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User name X. Zheng
Log entry time 23:00:10 on September23,2005
Entry number 155740
Followups:
keyword=VESDA alarm
At 10:30pm the "Right Shield Hut VESDA" alarm went off. Lights for "ZONE" and "Filter"
are flashing and the light for "Smoke Level" is one. Consulted Jack, he came in, checked
the box, and here is what he suggested:
Since none of the level lights on the left (labeled as "1, 2, 3, 4, 5...10" from bottom to
top) is on, and the light "OK" below them is on, the smoke level is probablly OKay. But the
smoker detector (or whatever has this "filter") needs to be serviced. Consult the run
coordinator or Jack if there is an opportunistic access.
Jack silenced the alarm so the owl shift workers can nap.
PS the TO (from Hall B) said VESDA="Very Early Smoke Detection Apparatus", something
the shift leader doesn't know.