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Retrofitting 3.5mm connector from HP 8485A sensor onto an existing HP 8481A sensor - possible?


 

Have a HP 8485A sensor I bought used, turns out it had been damaged due to overload, seller refunded, now have a physically nice but electrically dead HP 8485A sensor.

Have a HP 8481A sensor surplus to my needs.

I'm interested in the possibility of converting my 8481A to an 8485A (3.5mm male connector), albeit not calibrated, in lieu of the cost of buying a working 8485A.

Found a Keysight publication that seems to be quite comprehensive coverage of this era sensor:



This is titled "Keysight 8480 series coaxial power sensors operating and service manual." I wasn't aware the manual existed; it is current publication from Keysight.

The manual has pretty extensive "how to disassemble and reassemble" and other maintenance activities.

The underlying thermocouple sensor element appears to be the same part number for 8481A and 8485A, so this brings me to my question - could I create a thermocouple sensor with a 3.5mm HP male connector that could subsequently be recalibrated and used as an 8485A?

I've searched and haven't found any reports of the practicality or result of actually trying this procedure.

Thanks for any comments, observations, or requests for clarification.

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