KROHNE BW 25 Liquid Level Indicator

Level measurement of liquids, even at high pressures using the displacement principle.

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Manufactured

By KROHNE

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Product Manual Product Specs

Features

Modular assembly, replacement or retrofit w/o interruption of the process
Measuring range: 0.3 to 6m (1 to 20ft)
Accuracy: ±1.5% of full scale range
Temp range: 76 to 752°F (60 to 400°C)
Pressure up to 400 bar (5800 psig)
Current output 4-20mA and/or max 2 limit switches
Interface detection possible
Pressure-tight separation of measuring and display parts

The KROHNE BW 25 Liquid Level Indicator operates on the displacement principle. The length of the displacement rod corresponds to the measuring range.

A displacement body suspended on a measuring spring is immersed in the liquid and is subjected to an upthrust based on Archimedes' principle, this being proportional to the mass of the liquid displaced. Every change in the weight of the rod corresponds to a certain change in the length of the spring, and is therefore an indication of the liquid level. Extension of the spring is transmitted by magnetic coupling from the measuring zone to an indicator. This transmission method permits pressure-tight separation of the measuring spring system and the scale.