Testing device for flowmeter

Details Testing device for flowmeter Testing device for flowmeter

1983-02-07

1985-05-21

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01F 2500

Patent

active

045178232

ABSTRACT:
A testing device for a flowmeter arranged in a pipe, has a bypass conduit connected with the pipe in which the flowmeter is arranged, a gauge container arranged in said bypass conduit and selectively connectable in series with the pipe, an element for selectively connecting said gauge container in series with the pipe, a measuring piston displaceable under the action of a fluid which flows into said gauge container over a measuring section having a beginning and an end, start and stop switches arranged at the beginning and at the end of the measuring section, respectively, and operative for starting and stopping of addition of electric impulses from the flowmeter during displacement of said measuring piston, a device for comparing the impulses being added with a gauge volume of the measuring section, and a measuring cylinder located in the interior of the gauge container, the measuring cylinder forming the measuring section and carrying the start and stop switches and the measuring piston, said gauge container and said measuring cylinder forming therebetween a pressure equalizing chamber.

REFERENCES:
patent: 3273375 (1956-09-01), Howe
patent: 3492856 (1970-03-01), Francisco
patent: 4372147 (1983-02-01), Waugh

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