f.
Sequentially select the 200, 20 and 2
kn range.
d. Execute and verify steps
2
through
7
of Table 4-3
The decimal point should appear in the tenths,
using the procedure described in step c.
hundredths and thousandths position, respec
-
tively.
Table
4
-
3.
DC Voltage Checks
I
4
-
27.
Resistance/Conductance Test
4
-
28. The operation and accuracy of the resistance
and conductance ranges are tested in the following
procedure.
a.
Connect the decade resistor between the
V/KR
and COMMON input terminals.
b.
Refer to Table
4
-
2,
and select the range and
input conditions specified in step
I.
Verify that
the display reading is within the limits shown.
STEP
1
2
3
4
5
6
7
c.
Execute and verify steps 2 through 10 of Table
4
-
2
using the procedure described in step b.
Table
4
-
2.
Resistance/Conductance Checks
VOLTAGE
RANGE
200 rnV
200 rnV
2v
2V
20V
200V
1 OOOV
4
-
29.
DC
Voltage Test
INPUT
VOLTAGE, DC
S190.0 rnV
-
190.0 rnV
0.OV
+1.9V
+19V
+190V
+I
000V
4
-
30. Use the following procedure to check the
accuracy and overall operation of the dc voltage ranges.
DISPLAY
READING
189.4
to
190.6
-
189.4
to
-
190.6
-.001
to
.001
1.894
to
1.906
18.94
to
19.06
189.4
to
190.6
997
to
1003
STEP
1
2
3
4
5
6
7
8
9
10
WARNING
INPUT
RESISTANCE
Short
Short
1 9on
1.9 kn
19 kn
190 kn
1900 kn
10 Mn
10 Mn
Open
RANGE
200n
2 kn
200n
2 kn
20 kn
200 kn
2000 kn
20Mn
200
nS
200nS
CONNECT THE GROUND/COMMON/LOW
SIDE OF THE VOLTAGE CALIBRATOR TO
COMMON ON THE
8020A.
DISPLAY
READING
00.0
to
00.2
00.0
to
00.1
189.1
to
190.9
1.895
to
1.905
18.95
to
19.05
189.5
to
190.5
1895
to
1905
9.80
to
10.20
97.0
to
103.0
01.0
to
00.0
a.
Set the dc voltage calibrator for a zero volt
output.
b.
Connect the calibrator output to the
V/KR and
COMMON input terminals of the
8020A
(calibrator ground/common/low to 8020A).
c. With reference to Table 4
-
3 select the 8020A
voltage range given in step
1,
and set the
calibrator output to the corresponding
8020~
input voltage. Verify that the display reading is
within the limits shown.
4
-
31.
AC
Voltage Test
4
-
32.
The ac voltage ranges are checked for accuracy
and operation using the following procedure.
WARNING
CONNECT THE
GROUND/COMMON/LOW
SlDE OF THE AC CALIBRATOR TO COM
-
MON ON THE 8020A.
a.
Set
the ac calibrator for a zero volt ac output.
b. Connect the calibrator output to the
V/KR
and
COMMON input terminals for the.
8020A
(calibrator ground/common/ low to 8020A
COMMON).
c.
With reference to Table 4
-
4 select the 8020A
voltage range given in step
1,
and set the
calibrator output to the corresponding
8020A
input voltage and frequency. Verify that the
display reading is within the limits shown.
d.
Execute and verify steps 2 through 12 of Table
4
-
4 using the procedure described in step c.
Table
4
-
4.
AC Voltage Checks
STEP
1
2
3
4
5
6
7
8
9
10
11
12
VOLTAGE
RANGE
200 rnV
200 mV
200 rnV
200
rnV
2V
2V
20V
20V
200V
200V
750V
750V
DISPLAY
READING
00.0
to
00.2
188.4
to
191.6
18.7
to
19.3
180.0
to
199.9
1
.800
to
1.999
1.884
to
1.916
18.84
to
19.16
18.00
to
19.99
186.9
to
193.1
188.4
to
191.6
741
to
759
741
to
759
INPUT
VOLTAGE
Short
190 mV
19 mV
190 mV
1.9V
1.9V
19V
19V
190V
190V
750V
750V
FREQ.
-
100 Hz
100 Hz
5
kHz
5 kHz
100 Hz
100 Hz
5 kHz
2 kHz
100 Hz
100 Hz
1
kHz
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