Casella CEL CEL-593 - Manual (Page 16)

SETTINGS
REVIEW
'A'
STOP SLM 1
LIN FAST
PREV
VALUE
NEXT
VALUE
SLM
(2nd BARGRAPH ONLY)
GS-17
RECORD TIMER OFF
1 / 3
Q=3
=
1 / 3
more
2. Press the SETUP key to display the
relevant Setup screen (Figure 1) that
offers the following options.
LOAD: Loads the highlighted set up for
use and sets against the entry for
default loading next time the
instrument is switched ON.
STORE: Stores the current set up in the
highlighted space and sets .
DELETE: Deletes the highlighted entry.
If it is in current use, it remains active
until another is selected.
REVIEW: Displays the current set up.
3. Use or to select an entry.
4. Press REVIEW to access a setup for
editing.
Table 2 suggests settings for some
typical measurement tasks.
5. Use cursor keys to select entries and
VALUE keys to edit them.
6. When the “more” legend is shown,
access further relevant screens by
pressing or .
Table 2: Typical Measurement Tasks
Task Suggested Settings
Determine Noise Exposure of
Employees Working Near an
Impact Press
Use broad band ENV with 1 second period and EVT
enabled,
Measure Leq and LinPeak, Inspect period profiles,
Check events.
Measurements to Aid Selection of
Hearing Protection Suitable for the
Employees Above
Use 1 ⁄
1 octave band real time SLM,
Store SPLmax spectra followed by L eq spectra,
Apply data to protector selection chart.
Reduce Noise Levels in Location
Adjacent to a Noise Source
Use 1 ⁄
3 octave band real time SLM,
Compare stored SPL spectra from source with SPL
spectra from location,
Check for noise leaks/improvements.
Perform Annual Octave Band Noise
Survey in Factory at 102 Locations
Use 1 ⁄
1 octave band real time SLM,
Store L eq spectra snapshots at each location.
Investigate Intermittent Industrial
Noise Disturbing a Quiet Neighbour-
hood
Use 1 ⁄
3 octave band ENV with 10 minute period and EVT
enabled,
Measure L eq and determine Ln spectra values such as L 95
background noise, Check for events.
Police Cumulative Noise Limits Set
for a Quarry
Use broad band ENV with 60 minute period,
Measure L eq , SPLmax and determine Ln values such as
L 95 background noise.
Determine the Effect of Running
New Trains Through Quiet Country-
side
Use 1 ⁄
3 octave band ENV with 10 minute period and EVT
enabled,
Measure L eq , SEL and determine Ln spectra values such
as L 95 background noise,
Check event frequency profiles,
Use data to find projected daily L eq from train frequency.
7. Select and edit entries as in 5 and 6
above.
8. When all entries have been made,
press ESC key to recall the Set Up
Directory.
9. Select a store location (This must be
done).
10. Press STORE key to save the edited
version.
Page 74 - Getting Started - CEL-553/573/593