[Hallb-engineering] [New Logentry] Torus Alarm: METAL4K_DT_MAX

kashy at jlab.org kashy at jlab.org
Sun Jan 6 07:35:02 EST 2019

Logentry Text:
Last night at 1/5/2019 at 22:39 there was a 5 second period where the signal went from 4.5K to 255K. 

All signals that go into this this signal jumped at this time. 

But only the first one above went to 255K.

A similar alarm went off this morning at1/6/2019 at 6:16
This time it was triggered by a quick step change from 4.5 to 43K on  the USHR signal.

(Neither of these can be real temperature changes so it must be something in the instrumentation)
These were false alarms. Can we find a reason and stop it from happening?



This is a plain text email for clients that cannot display HTML.  The full logentry can be found online at https://logbooks.jlab.org/entry/3641551
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