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Method of testing for leakage in a solution pumping system

  • US 5,336,053 A
  • Filed: 01/29/1993
  • Issued: 08/09/1994
  • Est. Priority Date: 01/29/1993
  • Status: Expired due to Term
First Claim
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1. A method of testing a pumping system including pump means which creates a positive liquid pressure in the system during a pumping stroke, said method comprising the steps of:

  • operating said pump means to create a positive liquid pressure within the pumping system;

    measuring the pressure of liquid in the system to obtain a first liquid pressure P1 ;

    waiting a predetermined time interval after measurement of pressure P1 ;

    measuring the pressure of liquid in the system to obtain a second liquid pressure P2 ;

    comparing the pressure P1 to the pressure P2 to ascertain any drop in pressure in the system; and

    providing a signal indicating leakage in the system when the difference between P1 and P2 exceeds a predetermined value.

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