Racal Instruments 1994 Service Manual page 98

Universaltimer/counters
Table of Contents

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1
0
Display
Digits
2
0
3
0
4
0
0
32
20
11
Special
Function
Numbers
Selected
Figure
3.3
-
Special
Function Register Display
3.4.10.3
Special
Function Storage
3.4.10.3.1
Special function
numbers must
be entered
into
memory
before
special
func-
tions
can be
enabled.
Use
the following
key sequence
to store, for
example,
special
function
21:
21
SHIFT
STORE
SF.
3.4.10.3.2
The
digits for
a
special function
number
are
shown
on
the
display as
the
numeric
keys are
pressed.
Once
the
number
is
stored,
the counter automatically returns
to the
measurement mode.
3.4.10.3.3
When
a
number
is
stored,
it
overwrites the
number
stored
in
the
same
decade. Therefore,
to
remove
a
number from
its
register,
another
number
from
the
same
decade must be
stored.
3.4.10.3.4
Numbers
stored
in
the
special function register are retained
when
the
counter
is
switched
to
Standby
mode
and
as
a
front-panel setting
in
Recall
Memory
mode.
3.4.10.4
Special
Function Recall
3.4.10.4.1
Stored special functions are recalled
for
display using
key sequence
SHIFT
RECALL
SF.
3.4.10.5
Special
Function
Enabling/Disabling
3.4.10.5.1
The power-on
home
state for special functions
is
that
none
are stored.
Default
state
then corresponds to the special function
register,
with
all
digits
displaying
zero.
Successively use
key sequence
SHIFT
SF
to
enable and
disable stored special
functions.
The
LED
lights
when
special functions are enabled.
NOTE:
Storing a special function
when
special functions are
enabled immediately
enables that
special function.
3-42

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