User name jpchen
Log entry time 12:23:51 on June 5,2008
Entry number 241135
This entry is a followup to: 241128
keyword=loop 3 fanLoop 3 fan started to fluctuate again. I raised the spedd from 20%
(48 Hz) to 23% (55 Hz). It seems stable now.
This happened last time on Monday 6/2 (see halog 240787) when we had to raise fan speed from 15% (36 Hz) to 20% (48 Hz) to keep it stable.
Seems the fan is deteriorating. We need to keep an eye on it.
I Also adjusted coolant flow slightly to keep the HP heater power stay about the same.
FIGURE 1
