Doing a DetChar measurement under work permit #4762.

The HEPI Master Switch is open.  Both Stages of the ISI is in HIGH Isolated state under Guardian control.  Operators should reset the watchdogs (after appropriate investigation) and let Guardian go.  I have updated the ISI Isolation 'Correct State Bits H1:ISI-ETMY_ST1_ISO_X_STATE_GOOD.'  This will allow the ODC bit to go green.  Of course now I need to do a Safe.snap, soon. With the Master Off.