[Dsg-dc] lower CO2 supply pressure alarming

Morgan Cook mcookiv at jlab.org
Wed Feb 21 08:36:59 EST 2018


Hey guys,

When y'all get a chance, can you check that the 'new' lower CO2 pressure sensor is working correctly?  It's alarmed low several times in the past 10 days.  However there's always been a full dewar on-line with it.  Looking at last nights' trend, it oscillated between ~350 psi  and 14 psi for about 20 seconds before settling down.  Both dewars had 300+ psi on the this morning.  Once I bled the pressure off that line, the sensor started reading correctly.

Thanks,
Morgan


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