CASELLA CEL CEL-450 Handbook page 50

Operation
Operation Press Display Shows
2. If required,
change the
measure- to
ment enable
functions quick
edit
mode
3. If required,
change the
display
span and
offset, and
the range
of scanned
frequencies
4. Select the
or
top end of
the dB
scale
5. Select the
or
bottom
end of the
dB scale
Page 50 - CEL-450/490 Operators Handbook
Comments
The measurement functions
can be selected as follows.
All broad and narrow bands:
F, S or I time weigting with
A, C or Z frequency
weighting, so that
pre-weighted frequency
analysis can be performed.
Use and to select a
field.
Use and to change
the entry in the field. Then
save the settings by
pressing to resume
normal operation.
This activates quick edit.
This allows the top end of
the displayed scale to be
changed, i.e. the span.
Use and to make
the required changes.
This allows the bottom end
of the displayed scale to be
changed, i.e. the offset.
Use and to make
the required changes.