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Test water meter with digital display

  • US 4,945,754 A
  • Filed: 07/18/1989
  • Issued: 08/07/1990
  • Est. Priority Date: 07/18/1989
  • Status: Expired due to Fees
First Claim
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1. A portable test water meter for testing meters used in water lines, the test water meter comprising:

  • a single inlet for admitting water which has been metered by a meter under test;

    first and second outlet means connected through the test water meter to the single inlet;

    first valve means disposed between the single inlet and first outlet means for allowing water to flow through the first outlet means when the first valve means is open;

    a first turbine meter means disposed downstream of the inlet means and upstream of the first valve means for measuring flow through the first turbine meter when the first valve means is open;

    first transmitter means connected to said first turbine meter means for converting information indicative of the measurements made by the first turbine meter means to electrical signals and for transmitting those signals;

    first digital display means connected to the first transmitter means for displaying the measurements made by the first turbine meter means;

    a second valve means disposed between the single inlet and the second outlet means in parallel with the first valve means;

    second turbine meter means disposed upstream of the second valve means, the second turbine meter means measuring flow therethrough;

    second transmitting means connected to the second meter means for converting information indicative of the measurements made by the second turbine meter means to electrical signals and for transmitting those signals;

    second digital display means for displaying measurements made by the second turbine meter means to measure flow at a lower rate through the meter under test;

    whereby flow through the test water meter may be compared to readings on the meter under test to determine the accuracy thereof, the test being conducted by closing the second valve while opening the first valve if the meter under test is a relatively large volume meter and being conducted by closing the first valve and opening the second valve if the meter is a relatively small volume meter.

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