david.barker@LIGO.ORG - posted 13:59, Tuesday 01 November 2016 - last comment - 20:24, Tuesday 01 November 2016(31071)
clean power cycle of h1iscex did not reverse ADC DC level shift
WP6288 Dave, Jim:
We cleanly power cycled h1iscex and its IO Chassis this morning between 11:45 and 12:06 PDT. We were not able to reproduce the slight offset on an ADC channel (see attached). Note this channel is actually only seeing ADC bit-noise, so the offset is in the micro-volt level.
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Sheila,.Jeff, Ed
This was an attempt to fix the drop in green arm power that happened last sunday. 30884
Since it didn't work, operators will continue to see that green power from the X arm is low.
If this can't be fixed, we can just rescale the normalization.