What is a sign that continuity does not exist when testing leads?

In testing for continuity in circuits, an infinity reading serves as a clear indicator that continuity does not exist. This is because an infinity reading implies that there is an open circuit, meaning that there is no conductive path for current to flow between the two test leads. When there is continuity, you would typically expect to see a low resistance value or, ideally, a zero reading, indicating that the circuit is complete.

In practical terms, when continuity testing, the goal is to confirm that electrical connections are intact and capable of conducting electricity. Seeing an infinity reading signals that there may be a break or fault in the wiring or connections being tested, which is critical for ensuring the safety and functionality of the pipeline system.

Other options such as low voltage readings, audible alerts, or high resistance readings can indicate issues, but they do not definitively signal a lack of continuity like an infinity reading does.