Casella CEL CEL-368 - Manual (Page 31)

• Whether overload occurred during the profile,
• Whether the battery volts fell below 3.6 V during the profile.
Event:
In event mode, events that exceed user determined threshold levels be-
tween 40 and 139 dB for longer than user-set delays up to 30 sec can
be stored.
A maximum of 999 events can be collected during each logging run. In
addition, a 1 sec Max profile of the first five minutes of the events may
also be stored.
The following information is determined and stored for each event*:
• Cumulative store (run) identity,
• Event identity,
• Time when level first exceeded threshold to nearest second
(if the event is shorter than the user set delay, it will not be
recorded),
• Duration of event to nearest second (up to 9 999 seconds),
• Delay time set,
• Threshold level set,
• SPL Max - maximum noise level reached during the event,
• Time when maximum level reached to nearest second,
• SEL - sound exposure level for the event,
• Whether 200 Pa level was exceeded during the event
(70 - 140 dB range only),
• Whether overload occurred during the event,
• Whether the battery volts fell below 3.6 V during the event.
When the event profile option has been switched ON, the following addi-
tional information is stored:
• 1 sec Max profile of the first five minutes of the events,
Time
Start of
Logging
930006
End of 1st
Period
End of 2nd
Period
End of 3rd
Period
End of 4th
Period
Period Data (999 Periods/Cum Period)
Period Mode
Duration
Start Time
Max Level
Time of Max
Event SEL
5 min Profile
Duration
Start Time
Max Level
Time of Max
Event SEL
5 min Profile
Duration
Start Time
Max Level
Time of Max
Event SEL
5 min Profile
Profile Data
1st Period:
Data from
Identities
Period Start
Lmax
Leq
Lavg
4 x Ln
2nd Period:
Data from
Identities
Period Start
Lmax
Leq
Lavg
4 x Ln
3rd Period:
Data from
Identities
Period Start
Lmax
Leq
Lavg
4 x Ln
4th Period
Data from
Identitities
Period Start
Lmax
Leq
Lavg
4 x Ln
Profile Data Profile Data Profile Data
Profile Data
From Up To
Four Profiles
Level Data
Time And
Cumulative Data
Period
Cumulative
4 x Ln
Data from
End of Cumulative
Period
Lmax
Leq
Lavg
Threshold
Delay Time Set Profiles of First 5 mins
1 sec SPL Max
Level Set
Event Data
(999 Events/Cum Period)
Event Mode
Cumulative Mode
Duration
Period Start
Figure 1: Relationship between Cumulative, Period and Event Mode Data
CEL-268/368 Operator's Handbook - Page 27