Water level measurement device using load cell

摘要

An assembly for measuring the water level of a food industry machine has a water tank holding water to be heated, a load cell installed underneath the water tank so that a weight of the water tank holding the water impinges on a strain gauge of the load cell, a controller for receiving an electric signal from the load cell proportionate to a weight of the water tank plus the water in the water tank and converting the weight to a water level of the water tank based on a pre-determined formula and a display structure for continuously displaying a water level of the water in the water tank. The water level measurement device stays dry and free of scale deposits.

主权项

1. An assembly for measuring the water level of a coffee-making machine, comprising:
a water tank holding stationary water to be heated; a load cell installed underneath the water tank so that a weight of the water tank holding the water impinges on a strain gauge of the load cell; and one or more controllers for receiving an electric signal from the load cell proportionate to a weight of the water tank plus the water in the water tank and converting the signal to a water level of the water tank based on a pre-determined formula, a short wave heating element encased in a heat conducting sleeve below a water fill line, the short wave heating element kept dry and not in contact with water inside the sleeve or water inside the water tank.