New Multimeter

[AxelD]

Hi,

The manual for my new multimeter indicates i need to put the red lead into the 10A socket for current measurements. Black goes to the ground socket as usual.

With my old multimeter i didnt really bother using the 10A socket (i used the other positive socket) for all measurements - the max current i would measure is about 0.5A. Can i do this with the new one as well?

Thanks

 

[Pommie]

Most meters now have a separate socket for current measurement as you're effectively shorting the leads when measuring current. It's just a safe guard. As to whether you can measure smaller currents in the normal lead positions, you need to read the manual.

Mike.

 

[crutschow]

The reason for the separate terminal for 10A is to avoid running the high current through the selector switch, which has a low current rating.

 

[AxelD]

Out of interest, what would that current rating be?

It could explain why sometimes i used to get a hum from the meter...

Thanks all

 

[Willbe]

put the red lead into the 10A socket for current measurements. Black goes to the ground socket as usual.

You're connecting to the built-in shunt.

On the 200 mA scale, since the internal fuse costs money, I measure the voltage across hi-watt low-ohm resistors instead.

And a 100 W 100 Ω rheostat comes in handy for troubleshooting house electrical problems.