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Q.
Where can I use Electromagnetic Flowmeter?
A: The Electromagnetic Flowmeter can be used
on any liquid service where the liquid to be measured
has electrical conductivity above the minimum threshold
level of 10mS/cm.
This covers almost all liquids such acids, alkalis,
ores, dyes, inorganic liquids and process fluids, edible
oils, paper pulp, white and black liquors, milk, fruit
juice and pulps etc.
Hydrocarbons such as petrochemicals, alcohols, etc.
are the only exceptions as they have almost negligible
electrical conductivity. |
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Q.
What is electrical conductivity and its significance?
A. The electrical conductivity of the liquid
is a property which describes its capacity to allow
the flow of electrical current through it.
The Significance:
The flowmeter is based upon Faraday’s Law of electromagnetic
induction, for which a ‘conductor’ has to
move in a magnetic field to generate electric voltage
in it. The conductivity of the liquid in question lets
one know whether or not it is a conductor and whether
the flow meter would work on the subject liquid.
The Mikamachi magnetic
flow meter works satisfactorily for liquids with
electrical conductivity above 10mS/cm. |
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Q. Does a change
in conductivity affect the performance of the flowmeter
or a change in the accuracy?
A. No. The change in conductivity
does not affect the performance of the flowmeter as
long as it is above the minimum required threshold level.
The flowmeter output depends only upon the velocity
of fluid to be measured and it does not have any parameter
in its equation of function except the velocity of liquid. |
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Q. What is so special
about Electromagnetic Flowmeter that makes it capable
of handling such a wide range of fluids?
A. The electromagnetic flowmeter
by design has no moving parts. This gives the advantage
of long life, no pressure loss due to obstruction to the
flow and almost nil chance of choking. This makes it the
only choice for liquids with solid contents such as sewage
sludge, ores, paper pulp, molasses, etc.
The wetted parts, namely liner and electrode, have a choice
of chemically-compatible materials of construction. They
can be selected from natural rubber to PTFE/CERAMIC/Glass
for liner and from SS316 to Platinum for electrodes. The
flowmeter is therefore useful for services such as concentrated
acids, alkalis, paper pulp, molasses, ores, sludge, sewage
effluent, etc. |
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Q. How do I select
a suitable Electromagnetic flow meter?
A. Mikamachi has divided all
the possible applications in four major categories viz.
Water & Waste Water (MIKAWATER99) – for raw
and treated water and for effluents, manures and sewage,
sludge etc., services for control or billing.
B.Process (MMF709) – for process liquids like
acids, alkalis, pulp, ores, solutions, etc.
C. Sanitary (Mikasan90) – for liquids of food
grade applications like milk, fruit juice, pulp, etc.
D.Insertion (MIF709) – for bulk water services
in large pipelines.
A suitable type from the above shall be selected and
the details of the flowmeter (such as size and compatible
liner and electrode) can be selected by referring to
the links from the product pages.
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Q. Why Mikamachi
as preferred brand of Electromagnetic Flowmeter?
A. Mikamachi Inc. has been
in the field of electromagnetic flow measurement for
the past twelve years and has developed, manufactured,
and installed thousands of Electromagnetic flow meters
on a wide range of services to great customer satisfaction.
Some services include:
Concentrated acids (pH 2), strong alkalis (pH 13.5),
hardwood paper pulp, molasses, effluents, cow manure,
fruit pulp, milk and many other process fluids.
It also has a distinction of being the manufacturer
of the world’s largest flow meter of size 120”NB(3030mm).
Mikamachi has hundreds of installations on water services
(both raw and treated) across the length and breadth
of India including in Gujarat’s prestigious Narmada
Canal-based drinking water projects and also regional
water supply schemes in Maharashtra.
Finally, being dedicated to the technology of electromagnetic
flow meters, we have the specific expertise in the field
to keep us ahead in technology and product design. |
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