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Pressure sensor disconnect detection for a blood treatment device

  • US 20070185429A1
  • Filed: 08/01/2005
  • Published: 08/09/2007
  • Est. Priority Date: 04/13/2001
  • Status: Active Grant
First Claim
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1. A system for detecting an electrical sensor comprising:

  • a sensor signal processing circuit further comprising an input port to receive a connector, wherein the input port is connected to a resistor and the resistor is connected to a predetermined voltage level;

    a sensor circuit further comprising a connector adapted to connect to the input port of the sensor signal processing circuit, wherein the sensor circuit has a resistance substantially less than the resistor, and wherein the sensor signal processing circuit detects an unconnected sensor based on a voltage applied by the resistor to the sensor signal processing circuit.

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