Casella CEL CEL-393 - Manual (Page 77)

the level in the band, the interval between the indicated frequencies will
make it obvious whether a third octave or octave scan is being displayed.
The contents of the memory may be displayed any number of times
without losing stored data, provided the the command sequence 0C to
clear the memory is not given, nor the instrument switched off.
All results may be hand written on pre-printed report sheets (SP1084),
or printed automatically using the CEL-238, CEL-338, or CEL-438 Digital
Processor/Printer. If the CEL-160 Graphic Recorder is connected, using
the C4209/2 Cable Set, frequency spectra can be produced automat-
ically.
Switch the instrument off when all the required information has been
obtained.
7 DEFAULT CONDITIONS
393 Handbook /73.