betsy.weaver@LIGO.ORG - posted 14:41, Wednesday 19 November 2014 - last comment - 14:43, Wednesday 19 November 2014(15178)
RTD TCS temp sensor gains and offsets reloaded
As per Aidan, I set all 4 of the LOWER RH RTD channel calibration gains and offste to their nominal setting. Likely these were not input after the summer vent or they were over written sometime since. Settings for all 4 should be:
LOWERRTD_GAIN = 50 (K/V)
LOWERRTD_OFFSET = -257 (C)
One arm RH calibration medm screen shot is attached.
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However, a trend of the last hour of all 4 RH RTD channels since I made the setting change, show that there are likely missing external parts to 3 of the 4 temperature probes. Only ITMy RTD looks reasonable.
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