Casella CEL CEL-368 - Manual (Page 22)

and the combined 1 ⁄
4 " microphone and preamplifier unit on the Type 2
CEL-368. They accept the CEL-3025 Vibration Attachment connected
via a CEL-225/3* (or a CEL-225 Preamplifier) so that vibration levels
can be measured.
2.1 Control & Display
Operations are selected and controlled by extensive menu screens that
are shown on the 9 character x 12 line LCD display which can present
results in both alpha-numeric and graphical format. The combination of
menus and key controls enable the most commonly used parameters to
be selected for measurement and storage.
To minimise setting-up operations, the last used settings are retained
even while the instrument is shut off so that when required, measure-
ment can be started or resumed using only three key strokes. The con-
trol software also features comprehensive on-screen instructions and
advice to guide the user through instrument preparation and measure-
ment. This makes it difficult to take measurements with invalid settings.
2.2 Data Storage
Both instruments have four independent data stores numbered 1 4. If
required, a single store
may use the full 60 000
value memory capacity.
ALL results collected
during a logging run (=cu-
mulative period) are
stored together in the
first free data store to al-
low four complete and
separate sets of measurements to be stored, and the non-volatile mem-
ory keeps data safe even while the instrument is switched OFF.
Note* The CEL-225/3 is supplied with the CEL-268, but must must be ordered
separately for a CEL-368.
Irrespective of run length, once four
logging runs have been completed, all
four stores become "occupied" to
prevent existing data being overwritten.
No further logging can take place until
the contents of at least one store have
been deleted to make room.
Page 18 - CEL-268/368 Operator's Handbook