Casella CEL CEL-368 - Manual (Page 30)

in addition, a profiling option can be activated to store up to four period
profiles.
The following period information is determined and will be stored for all*
periods during the run:
• Cumulative store (run) identity,
• Period identity,
• Period interval,
• Start time of period to nearest second,
• Measurement settings (time and frequency weightings),
• Maximum sound pressure level attained during period (some-
times known as L
max or L n0 value),
• L eq - equivalent continuous level calculated over period,
• Up to four user pre-selected L n values,
• L Avg - average noise level calculated over period with any
separately selected Q value,
• Whether logging has been paused by pressing during
the period,
• Whether 200 Pa level was exceeded during the period
(70 - 140 dB range only),
• Whether overload occurred during the period,
• Whether the battery volts fell below 3.6 V during the period.
When the profile option has been switched ON, the following additional
information may also be stored (but cannot be shown on the display):
• 1 sec Max profile - when period is set to either 1 or 5 minutes,
• 1 sec L eq profile - when period is set between 1 and 5 minutes,
• 1 min L eq profile - when period is set between 5 and 60 minutes,
• 1 min L Avg profile - when period is set between 5 and 60 min-
utes,
• Whether logging has been paused by pressing during
the profile,
• Whether 200 Pa level was exceeded during the profile
(70 - 140 dB range only),
RUN
PAUSE
RUN
PAUSE
Note* If the instrument reaches the end of a cumulative run before the current period
has ended, as the results for the current period are still incomplete, no data will
be saved for this period and the results lost.
Page 26 - CEL-268/368 Operator's Handbook