Installation of Electromagnetic Flowmeters

In this episode, we will learn about the installation of electromagnetic flowmeters. An electromagnetic flowmeter consists of a sensor and a converter, available in either integrated or split configurations. During installation, the sensor must be kept away from strong magnetic fields, with a spacing of at least 5 times the pipe diameter. It can be installed horizontally or vertically (with vertical installation, fluid should flow upward to avoid sediment buildup). Avoid locations with deposits, air bubbles, or non-full pipe conditions. Installation at the highest point or discharge outlets should also be avoided.

Straight pipe length requirements:

• For bends: 5DN upstream and 3DN downstream.

• For two-dimensional elbows: 5DN.

• For three-dimensional elbows or tapered pipes: 10DN.

Install the flowmeter downstream of pumps and upstream of valves. Proper grounding is essential-metal pipes provide natural grounding, while non-metal pipes require grounding rings. Split-type converters are wall-mounted, whereas integrated types are directly mounted on the sensor. Effective grounding minimizes interference and ensures measurement accuracy.

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