CASELLA CEL CEL-450 Handbook page 13

Figure 4: Simplified menu structure
(Some of these options may not be available on all versions)
Simple procedures allow a measurement setup to be selected
and the instrument to make the required measurements and save them
automatically in separate data memories for each bandwidth.
Data stored in the memory can be recalled to the display for
inspection, so that the operator can confirm that the results are valid
before leaving the test site.
The instruments can be operated and deliver adequate results
without the need for other equipment, beyond an acoustic calibrator. All
operations can be controlled via the instrument keypad and simple menu
options. Figure 4 shows the basic arrangement of the main menu, while
a more comprehensive menu structure is given on the fold out sheet at
the back of this book.
However, the instruments become even more versatile when
their measurement and setup data is downloaded to a PC using the
dB23 Windows™ based software. This software has the facilities
expected of fully featured Windows™ packages offering post
processing, cut and paste between applications, comprehensive word
processing capabilities, and extensive on screen graphing facilities.
Introduction
CEL-450/490 Operators Handbook - Page 13