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    User name Yi Qiang

    Log entry time 18:37:38 on December13,2008

    Entry number 253286

    keyword=Temperature stablized for production

    With the new temperature controller, I managed to adjust the PI parameters for a stabilized oven temperature, right before we finished the reference cell test. With the new controller, due to the old firmware ( I assume), you will see sharp spikes in the read out stripchart occasionally and that's normal!


    FIGURE 1

    FIGURE 2