EEVblog Electronics Community Forum
Electronics => Repair => Topic started by: nadona on October 08, 2014, 09:55:14 pm
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Hi,
I am looking for the input connectors for Agilent 34420A. I'd like to make a few for different ends and lengths.
Just something that fits to the terminal.
Thank you in advance.
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Agilent/Keysight sells them directly. Part number 34104A, USD$125 each. They are likely proprietary, so you won't have any other choice.
The instrument should include one one shorting block, and one cable with Kelvin connections (for 4-wire resistance measurements). This is all low-thermal stuff with pure copper used throughout.
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Agilent/Keysight sells them directly. Part number 34104A, USD$125 each. They are likely proprietary, so you won't have any other choice.
The instrument should include one one shorting block, and one cable with Kelvin connections (for 4-wire resistance measurements). This is all low-thermal stuff with pure copper used throughout.
Thank you.
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A friend of mine just bought this one:
http://www.ebay.com/itm/95H8756-Agilent-Technologies-34104A-Low-Thermal-Input-Connector-For-34420A-/261510593052?pt=LH_DefaultDomain_0&hash=item3ce33efa1c (http://www.ebay.com/itm/95H8756-Agilent-Technologies-34104A-Low-Thermal-Input-Connector-For-34420A-/261510593052?pt=LH_DefaultDomain_0&hash=item3ce33efa1c)
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I just make investigation and input connector used on Agilent 34420A and maybe Keithley 2182 seems to be LEMO V series connectors.
Replacement is FVN (cable or short) and EVP (meter) connectors.
http://www.lemo.com/catalog/ROW/UK_English/V_series_en.pdf (http://www.lemo.com/catalog/ROW/UK_English/V_series_en.pdf)
FVN-XX-304-CLAC-xx-Z
XX is probably 2V and xx depends on diameter of your cable.
If someone has original cable please measure diameter of nut.
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I can confirm the shorting plug for a 34420A works perfectly with a 2182.
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If you are looking for Dimension A, I can measure it when I get home in about 3hrs.
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I measure ~15mm
The Lemo part number on the plug is FVN.1S
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The Lemo part number on the plug is FVN.1S
Well not quite ...
Actually it is
FVN.1S.304.CLYC37Z
Then you get even the raw copper contacts ...
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The Lemo part number on the plug is FVN.1S
Well not quite ...
Actually it is
FVN.1S.304.CLYC37Z
Then you get even the raw copper contacts ...
That's a good point, that Lemo is not using pure copper contact and they are using beryllium bronze, bronze and brass.
Info in official catalog (page 178)
http://www.lemo.com/catalog/ROW/UK_English/unipole_multipole.pdf (http://www.lemo.com/catalog/ROW/UK_English/unipole_multipole.pdf)
According to number it looks like really custom made connector for HP and not official in Lemo catalog ( V series housing, S series insert and contacts made from almost pure copper) So it will be probably better to buy replacement from Keysight.
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>>> Actually it is FVN.1S.304.CLYC37Z
Can I check - is this the part # taken off a kosher set of Keysight/Keithley test leads?
TIA, Alan
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The PN does not contain information about copper contacts.Must be specfied separatelly.
https://www.eevblog.com/forum/repair/hpagilentkeysight-34420a-nanovoltmicro-ohm-meter-repair/ (https://www.eevblog.com/forum/repair/hpagilentkeysight-34420a-nanovoltmicro-ohm-meter-repair/)
cable FVN.1S.304.CLYC37Z price 50 EUR
meter input connector is EVP.1S.304.CLY price 40EUR
both with copper contacts not gold plated.
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Many thanks plesa, btw where did you find it for 50 EUR - I'm getting £76 i.e. ~100 EUR. Keysight gave me these UK distributors:
Aspen Electronics Ltd (Premium Partner)
Amplicon Liveline Ltd
Microlease Plc
and Microlease for instance is quoting the £76/EUR 100 price?
TIA, Alan