What should be verified when using a multi-meter to test an umbilical?

When using a multi-meter to test an umbilical, verifying the continuity of each wire is crucial. Continuity testing involves checking each wire within the umbilical to ensure there are no breaks or faults in the electrical connections. This is essential for maintaining the integrity of the diving system, as any break in continuity can lead to malfunction of crucial systems such as communication, lighting, or other electronic devices that rely on power supplied through the umbilical.

By confirming that each wire has good continuity, divers and technicians can ensure that the electrical supply is intact, which is vital for safety and operational efficiency while diving. If a wire is found to be discontinuous, it indicates a potential issue that needs immediate attention to prevent operational failures during dives.