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User name V. Sulkosky
Log entry time 11:59:37 on May12,2009
Entry number 272680
keyword=Moved R-HRS VDC TOP HVI obtained a 1471N board from Doug and Seamus, which has been
installed in the R-HRS HV crate in slot # 3. I have connected the
R-HRs TOP VDC HV to channel 0 in this slot. The current trip limit
was set to 10 uA for all channels in this module. I also set the HV
ramp up rate to be 50 V/s.
If the HV trips, one will need to disable and re-enable this channel
to reset the top HV. The bottom HV is still reset via the crate
resets utility from the Hall A Tools page.
Shift workers should be informed that the R_TOP display will no longer
indicate the HV for the top VDC chamber for the R-HRS.
FIGURE 1
FIGURE 2
