Flow meter

Electromagnetic flowmeters should be maintained when not in use, as the meter will become ineffective if not used for a long period of time. We know that instruments and meters have a service life, and instruments will wear out during use. Reasonable maintenance can not only extend the service life of instruments, but also improve …

Maintenance measures for electromagnetic flowmeters under shutdown conditions Read More »

Instrument failure is a problem we often encounter in our work, so what are some good ways to judge the failure and find out the problem? We have compiled 10 methods for analyzing and judging industrial instrument faults, and summarized many years of instrument maintenance experience. I hope it will be helpful to you. 1. …

10 commonly used methods to diagnose industrial instrument faults. How many do you know? Read More »

The flow signal of the electromagnetic flowmeter is based on the measured conductive liquid as the reference potential. The conductive liquid in the entire measurement pipe is regarded as a conductor with zero resistance. The two electrodes form a differential signal voltage to the conductive liquid. Therefore, if the signal contact point is unreliable, the …

Grounding and liquid contact of electromagnetic flowmeter Read More »

1. Empathy – Do the right thing “The key question is to find the key to the problem.” If you want to find opportunities for process control improvement, you need to understand and care about the operators! Not only have enough respect for their operations, but also find ways to reduce their operational interference. High-frequency …

How to improve the automation of installations? Read More »

1. It is forbidden to mix signal cables and power supply cables in one multi-core cable! 2. It is strictly forbidden to stick to oil when maintaining oxygen pipeline instrument equipment. Oil-free transmitters and pressure gauges are strictly forbidden to be mixed with ordinary gauges. 3. When repairing and removing wires from the instrument, you …

Routine maintenance of various types of instruments Read More »

The lubrication cycle should be determined according to the specific situation and mainly includes the following parts: 1. Pneumatic cam deflection valves, pneumatic ball valves, pneumatic butterfly valves, and rotating parts of electric actuators; 2. Protection box, door shaft of the insulation box, and fastening bolts of the junction box; 3. Bolts and nuts for …

Instruments are regularly lubricated and protected against corrosion Read More »

1. When opening holes for instruments, avoid opening holes in formed pipes. 2. Pay attention to the length of the straight pipe section before and after the flow meter. 3. If there are electromagnetic and mass flow meters with grounding requirements, they should be grounded according to the instructions. 4. When welding process pipelines, the …

Precautions during instrument installation Read More »

1. Before installing the instrument, the process pipeline should be purged to prevent ferromagnetic substances retained in the pipeline from adhering to the instrument, affecting the performance of the instrument or even damaging the instrument. If unavoidable, a magnetic filter should be installed at the inlet of the instrument. The instrument itself does not participate …

Things to note before installing the instrument Read More »

In the industrial field, electromagnetic flowmeters are widely used, such as flow measurement of circulating water pipelines, fresh water pipelines, and salty sewage pipelines in refinery process units; flow measurement of medium pipelines such as concentrated sulfuric acid, dilute sulfuric acid, and intermediate acids in alkylation units. Flow measurement of pipelines such as alkali liquid …

Is the correct grounding of the electromagnetic flowmeter necessary to be set separately? Read More »

MAIN CONTENTS This company standards set rules for the mass flow meter’s product classification, technical requirements, testing methods, inspection rules and marks, packing, transportation and storage. The standards are applicable to the mass flow meter measuring liquid in the pipe with pressure. NORMATIVE REFERENCES Some basic rules and terms of the following documents are recommended …

MASS FLOW METER VERIFICATION REGULATION—Zero Instrument Standards Read More »