HP 5245L Service Manual

FREQUENC
Y
MEASUREMENTS
Range:
0 to 50
MHz
(dc
input).
25 Hzto 50
MHz
(ac
input,
maximum
sensitivity).
Gate Time:
l
prsec
to
l0seconds
indecade
steps.
Accuracy:
r
1 count r
time
base
accuracy
Reads
In: kllz
or
MHz
with
positioned
decimal
point;
units annunciator
in line
with
digital
display.
Self Check:
counts
10
MHz for the
gate
time
chosen
by
the time base
selector switch.
SCALING
Frequency
Range:
0 to 50
MHz.
Factor:
by decades
up
to 109,
switch selected
on rear
panel.
Input:
front
panel,
Signal Input.
Output: in
place
of time
base output f
requencies.
PE
RIOD
AVERAGE
MEASUREMENTS
Range: Single
Period
0 to 1 MHz
Multiple Period
0 to
300
kHz
Periods
Averaged:
1
period
to
105
periods
in
decade
steps.
Accuracy:
t 1
count t
time base accuracy r
trigger
error.
*
Frequency
Counted:
1
and
10
period
lKz
to 10
MHz
indecade
steps
100
period
.
10 Hz to 10
MHz
1, 000
period.
100
Hz
to
10
MHz
10, 000
period
1 kHz
to 10 MHz
100,
000
period
10 t<IIz
to
10
MHz
Reads
In:
sec, ms,
ps,
with
positioned
decimal
point;
units
annunciator
in
line
with
digitaf
display.
SeIf Check:
Gate
time
is
10ps
to1 sec
(periods
averagedof
100
kHz);
counts 100 kHzfromthe
time
base.
RATIO
MEASUREMENTS
Displays:
(ft/tZ)
times
period
multiplier.
Range: f1
-
0
to 50
MHz. fZ
-
0 to 1
MHz
in
single
period.
0 to
300
kHz
in
multiple
period;
periodi
averaged
1
to 105 in
decade
steps.
Sensltivity:
0.
1 v rms,
each
input.
xTrigger
erroris less
than
+0.370of
oneperiod
;
periods
averaged for
signals
rvith40db
or better
signal-to-noise
ratio.
r*
After
72
hours
of continuous
operation.
Accuracy:
+
1
count
9f
f1
r
trigger
error*
of fr.
f1
is
frequency
applied
to
the decimal
countels
(enters
Time
Base Ext.
jack
on front
panel);
f.2
is
frequency
applied
to
decade dividers
(enters
Signal Input
jack).
Reads
In:
Dimensionless; positioned
decimal
point
for
number
of
periods
averaged.
SeIf Check: Period
Average
Setf
Check
applies.
TIME
BASE
Frequency
(internal):
1
MHz.
Stability:
Aging
Rate
-
less
than 3
parts
in
109
per
24 hours.
r*
As
a Fupction
of
Temperature:
lessthan
12
parts
in 1010/'C
-20'C
to +55"C"
As
a
Function
of
Line
Voltage:
Iess
than
+
5
parts
in 1010
for +!\Vs
change
in line
voltage
from 115v
or 230
v rms.
Short Term
-
less
than
2
parts
in
1010
,*,
withmeasurement
averaging
timeof one
sec-
ond
under
constant
environmental
and line
voltage conditions.
Adjustment:
Fine
frequency
adjustment
(range
approximatety
4
parts
in
108)
and medium
frequency
a{justment
(range
approximately
1
part
in
10o) are
available
from
the front
panel
through
the
plug-in
hole. Coarse
fre-
quencJ
adjustment
(range
approximately
1
part
in
100) is
available
at
the rear
of the instru-
ment.
Output Frequencies:
Rear
Panel:
0. 1
Hz to 10
MHz
in
decade
steps; switch
selected on
rear
panel;
all
fre-
quencies
available
in
manual
function without
interruption
at
reset
except 100 Hz, l0
Hz, 1
Hz,
and
0" I
Hz
which are
interrupted
by
manual
reset; 10 kHz
to
10
MHz available
continuously in a1l
functions;
1
kHz
available
continuously for
all functions
except 100K
period
average;
stability same
as internal
time
base; 5 volts
p-p
rectangular wave
with 1000
ohm
source
impedance
at
1
MHz and
lower; 1
volt rms
sine
wavewith 1000
ohm
source im-
pedance
only
at 10
MHz.
Front Panel:
0.1H2 to
l
MHz
in decade
steps;
selected by Time Base
switch;
availability as
defined
under Output Frequencies
above;
sta-
bility
same as internal
time base;
I
v
p-to-p.
External
Standard Frequency: 1
MHz,
1
volt,
rms,
into
1000 ohms
required
at rear
panel
BNC
connector.
GENERAL
Registrqtion: 8
digits
in-line
with
rectangular
NixieQ
tubes and display storage;
99,999,
999
maximum
display; total width
of B digit
display
including
illuminated units annunciator
and
auto-positioned
decimal
point
indication
does
not exceed
? inches.
Section I
Table
1-1
Model
5245L
Table 1-1.
Specifications
r-2
02349-1

HP 5245L Specifications

General

Brand	HP
Model	5245L
Category	Cash Counter
Language	English