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Fluid condition monitoring system

  • US 4,064,455 A
  • Filed: 11/18/1976
  • Issued: 12/20/1977
  • Est. Priority Date: 11/18/1976
  • Status: Expired due to Term
First Claim
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1. A system for monitoring the condition of a plurality of fluids as determined from measured electrical characteristics of samples of said fluids successively applied to a sensor, comprising:

  • a remote test terminal having a remote controller and associated remote memory, a data entry means and a test module, said test module including said sensor and a coupled electrical circuit means to remotely generate a test signal representative of said electrical characteristic of said samples.wherein said remote controller includes means responsive to a user operation at said data entry means to generate and store associated sample identification and use signals in said remote memory for each sample applied to said sensor, said sample identification signal being representative of the identity of the fluid for said sample under test, and said associated use signal being representative of the period of use of said sample, andwherein said remote controller further includes means responsive to said user operation to control and test module to generate said test signal for said sample, and means to store said test signal in said remote memory in association with said stored sample identification and use signals, anda test signal monitoring means for automatically identifying fluids for which said test signals indicate a predetermined condition, thereby providing evaluation of said remotely generated test signals representative of the condition of said fluids.

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