Author Topic: Help needed with calibrating my DIY Voltmeter  (Read 2131 times)

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Offline hillflyer

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Help needed with calibrating my DIY Voltmeter
« on: September 23, 2016, 01:06:31 pm »
Hello,
I have built a compact, portable 6 digit Voltmeter
using a LT2400 ADC and a Max6350 reference.
It has the input range of the LT2400, -0.1V to +5.1V.
Who in Germany could help me with getting the thing calibrated against their
own 'proper' DVM?

Kind regards,
Hannes

edit: the standard deviation value in the picture goes down to 2uV with shorted input
« Last Edit: September 23, 2016, 01:27:41 pm by hillflyer »
 

Offline HighVoltage

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Re: Help needed with calibrating my DIY Voltmeter
« Reply #1 on: September 23, 2016, 01:41:51 pm »
If you are in northern Germany, I can offer you a comparison to my many proper DMM, up to 7 1/2 digits.
There are 3 kinds of people in this world, those who can count and those who can not.
 
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Offline e61_phil

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Re: Help needed with calibrating my DIY Voltmeter
« Reply #2 on: September 23, 2016, 01:55:19 pm »
I'm also in northern germany (near Bremen). I have some calibration gear. A Fluke 5440B DC calibrator for example

@HighVoltage: Where do you come from?
 
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Offline hillflyer

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Re: Help needed with calibrating my DIY Voltmeter
« Reply #3 on: September 23, 2016, 02:39:21 pm »
I am in the south, near Augsburg,
but I think I could package the little meter well and send it in the post.
Hannes
 

Offline acbern

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Re: Help needed with calibrating my DIY Voltmeter
« Reply #4 on: September 23, 2016, 03:10:47 pm »
I am very close to you...
And have calibrated standards.
Send me a PM.
 
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