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    User name M. Stevens, H. Fansler

    Log entry time 11:41:14 on June 11, 2007

    Entry number 205140

    This entry is a followup to: 204957

    keyword=Ozone monitor restored to operation

    We entered the hall to determine why the ozone monitor flat-lined beginning last Saturday afternoon. We carried in a replacement ozone monitor box from Patty Hunt, in case the installed ones were bad. On entering, we observed that the irritant gas level was uncomfortable when we took off our respirators to smell it. The ozone monitor box local indication was at the bottom of its range. The new monitor read the same, when we powered it up. We installed the new monitor on iocha12, but the read-back never changed. We tried to reboot the ioc, but it would only talk to the network, not to the VME bus. Called Jack to see if there was something else we could do, and he worked with Pam Kjeldsen to change something in the code which allowed iocha12 to boot completely and talk to the VME bus. The readback jumped up to .0141 ppm. We exited the hall.

    A copy of this log entry has been emailed to: folts@jlab.org, dezern@jlab.org, fansler@jlab.org, spiegel@jlab.org, segal@jlab.org