Magnetics Business & Technology - January/February 2021 - 25

PRODUCT NEWS

Magnetic Flowmeter from Endress+Hauser Measures without Restriction
Technology explained

In the water and wastewater industry, high measurement accuracy is indispensable for optimal process control but a variety
of influences such as a close-knit pipeline network or obstacles
in the pipe can cause flow turbulences that affect accuracy. Now,
Endress+Hauser has developed what it says is the world's first
magmeter to measure flow independently of flow profile and
mounting location.
A world leader in electromagnetic flow measurement, the Swiss
company counts more than two million of its magmeters sold
since 1977. The recently introduced Promag W features a " 0 x
DN full bore " option that the company says is the first and only
electromagnetic flowmeter with no inlet and outlet runs (0 x DN),
no measuring tube restriction (full bore) and thus no pressure
loss. The new and innovative measuring concept features multiple measuring electrodes that
detect the flow, generating a substantially higher
density of measured data than for standard
devices.

Endress+Hauser gives this description of the principle of electromagnetic flow measuring: Faraday's law of induction states that
a metal rod moving in a magnetic field induces electrical voltage.
This dynamo principle also governs the way electromagnetic
flowmeters work. As soon as the electrically charged particles
of a fluid cross the artificial magnetic field generated by two field
coils, an electric voltage is induced. This voltage, tapped by two
measuring electrodes, is directly proportional to the velocity of
flow and thus to the flow volume. The magnetic field is generated
by a pulsed direct current with alternating polarity. This ensures a
stable zero point and makes the flow measurement insensitive to
multiphase or inhomogeneous liquids, as well as low conductivity.
The popularity of magmeters across innumerable sectors of
industry continues to be unabated, further proof of the worldwide
success that this measuring principle has been enjoying for more
than 60 years, says the company. Magmeters can be used to
measure all electrically conductive liquids above 5 µS/cm with
or without solids including water, wastewater, sludge, slurries,
pastes, acids, alkalis, juices or fruit mashes. The rule of thumb
for magmeters, the company notes, is that anything that can be
pumped can also be measured - a highly valued trait in measurement technology. Typical tasks include measuring and monitoring continuous flow rates, filling and dosing as well as applications in custody transfer. For more info, see www.endress.com.

The system can be applied to several of its already established models
making them particularly
suitable for installation in
tight spaces as they do
not need any inlet or outlet
runs. They can easily
handle frequently occurring swirl downstream of
obstacles such as pipe
Proline Promag
bends, insertion devices,
W 400 for water
build-up on the pipe wall,
and wastewater
protruding seals or different inside diameters.
Together with refined signal analysis, reliable
measurement results also for swirl are possible.
Previously, in case of flow disturbances, plant
operators either had to comply with the recommended inlet and outlet runs or use a device with
a restricted measuring tube that calms swirl. Yet
sufficiently long straight pipe sections are often
not present and restrictions cause pressure loss
along with higher energy consumption and costs
for pump operation.

www.MagneticsMag.com

January/February 2021 * Magnetics Business & Technology

25


http://www.endress.com http://meda.com http://www.MagneticsMag.com

Magnetics Business & Technology - January/February 2021

Table of Contents for the Digital Edition of Magnetics Business & Technology - January/February 2021

Magnetics Business & Technology - January/February 2021
Editor’s Choice/ Features
eTrucks and eBuses with Permanent Magnet Powertrains Charge into Commercial Vehicle Market
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Protean Electric’s In-Wheel Motor Reaches for Traction in Global EV and Industrial Markets
Embedding Magnetics Achieves Reliability & Consistency, Part 3 of 3
Tech Tips
Research & Development
Product News
Industry News
Events Calendar/ Advertising Index
Visions
Magnetics Business & Technology - January/February 2021 - Magnetics Business & Technology - January/February 2021
Magnetics Business & Technology - January/February 2021 - Cover2
Magnetics Business & Technology - January/February 2021 - 3
Magnetics Business & Technology - January/February 2021 - Editor’s Choice/ Features
Magnetics Business & Technology - January/February 2021 - 5
Magnetics Business & Technology - January/February 2021 - eTrucks and eBuses with Permanent Magnet Powertrains Charge into Commercial Vehicle Market
Magnetics Business & Technology - January/February 2021 - 7
Magnetics Business & Technology - January/February 2021 - 8
Magnetics Business & Technology - January/February 2021 - 9
Magnetics Business & Technology - January/February 2021 - Linear Labs Rolls Toward Production of Its Magnetic Flux Tunnel Motors
Magnetics Business & Technology - January/February 2021 - 11
Magnetics Business & Technology - January/February 2021 - Protean Electric’s In-Wheel Motor Reaches for Traction in Global EV and Industrial Markets
Magnetics Business & Technology - January/February 2021 - 13
Magnetics Business & Technology - January/February 2021 - 14
Magnetics Business & Technology - January/February 2021 - 15
Magnetics Business & Technology - January/February 2021 - Tech Tips
Magnetics Business & Technology - January/February 2021 - 17
Magnetics Business & Technology - January/February 2021 - Research & Development
Magnetics Business & Technology - January/February 2021 - 19
Magnetics Business & Technology - January/February 2021 - Product News
Magnetics Business & Technology - January/February 2021 - 21
Magnetics Business & Technology - January/February 2021 - 22
Magnetics Business & Technology - January/February 2021 - 23
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Magnetics Business & Technology - January/February 2021 - 25
Magnetics Business & Technology - January/February 2021 - Industry News
Magnetics Business & Technology - January/February 2021 - 27
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Magnetics Business & Technology - January/February 2021 - 31
Magnetics Business & Technology - January/February 2021 - Events Calendar/ Advertising Index
Magnetics Business & Technology - January/February 2021 - 33
Magnetics Business & Technology - January/February 2021 - Visions
Magnetics Business & Technology - January/February 2021 - Cover3
Magnetics Business & Technology - January/February 2021 - Cover4
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