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Table
3.5
-
Time
Interval
Measurement
4.
5.
6
.
7.
Select the
X10
input attenuation
(0)
if
desired.
Attenuation
setting
is
automatic
in
the Auto-Trigger
mode.
Select the slope
0)
for
Inputs
A/B
as required.
If
the start
and
stop
signals
are
from
the
same
source, select
COM
A
(tei)
Connect
the start signal
to
INPUT
A
0).
If
a
separate source
for the
stop
signal
is
used,
connect
the stop signal
to
INPUT
B
0)
.
TI
B-*A
may
be
measured
using Special
Function
21.
Select
AUTO-TRIG
A/B
(
0
)
,
or set the trigger
levels
A/B
manually
using
key sequence
TRIG-LEVEL
0
)
+/-
(
0
)
<value>
TRIG-LEVEL
0
)
.
Check
that Inputs
A
and
B TRIG-LEDs (0)
flash.
Use
the
RESOLUTION
keys
(0
when
the display
resolution
will
exceed
3
digits
(100
ns).
NOTE;
The
1994
f
s
resolution
is
selectable
down
to
3 digits;
however,
the
counter
will
display
1
digit
when measurements
to
0
ns are
made.
9.
If
delayed
arming
of the stop circuit
is
required, enter the
delay
into
memory
using
key
sequence
<
value
>
SHIFT
(0
STORE
(0)
DELAY
(0).
Enable
the
delay
using
key
sequence
SHIFT
(0)
DELAY
0)
.
Refer
to
Subsection
3.4.5 for
explanation of
delayed
stop
arming.
8
.
3-24
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