Gullco PK-500-LG-x - Manual (Page 48)

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“ELECTRODE SENSE ” (pink wire): terminate this wire to welding power source electrode
sense connection. May not be necessary / available on some makes and models
of power sources.
Used by the welding power source to measure the actual welding voltage.
“CABLE SHIELD ” (supplied from the factory covered in a light green heat shrink): Under
normal circumstances is not required to be terminated. But in the event that there is the
presence of high frequency interference or other RFI causing the PipeKAT
®
to malfunction then
it is advised to terminate this wire to the chassis / frame ground of the welding power source.
IMPORTANT: If any of the above wires are not used for interfacing with the welding power
source then they must be properly terminated and electrically isolated to prevent electrical
shorting.