User's Manual

28 STAR ZoneScan Technical Manual
STAR ZoneScan System Operation
STAR ZoneScan System Operation
The STAR ZoneScan leak detection system operates in a 24-hour cycle according
to four distinct phases.
The four phases are:
1. MTU gathers new configuration parameters for the ZoneScan data loggers.
2. Performs recordings (always perform an Amplitude Distribution Study and
possibly a Correlation Study. Please see Recording Data on page 29)
3. Sends files from ZoneScan data loggers to NCC.
4. User interprets data and may modify configuration parameters.
In order for the STAR ZoneScan leak detection system to work properly, each of
the four phases must be performed in order according to a 24-hour cycle. The time
when the phases begin and end may vary, however, they must all be completed
within a period of 24 hours.
N OTES Phase 1 always begins at 10:00 p.m. and ends at 12:00 midnight local time.
Phase 2 must end by 8:00 a.m. local time.