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    User name Seonho Choi

    Log entry time 15:24:41 on June18,2004

    Entry number 126197

    keyword=Target operating condition

    Jian-Ping gave us instructions on target operating condition. When Hall C target cooldown is complete, we want to have

    1. CHL flow somewhere around 15 g/s, but no more than 15 g/s
    2. PID loop temperature at 7.00
    3. Fan speed 48 (20%)
    4. HP heater around 250

    This condition should be OK for 30uA beam current. When adjusting JT valve to control CHL flow, make sure to follow the procedure in the Guide (basically no more than 1% change per minute).

    After you get the stable operating condition, adjust limits for the alarm so that you won't have any false alarms.