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Test Leads for Agilent 34401A
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Topic: Test Leads for Agilent 34401A (Read 1113 times)
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Picuino
Super Contributor
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Test Leads for Agilent 34401A
«
on:
April 18, 2020, 09:45:44 am »
Hi All.
I have a multimeter Agilent 34401A of second hand, with a normal test leads, from a cheaper multimeter.
I see that cheap test leads add a little error in the millivolt range so, I want to buy a good ones.
any buying advice?
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Picuino
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Re: Test Leads for Agilent 34401A
«
Reply #1 on:
April 18, 2020, 09:51:39 am »
Joining both probes I read 1.6mV
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Meltdown2011
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Re: Test Leads for Agilent 34401A
«
Reply #2 on:
April 18, 2020, 10:53:11 am »
It seems that your multimeter is in spec... It is a matter of accuracy rather than your probes.
34401A Accuracy Specification +/-(% of reading + % of range)
100.0000mV DC: 0.0050+0.0035 (1Year 23+/-5 deg.C)
Therefore, 0V input -> +/-(0mV*0.0050% + 100mV*0.0035%) ->
+/-0.0035mV
«
Last Edit: April 18, 2020, 11:13:47 am by Meltdown2011
»
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Picuino
Super Contributor
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Re: Test Leads for Agilent 34401A
«
Reply #3 on:
April 18, 2020, 11:16:34 am »
I have read wrong, changing comma with dot.
Ok, Thank you.
«
Last Edit: April 18, 2020, 11:39:50 am by Picuino
»
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jchw4
Regular Contributor
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Re: Test Leads for Agilent 34401A
«
Reply #4 on:
April 19, 2020, 08:45:12 am »
34401A zero also depends on NPLC:
https://www.eevblog.com/forum/metrology/dmm-adc-noise-comparison-testing-project/msg2977864/#msg2977864
(and probably on the range too).
Official leads are 34138A.
I believe these were marked obsolete for some time (?), and Keysight suggested another one without grabbers (were they out of grabbers?
), but they seem to be back
https://www.keysight.com/en/pd-826347-pn-34138A
.
«
Last Edit: April 19, 2020, 09:15:45 am by jchw4
»
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