Linear Voltage Test; Resistance And Conductance Tests - Fluke 8050A Instruction Manual

MAINTENANCE
LINEAR
VOLTAGE
TEST
STEP
SELECT RANGE
INPUT
DISPLAY READING
LEVEL FREQUENCY
Short
Circuit Below
-75
dB
2
200
mV
dB
10.00
mV
ac
rms 100
Hz
-37.28
to
-38.28
3
10.00
mV
ac
rms
10kHz
-37.28
to
-38.28
4
1
.OOOOV
ac
rms 100
Hz
+02.07
to
+02.37
5.
Disconnect the
DMM
Calibrator
from
the
8050A.
6.
On
the 8050A,
set
the
POWER
switch
to
OFF.
7.
Set the
REF
Z
switch to
ON
(in).
8.
On
the
8050A,
set
the
POWER
switch
to
ON
and
verify that the display reads
600 (the
default reference
impedance)
for 3 seconds,
then sequences through
all
stored reference
values
at
a I-second
rate.
Stored
reference
impedances
are: 50, 75, 93, 110, 125, 135, 150,
250, 300, 500, 600, 800,
900, 1000, 1200,
and
8
(
000
).
NOTE
If
the default reference
impedance of
Step
8
is
not
600, refer to
the
dB
Reference
Impedance
Power Up
Setting
procedure
and
check
if
the
default reference
impedance
has been
changed.
9.
This concludes
the
dB
Voltage
Test,
remove
power from
the
DMM
Calibrator before
dismantling the
test setup.
4-38.
Current Test
4-39.
Use
the following procedure
to verify the
proper
operation of the ac
and
dc current
measurement
functions:
1.
Select the
DC mA
function.
2.
Connect
the
DMM
Calibrator
to
the
8050A
as
follows:
HI
to the
mA
input
connector and
LO
to the
COMMON
input connector.
3.
For each
step
in
Table
4-6, select the
range
shown and
adjust the
DMM
Calibrator
to the
required
8050A
current input, then
verify that
the
8050A
display
reading
is
within the
limits.
4.
Select the
AC
V
function,
20mA
range.
5.
Adjust
the
DMM
Calibrator
for
an output
19.000
mA,at
a frequency of lOOHz.
6.
Verify
that the display reads
between
18.800
and
19.200.
7.
This concludes
the
Current
Test.
Remove
power from
the
DMM
Calibrator before
dismantling the
test
setup.
Table
4-6. Current Test
STEP
SELECT
RANGE
INPUT
DISPLAY
READING
1
200
mA
190
mA
189.41
to
190.59
2 2
mA
1.9
mA
1.8941
to
1.9059
3 20
mA
19mA
18.941
to
19.059
4
200
mA
190
mA
189.41
to
190.59
5
2000
mA
1900
mA
1894.1
to
1905.9
4-40.
Resistance
and Conductance
Tests
4-41.
Use
the following procedure
to verify the
proper
operation
of the resistance and conductance
measurement
functions:
1
.
Select the
kO
function,
2000.
2.
Connect
the
DMM
Calibrator to the
8050A
as
follows:
HI
to the
V/ kO/
S input connector and
LO
to the
COMMON
input connector.
3.
For
each
step
in
Table
4-7, select
the range
shown
and
adjust the
DMM
Calibrator to
the
required
8050A
resistance input, then
verify
that the
8050A
display reading
is
within the
limits.
4.
This concludes
the Resistance
and
Conductance
Tests.
Remove
power from
the
DMM
Calibrator before dismantling the
test
setup.
4-7