Having contacted several time nuts off list to cut down traffic but no response
will some one tell me the battery number covered and number of cells so I am
properly prepared to exchange. Thanks
Bert Kehren In a message dated 11/13/2020 4:37:29 PM Eastern Standard
Time, r...@sonic.net writes:
I have a Fluke PM6681 Counter On the ko4bb site there is an image of the
counter's v1.05 PROMs. I just pulled the v1.09 PROMs from my counter and read
out the contents. I have placed the result
here:http://www.xertech.net/pm6681/Fluke_PM6681_Counter_PROM_v109.zip Anyone
interested, please download. If you see any issues or improvement suggestions,
please let me know. If all is well in a few days I'll look into uploading this
to ko4bb. ---- Back story below ----I have been following and participating in
the thread "Frequency Counter Choice". There has been a long discussion about
the PM6681/Cnt-81 counter, mostly about saving and restoring one calibration
parameter that gets lost if the internal backup battery dies. A method was
described, but currently seems unresolved if the restore method works as hoped.
This promped me to open my PM6681 and ensure the battery was good. Having done
that, I knew about the v1.05 PROM image but had never seen a v1.09 image. I
decided to unplug the AC power and carefully remove the two v1.09 PROMs from my
counter. I read out their contents with a reader/programmer tool I have. I
returned the PROMs to my counter, applied AC, and the counter seems to be
working fine. The link provided above is my sharing of the results of this
exercise. _______________________________________________time-nuts mailing
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