Inhibitor funtion check method and apparatus
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United States of America Patent
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N/A
Issued Date -
Oct 2, 2003
app pub date -
May 16, 2003
filing date -
Jun 1, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The method detects the presence of an effective corrosion inhibitor in a central heating system liquid. A clean steel electrode and a non-steel electrode are immersed in the system liquid. The galvanic current flowing between the electrodes is measured after a delay, and the measured current is compared with a reference. A portable apparatus for carrying out the method comprises a sample container (10) and a measurement instrument (12) which includes a steel electrode (14), a non-steel electrode (16), circuitry (19) for detecting galvanic current flowing between the electrodes when immersed in a test liquid in the container, and generating a measurement signal indicative of the measured galvanic current. The method and apparatus provide a quick effective method of checking correct inhibitor function.
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