Question about Mastech "Restricted Current Protection Mode"

The Mastech 1803C/1803 power supply states:

"For restrictec current protection mode switch on the power supply
ON/OFF switch 7, adjust controls 3 anti-clockwise to the minimum
voltage to the minimum position, adjust controls 4 clockwise to set the
desired output voltage level then connect the load to the output
terminals 5 & 6. Adjust controls 3 clockwise to set the output current
at the desired level for restricted current protection."
What does that actually mean?

It is gibberish to me.

 

You might mention in your postings that your email address is bogus,
so people don't waste time answering your questions.