Electricity and Control January 2020

MEASUREMENT + INSTRUMENTATION : PRODUCT NEWS

Compact flow sensor with IO-Link Turck Banner has introduced its FS+ flow sensor – another new product in its fluid sensor series. The sensor is fitted with a robust stainless steel housing, with a one-piece translucent front cap, and is operated like a smart phone via a wear-free touchpad. In addition to flow, the FS+ can continuously measure the temperature of the medium. How the probe is aligned in the pipe is not important here. The bicolour 11-segment LED strip enables either flow or temperature values to be displayed as required. To provide optimum readability, the sensor housing and display can be turned freely through 340°, even after mounting. For fast commissioning, the FS+ makes it possible to detect PNP/NPN signals automatically. Users can also set a switch point in just a few seconds using the Quick Teach function. The Delta Flow monitoring functions ensure that all Teach functions are activated only when the flow is constant, thus eliminating any potential sources of error. Robust materials and the seamless sealing concept of the sensor provide compliance with protection types IP6K6K, IP6K7 and IP6K9K. This enables the FS+ to be used in harsh environments and, for example, to monitor cooling circuits or cleaning processes reliably. The FS+ flow sensor is based on Turck's new fluid sensor platform and is thus a continuation of the modular, freely configurable mechanical concept.

Compact magnetic inductive flowmeter Instrotech has introduced the new MIM magnetic inductive flowmeter from Kobold. MIM now features IO-Link, the short distance, bi-directional, digital, point-to-point, wired, industrial communications networking standard used to connect digital sensors and actuators to either a type of industrial fieldbus or industrial Ethernet. This represents a world-first in magnetic inductive flowmeters. MIM is also available in a remote version for medium temperatures of up to 140°C. The MIM flowmeter was developed for measuring and monitoring smaller- and medium-sized flow volumes of conductive liquids in pipes and operates according to the electromagnetic measurement principle. Faraday’s Law of magnetic induction states that a voltage is induced in a conductor moving through a magnetic field. The electrically conductive measuring agent acts as the moving conductor. The voltage induced in the measuring agent is proportional to the flow velocity and is therefore a value for the volumetric flow. The flowing media must have a minimum conductivity. The induced voltage is picked up by two sensing electrodes, which are in contact with the measuring agent, and sent to the measuring amplifier. The flow rate is calculated based on the cross-sectional area of the pipe. The measurement does not depend on the process liquid and its material properties such as density, viscosity and temperature. Two given outputs can be set to switch, analogue or frequency. A dosing function can also be selected, where output 1 is set as switch NPN / PNP / PP and output 2 is set as control input. Key characteristics and functions of the MIM magnetic inductive flowmeter include: - Stainless steel design - Flow and temperature measurement - Monitoring, dosing and transmitter function - Dosing function with external control input - Coloured, multi-parameter configurable TFT-display, rotatable in 90° steps - Bi-directional measuring - An intuitive setup menu via four optical touch keys - Two configurable outputs (pulse- /frequency- /alarm- and analogue output) - A resettable totaliser.

The first devices of this generation – the PS+ pressure sensors, which won an iF Design Award when theywere launched– have been available since March. Other compact sensors for temperature measurement and level measurement will be added to the fluid platform in future. All the sensors in this range have the same operating principle and are very similar in appearance.

For more information contact Instrotech. Tel: +27 (0)10 595 1831, email: sales@instrotech.co.za

Kobold’s new, stainless steel

magnetic inductive flowmeter incorporates IO-Link.

The FS+ flow and temperature sensor extends Turck Banner’s FS+ fluid sensor series.

For more information contact: Brandon Topham at Turck Banner.Tel: +27 (0)11 453 2468 email: brandon.topham@turckbanner.co.za

20 Electricity + Control

JANUARY 2020