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    User name Reimer

    Log entry time 17:21:41 on May17,2008

    Entry number 238459


    keyword=Target PID and Beam compensation

    PID mode shut off heater for some reason. Stopped beam, verified from heater gui that heater was at 0W. Turned heater to manual mode and it returned to 10W (what it was set at). Turned heater back to PID mode. It appeared to be OK until beam was restored at which point the heater went to 0 again, and then slowly came back up. (see 2nd screen grab). Elaine noticed that beam compensation was not enabled. Turned beam conpensation back on. Now waiting for beam.

    FIGURE 1

    FIGURE 2