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Installation precautions of explosion-proof electromagnetic flow meter

Precautions when installing explosion-proof electromagnetic flow meters for mining:

1.       Axis of the non-measuring electrode must be approximately horizontal;

2.       Measuring pipe must be completely filled with liquid ;

3.       There must be at least 5*D(D is the inside diameter of the flowmeter) straight pipe section in front of the flow meter, and at least 3*D(is the inside diameter of the flow meter) length straight pipe section at the rear;

4.       The direction of fluid flow is the same as the arrow direction of the flow meter;

5.       A vacuum in the pipeline will damage the lining of the flow meter ,so special attention should be paid;

6.       There should be no strong electromagnetic field near the flow meter;

7.       There should be ample space near the flow meter for installation and maintenance

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Maintenance knowledge of electromagnetic flowmeter

The electromagnetic flowmeter converter has a self-diagnostic function. In addition to power and hardware circuit failures,faults that occur in general applications can be correctly given.

Alarm information

Electromagnetic flowmeters are common faults

Maintenance and maintenance mainly have the following aspects:

1.       Excitation alarm

When this phenomenon occurs, check whether the excitation wiring x and y are open, check whether the resistance value of the excitation coil is normal ,and the determine whether the converter has malfunction .

2.       The measured flow is not accurate

When this happens ,it should be checked whether the fluid is filled with the sensor measuring tube ,the signal line connection is normal ,check the sensor coefficient, sensor zero whether the point is set normally by the sensor label or the factory checklist.

3.       Meter no display

When this fault occurs, first check whether the power supply is turned on ,check whether the power supply fuse is intact ,and check whether the power supply voltage meets the requirements, such as if all the above are normal ,the converter should be sent to the manufacturer for repair.

4.       Empty tube alarm

When this problem occurs ,measure whether the fluid fills the sensor measuring tube and check that the signal wiring is correct. Check if the flow sensor electrode is normal .use a wire to short-circuit the converter signal input terminals a, b and c .at this time ,if the “empty pipe alarm “prompts to cancel ,the converter is normal.

There may be a low conductivity of the measured fluid or an empty tube threshold and an empty tube range setting error.

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This electromagnetic flowmeter is mainly used to measure the volume flow in the conductive liquid and slurry in the closed pipe .it includes highly corrosive liquids such as acids, bases , and salts. This product is widely used in petroleum ,chemical ,metallurgy ,textile, food ,pharmaceutical, paper and other industries as well as environmental protection ,municipal management ,water conservancy construction and other fields.

The electromagnetic flowmeter is classified according to the converter and sensor assembly method ,and has split type and an integral type .

The split type electromagnetic flow meter is the most common form of electromagnetic flow meter .the sensor is connected to the pipeline ,and the converter is installed in the instrument room or near the sensor .that is easily accessible by people ,ranging from tens to hundreds of meters

In order to make the large-diameter electromagnetic flowmeter work stably, it is very important to install it correctly. Try to avoid ferromagnetic objects and specific equipment with strong electromagnetic field (such as large motor, large transformer, etc.), so as to avoid the magnetic field affecting the working magnetic field and flow information of the sensor; try to install them in dry and ventilated places, not in wet and water prone places; try to avoid the sun and rain, avoid the environment temperature higher than 45 ℃ and relative humidity greater than 95%; select and facilitate maintenance The large-diameter electromagnetic flowmeter shall be installed at the back end of the water pump and never at the suction side; the valve shall be installed at the downstream side of the flowmeter

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Battery powered electromagnetic flow meter is mainly designed for the water industry .it meets the urban water supply to ensure accurate calculation .it is widely used in urban water supply ,urban heating ,sewage treatment and water conservancy projects.

It is not affected by water quality, no entanglement ,blockage, almost no pressure loss and can work continuously for a long-time .

KFKC battery powered electromagnetic flow meter is more suitable for large flow heating.

On the basis of accurate measurement ,the battery-powered electromagnetic flowmeters integrate the instrumentation and control parts to realize the automatic cut-off and connection operation of the pipeline. The intelligent electric regulating valve moves slowly when it is opened ,avoiding the excessively fast liquid flow rate ,which will cause damage to the instrument itself and prevent dangerous accidents.

KFKC battery powered electromagnetic flow meters are with good stability ,high accuracy and strong anti-interference ability .it realizes automatic bi-directonal measurement, display instantaneous flow ,forward and reverse total flow. Meanwhile ,it has powerful storage and wireless remote transmission functions.

When installing a battery powered magnetic flowmeter ,need to avoid the location of strong electromagnetic field, for example large motors, large transformers ,etc . during installation ,should be no strong vibration which is convenient for installation and maintenance.

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every major city around the globe has a district energy system that provides thermals to its buildings. in these underground infrastructures,thermal energy is provided to multiple buildings from a central energy plant or plants.24 hours a day ,7 days a week steam or hot water produced at the district energy plants is transferred to buildings ,universities,office buildings ,etc .for heating.

in district energy application,multiparameter vortex flowmeters for measuring steam flow allow you to sub-allocate steam usage and report it to a central plant for increased energy efficiency. additionally,vortex meters through accurate flow monitoring improves porcess quality,optimize accountability processes and reduces downtime.

steam flow energy generated from boiler is moved dowmstream in the steam pipeline then distributed to city buildings. facility/district engineers need to measure the steam output and distribution of the steam precisely. however ,one of the key challenges district energy managers have is actully making the steam flow measurement itself, because it is rare that you can turn off the steam. that is why a multivariable mass vortex flow meter is a good option for this application.

why vortex mass flow measurement ?

vortex mass flow measurement receive a true mass flow measurement in lbs/hr, with that data ,boiler efficiency, heat efficient, etc. all can be calculated correctly.

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Every company greatest success,is always from customers' success.if our customers can't grow,we can't grow. let's in it together! our aim is to set standards in all that we do #electromagnetic flowmeter #process control instruments manufacturer# flow measuring#vortex flowmeter #turbine flowmeter#throttling device series

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we consider itself not only as a manufacturer of measuring devices but more comprehensively as a customer-driven solutions and service. our customers are the focus of all our efforts. our aim is to set standards in all that we do .our main products cover electromagnetic flowmeter ,turbine flow meter ,vortex flowmeter ,throttling device series ,welcome your inquiry from all the world.

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Ultrasonic water meter widely used for agriculture irrigation system

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Ultrasonic water meter widely used for agriculture irrigation system.

We are China professional flow meter factory,welcome your inquiry from all the world .

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Email:[email protected]

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multistage orifice plate used for air ,gas,steam.

we are China professional flow meter factory .welcome your inquiry from all the world.

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DN300 Electromagnetic flow meter,

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www.kfkc-instrument.com. we are China professional instrument manufacture

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KFKC INSTRUMENT CO.,LTD ——a high-tech enterprise focusing on information system integrated service ,water conservancy engineering automatic control ,instruments research and manufacture .our company is committed on providing integrated water plans to meet different customers,different application fields . From R&D ,production to installation,debug. Exactly achieve one-stop ,customized service

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Professional smart agriculture irrigation system

More details ,pls contact with us

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Smart agriculture irrigation system

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DN1000 split type electromagnetic flow meter

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