HP 3455A - Page 45

Section
IV
Model 3455A
Table
4-6.
AC Accuracy Test 30 Hz te 100 kHz
(34SSA Option
001 onlyl.
Frequency
(ACV)
Frequency
(FAST ACV)
Input
Level
345SA
Range
24 Hour'
Test Limits
90 Day'
Tast
Limits
30 300 Hz 1 V
1
V 0
99460 to 1.00540
0.99430
to
1
00570
60
Hz
500
Hz 1 V 1 V 0.99630 to
1.00370
0 99600 to
1.00400
250 kHz 250
kHz 1
V
1
V 0
99240 to 1.00760 0.99190 to 1.00810
30
Hz 300 Hz 5V 10 V 4.969510 5.0305
4.9680
to 5.0320
100 kHz
100
kHz
5V
10
V
4.9930
to 5
0070 4 9925 to 5.0075
250 kHz 250 kHz 5V 10 V
4
9590 to
5.0410 4.9565
to
5.0436
30
Hz 300 Hz 10
V
10 V
9
9460
to
10.0540 9.9430 to 10.0570
100
Hz
1
kHz
10 V
10
V 9 9886 to 10.0115
9.9875
to
10.0125
100 kHz 100 kHz 10
V
10 V
99885 to
10.0115
9.987S
to 10.0125
30 Hz 300 Hz
100 V
100 V
99
460
to
100.540
99.430
to 100.570
100 kHz 100 kHz 100
V
100 V
99 885 to
100.115
99.87510 100.126
30
Hz
300 Hz 1000
V
lOOOV
994.60
to
1005.40
994.30
to
1005.70
10 kHz 10 kHz
1000 V
1000
V 998.75 to
1001.25 998 65 to
1001
.35
'These (est limits do not
include
the lemperaiuri coefficients that must be added
if
the instru-
ment is operated outside of the temperature range over which the 24 hour or
90-day
specifi-
cations
apply
(see Table
1-11.
Derive 6-month test
limits
from AC
Accuracy specifications
listed in Table T1
the meter of the Test Oscillator and use control
to
main-
tain
this
reading whenever
the frequency is
varied.
s. Repeat step
q.
t. Set the 3455A FUNCTION to ACV and RANGE
to 10
V. Remove
the 50-ohm termination from the Test
Oscillator’s output. Connect the 50-ohm output of the
Test Oscillator (unterminated) to the 3455A front panel
INPUT.
Set the Test Oscillator frequency to 10 kHz and
adjust its level controls
for the 5
volt
3455A reading
recorded
in step 1. Adjust the meter reference controls
for a
zero
reading on the meter of the Test Oscillator
and use the level controls
to
maintain
this reading
whenever
the frequency is varied.
u. I. Standard Model 3455A: Set the Test Oscillator
to each of the last
two
Test Frequencies listed
in
Table
4-5
(maintain reference level on meter of
Test Oscillator). At each
frequency setting, (he
3455A
reading should be within the Test Limits
given
in
the
table.
2. 345SA Option 001. Set the Test Oscillator fre-
quency to 250 kHz (maintain reference level on
meter of Test Oscillator). The 3455A display
reading should
be
between 4.9590 V
and 5.0410
V (24-hour spec.)
or
between
4.9565
V
and
5.0435 V
(90-day spec.).
v. Set the 3455A FUNCTION
to
FAST ACV.
Set the
Test Oscillator frequency to 10 kHz and
adjust
its level
controls for the 5 V 3455A reading
recorded in step m.
Adjust the meter reference controls for
a zero reading
on the meter of the Test Oscillator and use
the
level
con-
trols to maintain this reading whenever
the
frequency
is
varied.
w. Repeat
step u.
Table 4-7.
Two-Wira Ohm Accuracy TasL
Test
Limets
(High Ree. Onl
Decade
Resaloi
34S5A
Range
24 Hour* 90 Day
'
100 99.9971
to 100.0029 99 9995 to 100.0045
•These
test
limits
do not include the temperature
coefficients
that must
be
added if the instrument
it operated outside of the
temperature rar>ge over v^ich the 24-hour
or 90-day speciflca-
tiorts apply (see Table 1-1).
Derive 6-month test limits
from
Ohms Accuracy
specifications listed
In Table
1-1
.
X. This
completes
the AC
Voltmeter
Accuracy Test.
Disconnect
the Test Oscillator from the 3455A.
4-35.
Ohmmatar
Accuracy Tast
4-36. This
test
requires
a
ca/ibraret/ decade resistor with
settings that range from 100 ohms to 10 megohms. The
correction factors indicated on the
decade
resistor’s
calibration
chart
must
be
algebraically added to the
345SA display readings to achieve the required test ac-
curacy.
4-37.
Tast Pracadura.
Equipment Required;
Decade
Resistor (calibrated General Radio
Model I433Z)
a. Set the 3455A
controls as
follows:
FUNCTION
2
WIRE
K OHM
RANGE
100
HIGH RESOLUTION
ON
GUARD
ON
4-8