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The excitation frequency of most electromagnetic flowmeters is determined by the manufacturer according to the selection and design of the meter caliber, measuring medium, and flow conditions. For example, small-diameter instruments use higher frequencies, large diameters use lower frequencies; single-phase liquids use lower frequencies, and slurries use higher frequencies. If you choose this type of […]

This is in line with the requirements of IP67 and IP68 in the standard of the enclosure protection level specified by the International Electrotechnical Commission IEC standard IEC529-76 and the equivalent national standard GB 4208-93. Immersion sensors are generally used for large-caliber flow meters for measuring water or sewage. The installation pipes of these flow

In the application areas of the food, medicine, and brewing industries, from the perspective of hygiene, high-temperature steam needs to be regularly used to clean and disinfect the process pipelines and instruments during the process, and the pipeline joints including flowmeter sensors must not have Residual medium to prevent bacteria from multiplying. Therefore, IDF (International

When measuring sewage, slurry, and other media, the inner wall of the pipe and the surface of the electrode are prone to fouling and adhesions. When the conductivity of the fouling substance is different from that of the measured medium, measurement errors will be brought about. The adhesion of sludge and oil to the electrode

The basic method to achieve reliable and stable grounding of the grounding ring is to select corrosion-resistant materials that are the same as or similar to the electrode material as the material of the grounding ring, and they directly form a similar or roughly equal polarization potential with the liquid. In this way, the common-mode

One of the basic conditions for the operation of an electromagnetic flowmeter is that the normal current in the inner wall of the measuring tube is zero except for the electrode. To meet this condition, the simplest method is to line the inner wall and flange the end face of the conductive metal measuring tube

1. For flow sensors without bypass pipelines, first open the upstream valve of the flowmeter sensor with a medium opening, and then slowly open the downstream valve. Run for a period of time at a small flow rate (such as 10 minutes), and then fully open the upstream valve, and then open the downstream valve

1. Suitable fluid for measurement. The sensor is most suitable for measuring clean (or basically clean) low-viscosity single-phase fluid (gas or liquid), such as water, light oil, petroleum solvent, acid, alkali, liquid oxygen, liquid nitrogen, liquid hydrogen and air, oxygen, etc. If measuring high-viscosity liquids, the accuracy of the measurement will be reduced due to

Electrode electrode-signal out The electrode is the part where the electromagnetic flowmeter picks up the flow signal. In the measurement process, only it is in contact with the grounding ring (or called the wetted ring), the grounding electrode, and the measured medium. Therefore, in order to adapt to different medium measurement conditions, such as the