another brain cramp...question

Thread Starter

iONic

Joined Nov 16, 2007
1,650
I have a meter movement with Internal resistance of 1K Ohms. I don't know what it's full scale current is, but I want to set it to read from 0 - 14VDC.

Any clues?
 

hgmjr

Joined Jan 28, 2005
9,029
The empirical method may be your best bet.

You could take a variable power supply and a series resistor and hook up the meter all in series. Then starting with the power supply set to zero you could increase the voltage very slowly until the meter was at full scale and then do a bit of calculating to confirm the value of the current.

hgmjr
 

Thread Starter

iONic

Joined Nov 16, 2007
1,650
The empirical method may be your best bet.

You could take a variable power supply and a series resistor and hook up the meter all in series. Then starting with the power supply set to zero you could increase the voltage very slowly until the meter was at full scale and then do a bit of calculating to confirm the value of the current.

hgmjr
Thought I might have to do that. Maybe I can put my AnyVolt with 20 turn put into good use!!
 
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