Fluke 5520A - Page 69

Calibration and Verification
Calibration
3
3-13
Table 3-9. Calibration Steps for DC Current
Step 5520A Output (AUX HI, LO) Shunt to Use
1 300.000 µA Fluke 742A-1k 1 kΩ Resistance Standard
2 3.00000 mA Fluke 742A-100 100 Ω Resistance Standard
3 30.000 mA Fluke 742A-10 10Ω Resistance Standard
4 300.000 mA Fluke 742A-1 1 Ω Resistance Standard
5 2.00000 A Guildline 9230 0.01 Ω shunt
20A, LO
6 10.0000 A Guildline 9230 0.01 Ω shunt
AUX
output
terminals are used for
steps 1-5. 20A terminal
is used for step 6.
HP3458A
Current shunt
POWER
I
O
0•
123
456
789
ENTER
M
k
m
VHz
FIELD
EDIT
/
+
F
OPR EARTH SCOPE BOOST MENU
PREV
SHIFT
RESET
CE
SETUP
REF
NEW
TC
MEAS
¡F
µ
n
p
W
dBm sec
¡CA
MULT
x
DIV
÷
OUT
TRIG
5520A
CALIBRATOR
STBY
HI
LO
TRIG
GUARD
TC
20A
1000V
RMS
MAX
20V
RMS
MAX
20V
PK
MAX
1V PK
MAX
SHELLS
NOT
GROUNDED
NORMAL AUX
SCOPE
OUT
V, , ,
RTD
A, -SENSE,
AUX V
150V
PK
MAX
20V
RMS
MAX
20V PK MAX
20V PK MAX
Set the HP3458A
to external guard
yg106f.eps
Figure 3-6. Connections for Calibrating DC Current