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Model 5245L
PER;OR'f,ANCE
CHECK
TEST
CARD
Hewlett-Packard Model
Electronic
Counter
Serial
No.
5245L
Tests
performed
by
Date
Description
Check
A.
FREQUENCY
MEASUREMENTS.
1.
RAl.iGE: Dc coupled:
0
to
50 MHz
Ac coupled:
25
Hz
to
50
M.Hz
2.
GATE
TIME:
selectable
from 1ps to
10s.
ACCURACY:
+
1
count,
r
time
base
accuracy
OUTPUT
DISPLAY: 8 significant figures
with decimal
point
and
units of measure
(kHz
or
MHz)
SELF-CHECK:
counts
10
MHz
for
the
gate
time
chosen
by
the TIME BASE switch.
0
Hz
to
50 MHz
25
Hz
to
50 MHz
00000010.
0000010.
0
000010.00
00010000.
0010000.0
010000.00
10000.000
0000.0000
50MHzt
lcount
50
MHz
r
12 counts
00000010.
MHz
0000010.0
MHz
000010.00
MHz
00010000. kHz
0010000.0 kHz
010000.00 kHz
1000.0000
kHz
0000.0000 kHz
B.
SCALING.
1.
RANGE:
0
to
50 MHz
2.
FACTOR: by
decades up
to
109
TrME
BASE
OUTPUT
JACK
(J5)
10
MHz
in
10
MHz
10
position
1
MHz
in
1
MHz
192
position
100
kHz
in
100
kHz 10r position
10
kHz
in
10
kHz !04 position
1
kHz
in
1
kHz
10b
position
100
Hz
in
100
Hz
10o
position
10
Hz
in
10
Hz
^10
r
position
1
Hz
in
1
Hz
108
position
.
L
Hz
in
.
1
Uz
f
09
position
c.
PERIOD
MEASUREMENTS
1.
FREQUENCY
RANGE SINGLE
PERIOD:
0
to
1 MHz.
2.
FREQUENCY
RANGE
MULTIPLE
PERIOD:
0
to
300 kHz
SINGLE
PERIOD
MULTIPLE
PERIOD
1
PERIOD
AVERAGE
.1ps
1ps
10
p,t
.1ms
1ms
10 ms
.1s
1s
10s
0000003.
3
,us
00000003. ps
000000.00
ms
0000000.0
ms
00000000.
ms
000000.00
sec
0000000.0
sec
00000000.
sec
*
10 PERIOD AVERAGE
.1ps
1ps
10
lrt
.1ms
1ms
10 ms
.1s
10s
000003.33 ps
0000003.3 ps
00000003.
ps
000000.00
ms
0000000.0
ms
00000000.
ms
000000.00
sec
02349
-1
3-1la
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