Dc Current Test; Ac Voltage Test; Calibration; 5- Introduction - Fluke 8600A Instruction Manual

8600A
Table
4-3.
OHMS PERFORMANCE
TEST
8600A
RANGE
INPUT
REQUIRED
8600A DISPLAY
LIMITS
AUTO
AUTO
AUTO
AUTO
AUTO
AUTO
AUTO
AUTO
SHORT
100.00ft
1
.OOOOkft
lO.OOOkft
lOO.OOkft
lOOO.Okft
lO.OOOMft
OPEN
00.00
to
00.03
99.87
to 100.13
.9989
to 1.0011
9.994
to
10.006
99.94
to
100.06
999.4
to 1000.6
9.979
to 10.021
18.888
Flashing
(20Mft
LED
lit)
4-20.
DC
Current Test
4-2
1
.
Using the dc
current calibrator
(check Table
4-
1
for correct calibrator) sequentially
apply the
values
of dc
current indicated
in Table
44
to the 8600A
MA
input
terminals and
select the ranges prescribed. The
8600A
should
display a reading
within the
indicated
limits.
Table
44. DC
CURRENT PERFORMANCE
TEST
RANGE
INPUT
READING
200
/r
A
200
mA
2
mA
20
mA
200
mA
2000
mA
Open
+1
90.00
pA
+1 .9000
mA
+19.000
m A
+190.00
mA
+1 .9000
A
-00.05
to
+00.05
+189.79
to
+190.21
+1.8979
to
+1.9021
+18.979
to +19.021
+189.79
to
+190.21
+1897.9
to
+1902.1
NOTE!
Because
the current measurements
of
ac
and
dc
are
made
using the
same
shunt
resistors;
a check
of ac current
is
not made.
4-22.
AC
Voltage
T
est
4-23.
Using
the
ac voltage calibrator,
apply the
ac
vol-
tages indicated
in Table
4-5 to
the
8600A
V-f2 input
ter-
minals and
select the ranges prescribed. The
8600A
should
display
a
reading within the indicated
limits.
4-24.
CALIBRATION
4-25.
Introduction
4-26
The 8600A
should be
calibrated every 6 months
or
whenever
repairs
have been
made,
to insure the
instrument
continues
to
operate
at
its
rated accuracy.
After
calibration
is
completed,
the
DC
current performance
test,
paragraph
4-20 should be run through
to verify the
functioning
and
accuracy of
the current
dividers.
The
calibration should
be performed under
the following
environmental conditons;
ambient temperature of
23°C
±5°C
and
a relative
humidity of
less
than 80%.
Refer
to Table 4-1 for
the
recommended
test
equipment.
Calibration adjustment
locations
are pictured
in
Figure
4-1. Perform
the follow-
ing preliminary
steps before
calibrating
the instrument.
a.
Remove
the
instrument from
the
case.
b. Connect
the
8600A
to the appropriate
(1
1
5V
ac or
230V
ac) line power.
c.
Turn
the instrument
on
and
allow
it
to
warm-up
for a
minimum
of
15 minutes.
d. Insure that the ac
and
dc
calibrators are up
to
their
normal
operating temperatures.
NOTE!
Use only
non-metalic
adjustment
tools.
Table
4-5.
ACV PERFORMANCE
TEST
8600A
RANGE
INPUT
REQUIRED
FRE-
QUENCY
Hz
8600A DISPLAY
LIMITS
200
mV
190.00
mV
70kHz
188.05
to
191.95
mV
200
mV
190.00
mV
500 Hz
189.46
to
190.54
mV
200
mV
39.00
mV
30 kHz
38.60
to 39.40
mV
2
V
1.9000
V
500 Hz
1.8959 to 1.9041
V
2
V
.9000
V
500
Hz
.8979
to
.9021
V
2
V
1
.9000
V
50
kHz
1.8900
to 1.9100
V
2
V
1.9000
V
100 kHz
1.8800
to
1.9200
V
2
V
1.0000
V
30 Hz
.9945
to
1.0055
V
20
V
19.000
V
500 Hz
18.959
to 19.041
V
20
V
19.000
V
70 kHz
18.800
to
19.200
V
200
V
190.00
V
500
Hz
189.59
to
190.41
V
200
V
100.00
V
30
kHz
99.45
to
100.55
V
1200
V
1000.0
V
500 Hz
996.9
to 1003.1
V
1200
V
1000.0
V
20
kHz
994.0
to
1006.0
V
4-27.
DC
Volts
Calibration
4-28
.
The
calibration
procedure
for the
DCV
FUNCTION
of the
8600A
is
presented
in Table 4-6. Use
the
recommended
dc
voltage calibrator
(see
Table
4-1) to apply the prescribed
dc
voltages to
the V-f2
INPUT
terminals and,
where
required,
make
the adjustments to meet
the
specified display
limits.
1/77
4-3