Casella CEL CEL-281 - Manual (Page 60)

In any other display mode, this key combination selects the
upper (SET) command on the key, cancels the other mode so
that the time and date can be set. The current time will be dis-
played first with one of the digits blinking to indicate that it can
be edited.
Pressing the or keys move the blink function to allow
another of the digits in the currently displayed time to be ed-
ited. Then moving the cursor off the display (either to left or
right) selects the current date which can also be edited.
Pressing the or keys change the selected digit, then
pressing the key again sets any edited values.
+ (both keys pressed simultaneously)
While in calibration delay or calibration modes, while the RUN
symbol is displayed to indicate that data is being logged, when
the display has been switched off, while the instrument is
paused, or the current time has not been set, this key combina-
tion will be ignored.
In any other display mode, this key combination selects the
lower DELAY command on the key, cancels the other mode
and displays one of the start or stop times and dates so they
can be set. The current time will be displayed first with one of
the digits blinking to indicate that it can be edited.
There are storage locations for ten start times and dates, and ten
stop times and dates to allow different start and stop times to
be programmed for a five day working week, including meal
breaks.
How It Works
Page 52 - CEL-281 Operator's Handbook