Measurement of bulk solids using Velocity and Density

for pneumatic conveying and freefall processes (1-500 tph)
High Accuracy and Repeatability
Solids flow measurement for all types of powders, granules, flakes, etc.
Long-term stable, reliable, & robust
Sensor supply for connections up to 1000m
Options: High Temperature, High Pressure, Food-grade liner, Teflon liner, and more
Three analog 4-20 mA outputs, RS485 and alarm relay

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Application Overview

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Use

The Dmass is a flow meter used to determine the mass flow rate of bulk material. Almost any product such as dust, powders or granulates which are being transported in pneumatic conveying systems or by gravity in pipelines can be measured.

Simultaneously the device measures the concentration and the velocity of the bulk material in the pipeline. With these two values and the given diameter of the measuring pipeline, the mass flow rate is calculated and output through the evaluation unit.

Function

The device measures the average velocity and concentration of gas-bearing or falling solids without contact, integrally across the cross-section of the transport channel.

The measurement is capacitive.
For a reliable measurement, no electrically conductive layer must form on the inner wall, for example due to abrasion or moisture.
The sensor surface is arranged in the sensor mechanics outside an electrically insulating pipe (e.g. GRP).

A noise signal is generated due to statistical fluctuations in the particle flow. This signal appears in a similar form on two sensor surfaces with a time offset. This time offset depends linearly on the particle velocity.