Mode
l
5315A
/ B
Operation
3-4
3-25. TOT STOP/START
3·
26.
Totalize
STOP
/
START
is
a manually gated, totali
ze
mode
of
operation. Pressing the Blue
sh
ift key (IN posi
tio
n) opens the main gate, allowing INP
UT
A events to
be
coun
ted. P
ress
ing the
sh
ift
key again (
OU
T
po
si
tion
) cl
oses
the gate, stopping the coun
t.
The count
is
continuously di
s·
played, and cumulati
ve
from
gate cycle to gate cycle, The
RE
SET
button
clears the counter and
re
sets
the display
to
zero, Figure 3-3
ill
ustrates the Totalize
STOP
/ ST
AR
T and A
BY
B modes of
operation.
I
'J
'J
EVENTS
ARE
,
I
TOTALIZED OVER
I
'J
''-
ONE
_OF_ F
OUR
I
''-
, J
GA
Te
DU
RATIO
NS
,
DETERMI
NED
BY
SL
OPE
i '
,
''-
'
'-
SELECTION
I
GATE
[N
AtLE
1
_,
CHAN t INPUT
FaA
I I
A
ty
t
MODE
A
...
I'
l START :
"\....A
I ,
Bf:
STOP
1
"\....
B
bl
MANUALLY
SELECTeD
BY
BL
ue
SH
IFT KEY F
OR
TOT MODE
Figure 3·3. Totalize Modes
3·27. CHECK
3·28, The Check function applies
10
M Hz
from
the internal (or external
for
53158
) reference
oscillator
to
the MRC. It
is
us
ed
to
verify the
ba
sic
operation
of
the counter,
GATE
light and
GATE
TI
ME control.
NOTE
Th
e Trigger
lights
for
INPUT A and INPUT
Bare
inoperative a
nd
extinguished
whe
n functions
FREQ
C
or
GATE
TIME are selec·
ted. This
is
a n
orm
al
indication.
3-29. Display C
he<:k
3·
30,
Th
e Di
sp
la
y Check
is
an unlabled functi
on,
whic
h cycles the display
through
a
routine
that
exercises all digits and most annunciators.
With
the POWER switch
to
ON,
and all function
sw
it
ches
to
the
"OU
T" position, a r
olling
displ
ay,
corresponding
to
Table 3-1, will resulr.
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