Continuity testing, performed with a digital multimeter, determines if an electrical path is complete. It verifies that current can flow from one point to another. The test typically involves placing the multimeter probes on two points in a circuit. If the device emits an audible tone or displays a near-zero resistance reading, a complete electrical path exists. Conversely, the absence of a tone or a high resistance reading indicates a break or open circuit.
Verifying the integrity of electrical connections is crucial in various applications. Its benefits include troubleshooting faulty wiring, identifying broken wires, and confirming the operation of switches and fuses. Historically, simple continuity testers were used. However, digital multimeters provide a more accurate and versatile method for performing this function.
