Fluke 5520A - Page 144

5520A
Operators Manual
4-64
7. Test the Ohms function as follows:
a. Press Ron the calibrator and set the DMM function switch to s.
b. Set the calibrator to 190.0 Ω with 2-wire compensation (see Figure 4-3). Press
O. Verify the error is within specifications.
c. Repeat the previous step for 19.00 kΩ, 1.900 MΩ, and 19.00 MΩ. Verify the
errors are within specifications.
d. Press RANGE on the DMM to enter the 40-nS range, used for conductance tests
of high resistances.
e. Set the calibrator output to 100 MΩ. Verify the error is within specification.
8. Test the capacitance function as follows (use the REL feature of the 80 Series to
subtract cable capacitance):
a. Press R on the calibrator and set the DMM function switch to s and
press the blue key.
b. Set the calibrator output to 1.0 µF with compensation off. Press O. Verify the
error is within specification.
c. Repeat the previous step using 0.470 µF, 0.047 µF, and 4.70 nF. Verify the
errors are within specifications.
9. Test the Diode Test function as follows:
a. Press R on the calibrator and set the DMM function switch to t.
b. Set the calibrator to 3.0 V dc and press O. Verify the error is within
specification.
10. Test the ac and dc current function:
a. Press R on the calibrator and set the DMM function switch to u.
b. Verify that the calibrator is in standby and connect the DMM as shown in
Figure 4-19.
HI
LO
TRIG
GUARD
TC
20A
NORMAL AUX
SCOPE
OUT
V, , ,
RTD
A, -SENSE,
AUX V
20V PK MAX
20V PK MAX
5520A
CALIBRATOR
87
TRUE RMS MULTIMETER
MIN MAX
RANGE HOLD
H
REL Hz
mA
A
A
µ
mV
V
V
OFF
A
COM
V mA A
PEAK MIN MAX
nn047f.eps
Figure 4-19. Cable Connections for Testing an 80 Series Current Function