Lincoln Electric PF42 Operator's Manual page 17

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Show Test Modes? – uses for calibration and tests. To use the
Test Modes:

On the Right display is shown "LOAD".

Use the Right Button to confirm the selection.

On the Right display is shown "DONE"
Note: After the device has been restarted the P099 is "LOAD".
View Software Version Info – used for viewing the software
versions for user interface.
To read the software version:

In Advanced Menu select P103.

Confirm the selection, push the right button.

The blinking "UI" inscription appears on the left display and
on the right the software version.
Note: P103 is a diagnostic parameter, to read only.
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