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    User name mercado

    Log entry time 19:07:58 on September 8,2009

    Entry number 288665

    Followups:

    keyword=HAPPEX DAQ: Added another 18-bit Voltage ADC to the Counting House

    
    This one will be used to replace the 16-bit ADC currently being used to read 
    out bpm12 signals.
    
    The 16-bit board has been saturating lately, so this should fix the problem. 
    The 18-bit board that was installed has a range of about 7.5 Volts, as opposed 
    to the 16-bit board which had a range of 5 Volts.
    
    Run 12153 was used to test the range. During run 12154 I connected the bpm10 
    signals to the 18-bit board. This is to make sure the data makes sense and that 
    differences can be calculated properly.