To be able to display the wort volume in a brewing kettle in liters on the operating terminal, the wort level is measured. A hydrostatic level sensor cannot be installed in the brew kettle for this purpose because the kettle is equipped with an electric heater at its base. Thus, a sensor solution with a rod length of approx. 800...900 mm is required that can be installed into the brew kettle from above. In the past, float switches were used, whose output signal was switched via reed contacts. In addition to the switch’s very low measurement resolution, the contacts were subject to wear, resulting in downtime and the associated costs for maintenance and service. Moreover, float switches are difficult and time-consuming to clean, requiring large quantities of cleaning agent.
The NSL-M level sensor uses the universal potentiometric measuring principle to continuously measures filling levels, outputting an analog 4 ...20 m A signal. Compact in design and featuring internal electronics that are tolerant of high process temperatures, the level sensor can even be installed from above in hot applications.
NSL-M
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