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How to debug the electromagnetic flowmeter

Date:2019-11-20 source:

Electromagnetic flowmeter how race gather rate to adjust, with general instrument same, after installation, line finish, announce fund allocation before working, ought to inspect below installation, line whether appropriate, whether can all work normally on the instrument.

Emphasize to point out as far as possible in this, to the company that a few lack to use work experience, instrument installation operates worker to ought to read the professional description that concerns in relevant installation operation manual seriously article, to the difficulty that often encounters on operation for the first time, want to be good at analyzing ponder.The vortex street flowmeter has the characteristics of excellent power supply circuit, low output power, wide detection range, simple structure, small friction hazard, rugged and durable, wide application range, long service life, stable operation and beneficial to installation and adjustment.It is applicable to flow measurement of chemical fluid dynamics in industrial production pipelines, such as gas, liquid, steam and other chemical substances.The whole set has been adjusted exactly in the flow rate of the manufacturer compared with the machine and equipment. If the control board and converter service facility number and meter index are examined, the fund can be allocated and operated without any adjustment.Mess up the original set of instruments.

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How does the electromagnetic flowmeter adjust the reactivity

Before the instrument capital allocation operation, the control board shall be as full as possible to accurately measure the chemical substances, and the dirty zero adjustment shall be made after the electricity is switched on.After the allocation of funds, zero point inspection should also be conducted according to the chemical substances and the application specifications. In particular, more checks should be conducted at the early stage of operation to obtain work experience and establish the normal inspection cycle.

For regulated customers, several basic parameters of the control panel should be accurately measured and recorded before the meter fund allocation operation.

(1) electrode grounding resistance (control board (air tube, two rheostat on the instrument shell or ground ground resistance);

(2) excitation regulator magnetic coil grounding resistance (excitation regulator magnetic coil on the instrument shell or ground grounding resistance);

(3) excitation regulator magnetic coil cold resistance (that is, the excitation regulator magnetic coil enamelled wire copper resistance);

The contact resistance control plate of the electrode is filled with liquid. The resistance between the electrode and the grounding system is accurately measured. The contact resistance of the two electrodes should be roughly the same.Sewage flowmeter can not only accurately measure the capacity flow of general conductivity liquid, but also accurately measure the capacity flow of strongly corrosive liquid such as oxidizer and homogeneous solid liquid suspended liquid such as sludge, pulp and wood pulp.The flowmeter meter is used in petroleum, industry, iron and steel industry, light industry, papermaking industry, ecological environment protection, food industry and other industrial sectors as well as garden management, water conservancy and hydropower projects, river transportation and other manufacturing industries.

This kind of data is very helpful for finding the direct cause of the abnormality in the control board after the operation.Electromagnetic flowmeter is a new type of flowmeter developed rapidly with the development trend of electronic technology in 50~60 period.Electromagnetic flowmeter is a magnetic induction instrument manufactured according to Faraday electromagnetic induction law to accurately measure the capacity and flow rate of conductive medium in the tube.For example, a change in the contact resistance of two electrodes indicates that the electrode will probably be smeared;The contact resistance is enlarged, the stain will be dielectric strength residue;The contact resistance decreases and the smudge is the residual of the error between the two lines.The contact resistance of the two electrodes is different, indicating the level of air pollution of the two electrodes is different.The reduction of the ground resistance of the electrodes and the excitation regulator coil indicates the moisture level of the control board.When the grounding resistance is reduced to a certain level, it will harm the normal operation of the instrument.The cold resistance of excitation regulator coil is the basic parameter to ensure the normal of excitation regulator coil.

At present, Shanghai porcelain city steam flowmeter has been sold to 100 countries, into the manufacturing industry more than 100.In addition, the micro-steam flowmeter developed by the product has also been certified for measurement.Fill in the blank page of the fine steam flowmeter in China, additionally get rid of the monopoly of the overseas company.


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