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    User name jpchen

    Log entry time 11:46:57 on April13,2007

    Entry number 198873

    keyword=target HP heater alarm

    The alarms on HP heater went to too high happened yesterday were probably due to the readback of EPICS value (beam current?) became zero. The calculated beam power became zero, It is not critical since PID loop will correct this. I changed the the cell property parameter to have more accurate values. Also chanegd upper alarm limits.
    Similar situation for alarm on HP heater went zero.

    If this happens often, We could turn off the BEAM CONPENSATION.

    I adjusted flow to 19 g/s to have a little less HP heater (70 watts) with beam on (95 uA).