Hi All,
So I have (with much help) created a DC boost circuit discussed here http://forum.allaboutcircuits.com/threads/dc-buck-boost.116393.

This is my circuit

So I have two multimeters. I have a UEI brand DM383B and also a GE2524. Both have settings and probe locations for measuring DC amperes of up to 10A. I understand that I should disconnect the positive connection from supply to load. Connect my meter's positive probe to the now available supply positive and then the negative meter probe to the positive load lead. Leaving the negative supply to negative load as is (fully connected with nothing between). I get a zero on both meters and the load does not become active. What in the world is going on?

Thank You, John

 

Post the data sheet for the ammeter

 

Are you using the 10A current input terminal to the multimeter?

 

I forgot to mention; yes, I am using the appropriate 10A meter terminal and have the dial set to DCA 10A.
http://www.ueitest.com/sites/default/files/product-resources/DM383B Manual.pdf

I have just tested a small DC motor using my lab power supply. Connecting the motor directly to the supply and the motor works well. Remove positive and add the meter in series and the motor does not work at all and I get no reading on the meter.

 

Sounds like your meter fuse is blown

 

I could well be that the meter fuse is blown, but first go back a little, is the red positive lead in the 10A socket, and the black negative lead in the com socket with the setting knob set to DC 10A?

 

It has already been said.

Is the Red meter lead in the A spigot?
Is the internal 10A fuse blown?

 

Yeah, I am using the meter properly I just have this amazing knack for overlooking the completely obvious. Both fuses in the GE meter were blown and just the larger fuse in the UEI meter was blown. They be measuring amps now!

Thank you very much, John