Electromagnetic Flow Meters for Accurate Measurement of Flowing Conductive Fluids and Slurries

Magnetic Flow Meter
(Badger Meter)

In general, magnetic flow meters are sturdy, reliable devices able to withstand hazardous environments while returning precise measurements to operators of a wide variety of processes. The magnetic flowmeter has no moving parts. Electromagnetic meters will measure virtually any conductive fluid or slurry. This includes process water and wastewater. They provide low pressure drop, high accuracy, high turndown ratio, and excellent repeatability.  It is however, necessary to fill the entire cross section of the pipe in order to derive useful volumetric flow measurements.

Electromagnetic flow meters employ Faraday’s law of electromagnetic induction, whereby voltage is induced when a conductor moves through a magnetic field. The liquid acts as the conductor, with energized coils outside the flow tube creating the magnetic field. The produced voltage is directly proportional to the flow rate. Magnetic flow meter technology is not affected by temperature, pressure, or density of the subject fluid.

Electromagnetic flow meters tend to be heavy in larger sizes and may be prohibitively expensive for some purposes. However, irrespective of price and size, there are multiple reasons why magnetic flow meters are the instrument of choice for certain applications. They are resistant to corrosion and their ability to accurately measure dirty fluids makes them very suitable for wastewater measurement. As mentioned, there are no moving parts in a magnetic flow meter, keeping maintenance to a minimum. Power requirements are also low. Electromagnetic flow meters are available in a wide range of configurations, sizes, and construction materials to accommodate various process installation
requirements.

Severe service flow meter.
(TECO)

Severe application magnetic flow meters provide erosion and abrasion resistant designs, capable of withstanding a variety of highly erosive applications and corrosive slurries. These special-purpose  electromagnetic flow meters utilize liners made from specialty materials like magnesia stabilized zirconia ceramic or aluminum oxide ceramic, have electrodes made of exotic metals such as Hastalloy B/C, titanium, platinum, or tungsten carbide, and include specialized coatings.

Contact Thompson Equipment Company (TECO) with any magnetic flow meter requirement. Their decades of applying, repairing, re-manufacturing, and designing magnetic flow meters will assure a successful implementation.

Choosing the Right Industrial Flow Meter

Which Industrial Flow Meter to Choose?

Choosing the right flow measurement solution can have a major impact on operational and business performance. For this reason, companies anticipating a flow meter purchase should consult with a knowledgeable instrumentation supplier, such as Thompson Equipment Company (teco-inc.com), in the early stages of a project. The effort spent learning about basic flow measurement techniques, and available meter options, will ensure a successful application once the equipment is installed.

This white paper, courtesy of Badger Meter, does a great job outlining all the various types of flow meter technologies, including:

• Coriolis
• Differential Pressure
• Electromagnetic
• Positive Displacement
• Thermal Mass
• Turbine
• Impeller
• Variable Area
• Ultrasonic
• Vortex
• Oval Gear
• Nutating Disc

Download your own PDF copy of "Choosing the Right Flow Meter here, or view the embedded document below.

https://teco-inc.com
800-528-8997 for Immediate Service

Choosing the Right Industrial Flow Meter from Thompson Equipment Company

Metal Cone Variable Area Flowmeters

Metal Cone Variable
Area Flowmeters (ABB)

These versatile and rugged flowmeters are utilized to measuring the flow of liquids, steam and gases, particularly aggressive and opaque fluids. They are ideal for the chemical, pharmaceutical and food and beverage industries.

Overview

Metal cone variable area flowmeters are indispensable where high pressure and / or high temperature operating conditions exist. The stainless steel primaries as well as the PTFE liner primaries are proven in many applications even under hardest conditions.

Design options include:

• Flanged connections.
• Hygienic design.
• PTFE-liner for aggressive fluids.
• Steam jacket for temperature sensitive fluids.

All  metal cone variable area flowmeters are available as an analog indicator with or without alarms, as well as 4 to 20 mA electronic transmitter with HART communication, NAMUR contact outputs, and optionally with a graphical display. Metal cone variable area flowmeters can be used in all hazardous areas.

More information about metal cone variable area flowmeters can be found in the embedded document below, or you may download the ABB Variable Area Flowmeter brochure directly from this link.

Thompson Equipment Company
https://teco-inc.com
800-528-8997

ABB Rotameter / Variable Area Flowmeters from Thompson Equipment Company

Impact Weighers - Principle of Operation

Impact weighers are in-line instruments used for weighing of bulk materials. They are designed to measure the force generated by the impact of flowing material on a sensing plate. This force creates a mechanical deflection as it impacts the plate. This deflection is measured by a sensor and converted into an electrical signal. That signal is then processed by an electronic controller, which displays the flow rate and total weight.

Impact weighers are designed so that the impact plate can only move horizontally. This means that from the total impact force “Fi,” only the horizontal component “Fh” is measured. In the diagram above, “Fv” is ignored. This guarantees that changes in the weight of the sensing plate, due to material build-up or sensing plate wear, will not affect the zero or accuracy of the system.

Impact Weighers components
(Thermo Scientific Ramsey)

Advantages:

• Easy installation in difficult process environments 
• Measurement is not affected by changing the impact point on the sensing plate • Build-up on the sensing plate cannot influence the zero point
• High reliability and low maintenance 
• Mechanical damping system absorbs shocks and damps vibration
• Sensor allows some overload withoutdamage to the system
• Sensor is located in a dust-tight enclosureexternal to the process stream 
• Operates accurately in pulsating or surging flows

To learn more, download the Ramsey DE10 and DE20 Impact Weigher brochure here. For more information, contact TECO by visiting https://teco-inc.com or by calling 800-528-8997.

Thank You To Our Customers - A TECO Crawfish Boil

TECO occasionally hosts crawfish boils at our customers' facilities. We think this is a great way to say thanks and to do something a little out of the ordinary for them. It gives everyone an opportunity to get to know each other, tell a good story and maybe have a laugh or two - all around some really great food.

Thompson Equipment Company

Flow Meter Remanufacturing, Custom Flow Solutions, Full Service Repair, Calibration, and Valve Automation Center. http://www.teco-inc.com | 800-528-8997

New Smart Valve Sensor Provides Preventive Maintenance Diagnostics on Quarter-Turn Valves

The ifm MVQ101 Smart
Valve Monitor

Good news for valve automation companies. ifm’s new smart valve sensor, the MVQ101, provides continuous position feedback and preventive maintenance diagnostics on quarter-turn valves. The sensor features built-in functions that can identify different wear conditions via IO-Link, ifm’s digital communication interface. For example, the sensor can indicate a change in the valve’s operation, which can be a warning that deposits are interfering with the valve’s ability to close or that the seal is wearing.

https://teco-inc.com
800-528-8997

Remanufactured Process Instruments Save You Money, Resources and Time

TECO is the world's largest remanufacturer of magnetic flow meters, instrumentation and valves. Their secret is the combination of experience, trained technicians and facilities. TECO can remanufacture virtually any process instrument or valve. Every remanufactured item meets or exceeds the original OEM specifications and performance standards.

Send TECO your worn-out flowmeters, instruments and valves and get them back as good as new (or better)!

Thompson Equipment Company
https://teco-inc.com
800-528-8997