^^Yessir that picture is accurate

Where and how? I disconnected the positive lead to the volt meter, set my multi meter to milliamps and observed the current draw during use.

Specs are listed as 130 milliseconds from lowest reading to highest reading

 

Any more ideas?

 

I have a project where I need to drop voltage by exactly 1 volt. +/- no more than .05v.

Perhaps a silicon diode (0.7V) and a germanium diode (0.34V) in series?

 

I don't think those are going to meet his accuracy requirments over the temperature range he is looking at.

My guess at why the meter draws so much more current than a voltmeter "should" is that this is being powered by the voltage it is measuring, isn't it. In other words, it has no internal battery and no external power connection. Is that correct?

 

Any more ideas?

I think the LM431 that #12 suggested is the best bet for a place to start.

 

I don't think those are going to meet his accuracy requirments over the temperature range he is looking at.

My guess at why the meter draws so much more current than a voltmeter "should" is that this is being powered by the voltage it is measuring, isn't it. In other words, it has no internal battery and no external power connection. Is that correct?

Yes that is correct

 

Then that leaves open the possibility of building a box that is powered by the system being measured and that simply outputs a voltage signal, via an emitter follower, that is capable of driving the meter. That would give you the full voltage range to work with for your reference circuitry.

 

Ok cool. Thanks all! I guess I have a couple things to try haha