Looking for the input connectors for Agilent 34420A

• Looking for the input connectors for Agilent 34420A
  Posted by nadona on 08 Oct, 2014 21:55
• 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.
• #1 Reply
  Posted by macboy on 09 Oct, 2014 13:07
• 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.
• #2 Reply
  Posted by nadona on 10 Oct, 2014 05:05
• Quote from: macboy on 09 Oct, 2014 13:07

  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.
• #3 Reply
  Posted by HighVoltage on 10 Oct, 2014 11:19
• 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
• #4 Reply
  Posted by plesa on 06 Dec, 2015 15:24
• 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
  
  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.
• #5 Reply
  Posted by ManateeMafia on 07 Dec, 2015 04:52
• I can confirm the shorting plug for a 34420A works perfectly with a 2182.
  
• #6 Reply
  Posted by ManateeMafia on 07 Dec, 2015 04:58
• If you are looking for Dimension A, I can measure it when I get home in about 3hrs.
• #7 Reply
  Posted by ManateeMafia on 07 Dec, 2015 08:52
• I measure ~15mm
  
  The Lemo part number on the plug is FVN.1S
• #8 Reply
  Posted by engiadina on 07 Dec, 2015 15:50
• Quote from: ManateeMafia on 07 Dec, 2015 08:52

  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 ...
• #9 Reply
  Posted by plesa on 07 Dec, 2015 16:18
• Quote from: engiadina on 07 Dec, 2015 15:50

  Quote from: ManateeMafia on 07 Dec, 2015 08:52

  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
  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.
  
• #10 Reply
  Posted by alanambrose on 11 Mar, 2016 10:39
• >>> 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
• #11 Reply
  Posted by plesa on 12 Mar, 2016 17:18
• 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/
  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.
  
  
• #12 Reply
  Posted by alanambrose on 14 Mar, 2016 15:47
• 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