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Automatic delivery/drain detection using a level monitoring system

  • US 8,378,833 B2
  • Filed: 07/03/2007
  • Issued: 02/19/2013
  • Est. Priority Date: 08/10/2004
  • Status: Active Grant
First Claim
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1. A system for monitoring a level of product in a tank to detect at least one of a delivery and a drain operation, the system comprising:

  • a monitor operably coupled to the tank, the monitor adapted to detect the level of product in the tank at a first rate and at a second rate; and

    a data center in communication with the monitor, the data center adapted to receive a user inputtable threshold level of change; and

    wherein the monitor detects the level of product in the tank at the first rate until the threshold level of change is detected whereupon the monitor detects the level of product in the tank at the second rate; and

    wherein the data center generates an alarm signal when the threshold level of change is detected to indicate that at least one of the delivery and the drain has occurred.

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