Acv Test And Adjustment Limits - HP 3456A Operating And Service Manual

Model 3456A
m. Set the 3456A to the 4-Wire Ohms function and
the 100 K ohm range. Connect the 10 K ohm resistor to
the input terminals and check the reading.
n. Disable the 3456A's Autozero feature. Check the
reading.
o. Set the 3456A to the 2-Wire O.C. Ohms function
and enable the Autozero feature. Connect the 100 K
ohm resistor to the input terminals and check the
reading.
p. Set the 3456A to the 4-Wire O.C. Ohms function.
Check the reading.
Disconnect the 100 K ohm resistor from the
Q.
3456A. This completes the Ohms Test and Adjustments.
5·31. ACV Tnt and Adjultments.
5-32. Refer to Table 5-4 for the ACV Test and Adjust­
ment Limits.
5-33. Equipment Required.
AC Calibrator (Fluke Model 5200AI5215A)
DC Standard (Systron Donner Model M107)
5-34. Test and Adjustment Procedure.
a. Press the 3456A's RESET button. Set the instru­
ment to the ACV function.
I .,.,
.""
,
2
3
•
5
•
7 .01 V DC
.01 V. 1 kHz
8
•
' 0
"
, 2 1 0 V, 1 kHz
' 3 100 V, l kHz
, . 700 V, 1 kHz
1 5 .01 V, 100 kHz
, .
1 7 1 0 V. l 00kHz
1 0 0 V . l 0 0 kHz
, a
700 V. l 00kHz
, .
20
2 ' 1 0 V. 250 kHz
22
23
2. .01 V DC to
REF H to V H
andREF l to V l
Table 5-4. ACV Tnt and Adjultment limits.
3UIA Stt·Up
,
't .., C ..
Open Press AESET
l V. l kHz ACV. lOO V Aenge
I V. 1 kHz I V Range
l V, l kHz I kV Range
Shon ACV + DCV, I V Range
Short ACV
ACV + DCV, Aut01'ange
ACV
. 1 V. l kHz ACV
. 5 V. l kHz ACV
I V, 1 kHz
ACV
ACV
ACV
ACV
ACV
1 V, 1 00kHz ACV
ACV
ACV
ACV
I V. 2 5 0 kHz ACV
ACV
I V. 20 Hz Filter On
I V, 20 Hz ACV+DCV
Filler Off
ACV + DCV/OCV Ratio
b. Set the AC Calibrator for a I V, 1 kHz output and
connect it to the 3456A's input terminals.
c. Set the 3456A to the
tion pot "K" for a 01.000
d. Set the 3456A to the I V range and adjust calibra­
tion pot "L" for a 1 .0000 0
e. Set the 3456A to the 1000 V range and adjust either
calibration pot "M" or "Nil for a 001.00
reading.
f. Repeat Steps c, d, and e in the given order until all
the readings are within the limits.
Calibration pots "KO,
interact with each other and should be ad­
justed until /he readings converge.
g. Disconnect the AC Calibrator from the 3456A.
Short the 3456A's input terminals.
h. Set the 3456A to the ACV + DCV function and the
I V range. Adjust calibration pot
reading.
i. Set the 3456A to the ACV function and do the
following:
I. Note the 3456A's displayed reading.
AIfj .. t
fI,mtiN
.�
- - -
K
00.999 1001 .001
L .99997 10 1 .00003
M or N 000.98 to 001 .02
N Minimum
:!: 2 counts of reading in Step 5
M
- - -
.00943 to .01057
- - -
.00944 to .0 I 056
- - -
.09940 to . 1 0060
- -
-
.49920 to .50080
- - -
.99895 to 1 .00105
- - -
9.9895 to 10.0105
- - -
99.895 to 100.105
- - -
698.61 to 701.39
- - -
.00725 to . 0 1 2 7 5
- - -
.99200 to 1 . 00800
- - -
9.9200 to 10.0800
- - -
99.200 to 100.800
- - -
693.10 to 706.90
- - -
.94370 to 1 .05630
- - -
9.4370 to 1 0.5630
- - -
.99640 to 1 .00360
- - -
.99640 to 1 .00360
- - -
.99889 10 1 .001 1 1
Adjustments
lOO
V range. Adjust calibra­
± I
count reading.
3 counts reading.
±
±
2 counts
NOTE
"L
", and " M or N"
"Nil
for a minimum
Tnt ll.lb
- -
-
S-9