Electricity: measuring and testing – Internal-combustion engine ignition system or device – Using plural tests in a conventional ignition system
Patent
1993-01-11
1994-10-25
Strecker, Gerard R.
Electricity: measuring and testing
Internal-combustion engine ignition system or device
Using plural tests in a conventional ignition system
324133, 324537, 324556, G01R 3102, G01R 19165, G01R 3128, F02P 1700
Patent
active
053592905
ABSTRACT:
A multi-test, hand-held instrument and method for testing engine sensors and ignition modules includes a housing enclosing a battery and an electrical circuit. The electrical circuit includes a first test circuit electrically interconnected with said battery for testing potentiometer-type, temperature-type and Hall effect type sensors and ignition modules, a second test circuit electrically interconnected with the battery for testing oxygen, reluctance and knock sensors, and a third test circuit for testing the battery in the instrument. A first switch selects between the first or second test circuits, while a second switch selects between a component testing mode and a battery testing mode. Electrical leads extend outwardly from the housing and are connectable to the engine component being tested. A pair of light indicators, with each light indicator including a LED and a resistor connected in parallel, provide a variable output display to allow the test instrument to be used to test various engine sensors and ignition modules, and to test these components on different types of vehicles.
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Actron Manufacturing Company
Strecker Gerard R.
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