[Dsg-hallb_magnets] [Revised Logentry] VCL Heaters

beng at jlab.org beng at jlab.org
Tue Sep 5 16:00:02 EDT 2017


Logentry Text:
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Scot replaced the thermal switch on the VCL heaters (normally 135K, could only locate a 185K switch for testing, will be replaced later with the correct value).

This has reduced the noise on the Cernox sensors by an order of magnitude (~5K to ~0.5K), but when viewed from the archiver it is apparent the noise is still higher when the heaters are on compared to when they're off; so we might need to revisit the issue if the noise is higher on other sensors (namely the VTs) or if this amount of noise is still a problem.

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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/3483535
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