Safety Circuit

The Operator Control Console includes one safety circuit component.

• GFCI (Ground Fault Circuit Interrupter)

GFCI (Ground Fault Circuit Interrupter)

The GFCI protects the operator from shock from the AC circuit of the power source.

The GFCI is inline with the power cord. When initially connected to a power source, it is in the Off state. You must press the Reset Button to enable it. When enabled, the green LED will be illuminated.

LIM (Line Insulation Monitor)

The LIM protects the operator and persons in the water nearby from shock from the DC circuit of the tether. While the GFCI switches are part of the GFCI component and must be turned on to operate the Operator Control Console, the LIM is automatically enabled when the system is turned on. The LIM operates on a principle similar to the GFCI and monitors the quality of the insulation of the conductors in the tether. If the resistance between the conductors drops below the safe threshold, the LIM will trip.

See the Operator Control Console Switches and Connections section for more information about the GFCI's location, and see the Pre-Dive Preparations section of the Quick Start Instructions for information about testing this component.