Patent ID: 9128137
Filing Date: 2015-09-08
Classification: F04B,G01R

Abstract:
1. A diagnostic device comprising: two rigid control leads; two rigid load leads; an internal relay mechanism configured to selectively conduct electricity between the two load leads based on whether an electrical current is applied across the two control leads; a sensor configured to provide measurements of voltage or current sensed at the load leads, a data memory, a processor configured to input the measurements from the sensor and store the measurements in the data memory, a computer interface configured to send the stored measurements to a computer, and a housing that houses the internal relay, the sensor, the memory, the processor and the computer interface; wherein the control leads and the load leads have the same pin configuration as an existing relay that lacks a sensor, lacks a data memory and lacks a computer interface, such that the diagnostic device is configured to be plugged into a relay receptacle in place of the existing relay.