3421A Data Acquisition Units

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3421A Data Acquisition Units

11-01-2021, 09:04 PM

Post: #2

Dave Frederickson Offline

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Posts: 2,249
Joined: Dec 2013

RE: 3421A Data Acquisition Units

(11-01-2021 03:54 PM)Don Williams Wrote: Unit #6471 - Parts mule
Has a Cal error which I believe is in the RAM chip.

The Cal error is likely caused by a depleted CAL RAM battery. Procedures for backing up the CAL RAM prior to replacing the battery and restoring the CAL RAM can be found here.
https://www.hpmuseum.org/forum/thread-8061.html

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Messages In This Thread

3421A Data Acquisition Units - Don Williams - 11-01-2021, 03:54 PM

RE: 3421A Data Acquisition Units - Dave Frederickson - 11-01-2021 09:04 PM

RE: 3421A Data Acquisition Units - Don Williams - 11-01-2021, 10:51 PM

RE: 3421A Data Acquisition Units - Duane Hess - 11-02-2021, 03:52 AM

RE: 3421A Data Acquisition Units - Don Williams - 11-09-2021, 05:19 PM

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