Reports until 23:44, Friday 15 October 2021
LHO VE (VE)
gerardo.moreno@LIGO.ORG - posted 23:44, Friday 15 October 2021 (60291)
CP1 Overfill Via Script 3 Times

(Travis S., Gerardo M.)

We ran the autofill script 3 different times, 2 times with a successful result per the script, and one time the script stopped due to temperature error as reported by the thermocouple, settings are as shown when the script is ran.

First time running the script, overfill noted via one of the site cameras.  Script results below:

~./CP1_Fill.py 100 -130 600
CP1 Fill completed in 27 seconds. Starting CP1 fill. LLCV enabled. LLCV set to manual control. LLCV set to 100% open. Fill completed in 27 seconds. TC B did not register fill. LLCV set back to 34.5% open.

Second time running the script, some LN2 noted via the site camera, but it does appear as if it was successful due to the temperature reported by both TCs.  Script results below:
~./CP1_Fill.py 100 -150 600
CP1 Fill stopped, TE error. Starting CP1 fill. LLCV enabled. LLCV set to manual control. LLCV set to 100% open. TC A error. TC B error. Fill stopped. LLCV set back to 34.5% open.

Third time running the script, Travis ran the script and I was present by the discharge line, visually noted LN2 flow.  Script results below:
~./CP1_Fill.py 100 -130 600
CP1 Fill completed in 21 seconds. Starting CP1 fill. LLCV enabled. LLCV set to manual control. LLCV set to 100% open. Fill completed in 21 seconds. TC B did not register fill. LLCV set back to 34.5% open.

 

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