Alternate 250 Khz Acv Test; Acv Test Limits - HP 3456A Operating And Service Manual

Performance Test
k. Set the AC Calibrator for a I V, 20 Hz output and
turn the 3456A's Filter "ON". Record and check the
reading.
I.
Set the 3456A to the ACV + DCV function. Record
and check the reading. If any of previous tests fail, do
the ACV Adjustment in Section V. This completes the
ACV Test.
Altarnata kHz ACV Tnt
4·45. 250
4-46. The following test is an alternate 250 kHz test
which can be used with AC Calibrators that do not have
250 kHz output capabilities. Use a Test Oscillator, such
as the -hp- Model 652A, to do the alternate 250 kHz ac­
I
curacy test (specified for
accuracy is obtained by adjusting the oscillator until its
10 kHz output is the same as the AC Calibrator's
10 kHz output, as read on the 3456A. This reference
level is maintained by the Oscillator within
when set-up for a 250 kHz output (using the Oscillator's
expanded-scale meter).
4-47. Equipment Required.
AC Calibrator
Test Oscillator (-hp- Model 652A)
4-48. Test Procedure.
a. Press the 3456A's RESET button. Set the instru­
ment to the ACV function.
b. Set the AC Calibrator for a 1 V, 10 kHz output
and connect it to the 3456A's input terminals. Record
the reading.
c. Set the AC Calibrator for a 6 V, 10 kHz output.
Record the reading.
3456A
Frequency
Input
.01 V DC
.01 V AC
0 . 1 V AC
0 . 5 V AC
1 .0 V AC
10 V AC
100 V AC
700 V AC
.01 V AC 100 kHz
1 .0 V AC 100 kHz
10 V AC 100 kHz
100 V AC 100 kHz
700 V AC 100 kHz
1 . 0 V AC 250 kHz
1 0 V AC 250 kHz
1 . 0 V AC
1 . 0 V AC
4-10
V and 10 V ranges only). The
.25OJ o
±
Tabla
4·4.
3458A
3456A
Range
- - -
Autoranga ACV + DCV
1 kHz Autorange
1 kHz Autorange
1 kHz Autorange
1 kHz Autorange
1 kHz Autoranga
Autorange
1 kHz
1 kHz Autorange
Autorange
Autorange
Autorange
Autorange
Autofange ACV
Autorange
Autofange
20 Hz Autorange Filter On
20 Hz Autorange ACV+DCV
d. Disconnect the AC Calibrator from the 3456A.
e. Set the Test Oscillator for a I V, 10 kHz output
and terminate its output with a 50 ohm load. Connect
the Oscillator to the 3456A's input terminals.
f. Adjust the Test Oscillator's level controls for a
reading on the 3456A to the noted reading in Step b. Set
the Test Oscillator's meter switch to "expanded scale"
and adjust the meter reference controls for a zero
reading on the Oscillator's meter. Use the Oscillator's
level controls to maintain the zero reading when varying
the frequency.
g. Set the Test Oscillator for a I V, 250 kHz output
while maintaining the reference level on the meter.
Check and record the 3456A's reading.
h. Remove the 50 ohm termination from the Test
Oscillator and reconnect the Oscillator to the 3456A. Set
the Test Oscillator for a 6 V, 10 kHz output.
i. Adjust the Test Oscillator's level controls for a
reading on the 3456A to the noted reading in Step c. Set
the Test Oscillator's meter switch to "expanded scale"
and adjust the meter reference controls for a zero
reading on the Oscillator's meter. Use the Oscillator's
level controls to maintain the zero reading when chang­
ing the frequency.
j . Set the Test Oscillator for a 6 V, 250 kHz output
while maintaining the reference level on the meter.
Check and record the 3456A's reading.
k. Disconnect the Test Oscillator from the 3456A.
This completes the Alternate 250 kHz check.
ACV Tnt limit
•.
90
Sit-Up
DIY limits
.00928 to .01072
ACV
.00929 to .01071
ACV .09923 to . 10077
ACV .49895 to .50105
ACV
.99860 to 1.00140
ACV
9.9860 to 1 0 . 0 1 40
ACV 99.860 to 100.140
ACV 698.32 to 701.68
ACV .00704 to .01296
ACV
.99160 to 1 .00840
ACV
9.9160 to 10.0840
ACV 99.160 to 100.840
692.76 to 707.24
ACV
.94350 to 1 .05650
ACV 9.4350 to 10.5650
.99600 to 1 . 00400
.99600 to 1 . 00400
Model 3456A
24 Hour limit.
.00943 to .01057
.00944 to .01056
.09944 to . 0060
I
.49920 to .50080
.99895 to 1 .00105
9.9895 to 10.0105
99.895 to 1 0 0 . 1 0 5
698.61 to 7 0 1 . 3 9
.00725 to . 0 1 2 7 5
.99200 to 1 .00800
9.9200 to 1 0.0800
99.200 to 1 00.800
693. 0 to 706.90
I
.94370 to 1 .05630
9.4370 to 1 0.5630
.99640 to 1 .00360
.99640 to 1 .00360