Zone check test system
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United States of America Patent
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Oct 8, 2002
Grant Date -
N/A
app pub date -
Nov 12, 1999
filing date -
Nov 12, 1999
priority date (Note) -
Expired
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Abstract
A fluid flow detector test system includes a flow conduit and a pump for providing a test fluid flow at the detector. A test unit includes a programmed processor coupled to the pump by a drive circuit such as a solid state switch or a relay. The detector's output is coupled to an input port of the processor. To initiate a test, executable instructions, coupled to the processor, enable the processor to energize the pump, creating a test fluid flow. The processor senses the detector's output to evaluate its test performance. An alarm system having a plurality of detectors can include a plurality of such test systems, one coupled to each detector.
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