Depending on the regulations, a steam boiler must be equipped with one or more direct and/ or indirect level gauges. With direct level gauges, the liquid level can be seen directly through a glass or mica window. The use of a transparent level gauge with background illumination gives operating staff a clear separation between the water and steam zones even when viewed at a relatively long distance. Bicolour level gauges (black and white or green and red) are very suitable for camera transmission to the measuring station because of their special design and the intense LED illumination. With indirect level gauges, the water level is transmitted by a magnetic system to a display panel on the outside of a pipe.
By IGEMA GmbH based in Münster, GERMANY.
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