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HP8594E battery type?

Question asked by joemcc on Mar 26, 2013
Latest reply on Feb 13, 2015 by avvidclif

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I've read of a few people losing settings/calibration because of dead batteries in their 8594E. I thought I'd strike first & replace mine. I have the older model with the 023 option installed. Can anyone tell me what is the battery type in the unit so I can order one without having to open the case?

Thanks,

Joe

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tabbott Mar 27, 2013 10:37 AM
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Hi Joe -

There were two batteries used in the 9xE products. If the serial prefix of the instrument is <3523A or in your case has a single I/O (023, RS-232) interface, the battery was physically located directly on the CPU board. The battery part number in this case is 1420-0331. This is a 3.6V Lithium battery. Agilent has stock of this battery, but may not sell directly to you. You may have to send your analyzer into Agilent to have the battery replaced.

If the serial prefix of the instrument is ≥3523A, the battery part number is 1420-0394. Since you have option 023, your serial prefix is probably <3523A. This battery was located on the dual I/O board. This battery can still be purchased through Agilent at http://www.agilent.com/find/parts The manufacturer’s part number is CR-2477/HFN. It is a 3 Volt battery and contains Lithium Manganese Dioxide.

Regards -
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- joemcc @ tabbott on Mar 27, 2013 10:54 AM
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  Thanks for the reply. It is the older model that I have. Do you know if that battery is rechargable? Is it a standard battery with a regular (not Agilent) part number?
  
  I'm guessing any suitably rated Lithium battery would do it if the battery is not rechargable. It could be secured anywhere nearby if it did not fit on the board?
  
  Joe
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- MikeM @ tabbott on Aug 21, 2014 6:44 PM
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  Hi Joe,
  
  We get the old style battery from Tadiran Batteries. Their part number is TL-5104/P. It is not rechargeable.
  
  Attached are a picture of the battery and the datasheet from the vendor.
  
  Best regards,
  Mike
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  - 1420-0331.png203.5 KB
  - tl5104.pdf127.7 KB
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  - joemcc @ MikeM on Mar 27, 2013 2:57 PM
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    Great. Thanks for that. It looks reasonably standard.
    
    Joe
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    - avvidclif @ joemcc on Feb 12, 2015 11:12 AM
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      Where does SN 3523 fit?? Old or New style?
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      - MikeM @ avvidclif on Feb 13, 2015 9:04 AM
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        Serial prefix 3523 and greater should have the newer coin style battery (1420-0394).
        
        Serial prefix 3523 is when the change was made to the CPU board to put the SRAM and battery on a little daughter board that attaches to the CPU board. At that time the dual I/O configuration was also introduced. So instruments that shipped with option 043 instead of 041 (or 023 instead of 021) could be identified as having the dual I/Os along with the new CPU board and the SRAM daughter board, and thus the newer coin style backup battery.
        
        Of course, this is how things left the factory. Configurations could have changed on any given instrument due to field upgrades being done, or parts mixed and matched.
        
        Best regards,
        Mike
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        1420-0394.png614.3 KB
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        avvidclif @ MikeM on Feb 13, 2015 8:14 AM
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        Thanks, I'll wait until it gets here and see for sure which battery it has.
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HP8594E battery type?

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