HP 5308A Operating And Service Manual page 23

75 mhz timer/counter
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Model 5308A
Operation
1 (REAR)
7 (REAR}
29
6
7
5
3
4
5
6
SEE WARNING
ON PAGE 9H-3-11
1. Connect
ac
power
to 5300B
ac receptacle.
NOTE
2. Turn ac power on with 5300B SAMPLE RATE
When the SEP-CHK-COM B switch is set
control.
.
to COM B, only the CHAN B ATTENUA-
TORS and AC-DC switches are effective.
NOTE
However, both of the LEVEL controls and
There must be at least 200 ns between the
slope switches are effective.
STOP pulse and the next START pulse.
When
measuring
the
time
interval
between the same polarity slope of two
6. Set ATTENUATORS
to X10; AC-DC switches
pulses from a single source, the PER B
and slope control switches to settings desired.
the LEVEL
A and LEVEL
B controls to the
illuminates.
If the desired
trigger
level
is
known, connect
a DVM
to the TRIG LEVEL
for the desired trigger level. If necessary, set
the ATTENUATORS
switches to X1.
5.
If the Start and Stop signals are from sepa-
rate
sources
connect
the
Start
signal
to
8.
Adjust SAMPLE
RATE
for desired display
CHAN A connector. Connect the Stop signal
time.
to CHAN B connector and set the SEP-CHK-
l
NOTE
COM B to SEP. If the Start and Stop signals
are
from
a
common
source
connect
to
For greater resolution of time interval
CHAN
B connector and set the SEP-CHK-
measurements
refer
to
Figure
9H-3-10
COM B to COM B.
for time interval average measurements.
Figure 9H-3-9.
Making Time Interval Measurements
9H-3-13

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