Continuous Level Monitoring of Pudding Fillers Replacing Capacitance Probes
We supplied a LN Potentiometric level sensor to the plant for their evaluation. The LN emits an AC signal to measure the potential between the probe and a reference ground, the inner wall of the vessel in most cases. This potential measurement is converted into a linear level output. The potential with a full tank versus a probe covered with just residual product is vastly different and hence provides consistent level information. For the Hamba fillers, this meant that the pudding coating the LN probe was ignored and a true consistent level measurement was achieved. Pumps no longer ran dry and the filling levels were more consistent. These successes lead to subsequent orders to retrofit all their fillers.