Electricity and Control November 2020

COVER ARTICLE

Magnetic-inductive volumetric flow meters

also be configured as a scalable analogue output. For consumed quantity monitoring, the other output transmits counting pulses to the controller. In addition to volumetric flow monitoring, the SMmonitors the temperature of the medium. This is displayed on the

ƒ With volumetric flow quantity, total quantity and temperature indication ƒ High accuracy, repeatability and measurement dynamics ƒ For use in conductive media from 20 μS/cm ƒ With switching output, analogue output and pulse output ƒ Clearly visible LED display The magnetic-inductive volumetric flow sensors of the SM series from ifm monitor liquids. They detect the three process categories: volumetric flow quantity, consumed quantity and medium temperature. They are frequently used in cooling circuits, for example in steelworks, the automotive industry and in glassmaking. In water management and industrial installations, the sensors are used for water consumption measurement. Peak consumption, present consumption or accumu- lated consumption can be accessed and adjusted via programmed switch and alarm level settings – all at the touch of a button. The units feature two switching outputs which can be programmed as normally open or normally closed. For output of the measured value, one switching output can

unit and provided for signal processing. The sensor is thus particularly suitable for monitoring cooling circuits. The robust stainless steel housing and high protection rating provide high security even in harsh environments. Depending on the volumetric flow quantity to be detected, devices with different process connections are offered.

The magnetic-inductive flow sensors of the SM series are often used in cooling circuits and water management systems.

For more information contact ifm South Africa. Tel: +27 (0)12 450 0400, email: info.za@ifm.com Visit: www.ifm.com

In this HVAC system application the SM6500 magnetic-inductive flow meter delivers high accuracy, repeatability and measurement dynamics to optimise energy efficiency.

In water management applications, SM series flow meters measure water consumption.

3 Electricity + Control NOVEMBER 2020