EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: Giallograle on November 07, 2024, 06:50:32 am
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I need some Kelvin clips for a used Agilent 34401A multimeter, through hole and tweezers for SMD.
I'd like decent quality, and as I'm in Asia, I'll be looking on Taobao. Are there any good-value brands to look out for?
Thanks!
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ETA ETA3108
not bad for the price. :-+
https://en.tw-eta.com/index.php?c=category&id=22
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Good value, but unshielded?
Have I missed something?
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Good value, but unshielded?
Have I missed something?
What are shielded kelvin clips?
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the 5th wire, some are coax shielded and all 4 probes shield are connected together (5th) to a ground body of the instrument
as for efficiency ???
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I don't know what you mean by shield kenvin clips, but usually coax cable shields are used with a guarded(BNC GND ring) on the meter side and unconnected on the kelvin clip side.
the 34401, it is a regular 4mm banana, so you can cut a high-quality banana cable(pomona etc...) and connect it to the kelvin clip.
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the 5th wire, some are coax shielded and all 4 probes shield are connected together (5th) to a ground body of the instrument
as for efficiency ???
Where do you connect it on your multimeter?
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Solartron 7075 has a 5-pin Fischer or Lemo connector with the guard being one. Some other older meters, like Fluke 8300A iirc just have an extra banana/binding post
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Solartron 7075 has a 5-pin Fischer or Lemo connector with the guard being one. Some other older meters, like Fluke 8300A iirc just have an extra banana/binding post
Sure, and the old 3458A at work had that.
How about the Agilent 34401A like the OP has?
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Solartron 7075 has a 5-pin Fischer or Lemo connector with the guard being one. Some other older meters, like Fluke 8300A iirc just have an extra banana/binding post
Sure, and the old 3458A at work had that.
How about the Agilent 34401A like the OP has?
The 34401A and 34465A manuals mention this in the section Low-Level Measurement Errors
For this reason, you should apply low-level ac voltages to the multimeter through shielded cables. You should connect the shield to the input LO terminal.
For reference, the Keysight Kelvin probe set P/N 11059A uses RG174 cable with the shields terminated to the 5 banana plug (open at the Kelvin clips), and an extra alligator clip at the other end.
They are quite expensive, but I bought mine a long time ago when they were significantly cheaper (but obviously not as cheap as decent Chinese ones).
https://www.keysight.com/au/en/product/11059A/kelvin-probe-set.html (https://www.keysight.com/au/en/product/11059A/kelvin-probe-set.html)
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Thanks everyone.
After ordering the ETA4551 (Kelvin clips to 4mm plugs, unshielded), I eventually found the ETA3206 adapter plug - 4mm plug to 4mm socket suitable for sheathed connectors - on www.tw-eta.com (http://www.tw-eta.com). ETA has a shop on Taobao where I got them for $1.5 each which will allow the use of the usual test leads across devices.
Lots of other useful leads in a wide range of formats, and test fittings on this site, eg BNC set to SMD so I'm ordering a few more leads.
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Hello Giallograle,
Check out this small clip with a strong spring (https://uk.rs-online.com/web/p/kelvin-clips/7148263).