Fluke 5500A, Service Manual, Page: 61 / 296

Calibration and Verification
Calibration
3
3-7
3-9. DC Current
Use a precision DMM and appropriate precision shunts to measure the 5500A output as
Figure 3-2 shows. Enter into the 5500A each of the measured values listed in Table 3-4
when prompted to do so.
POWER
I
O
0 •
1 2 3
4 5 6
7 8 9
ENTER
M
k
m V Hz
FIELD
EDIT
/ +
F
OPR EARTH SCOPE BOOST MENU
PREV
SHIFT
RESET
CE
SETUP
REF
NEW
TC
MEAS
¡F
µ
n
p
W
dBm sec
¡C A
MULT
x
DIV
÷
OUT
TRIG
5500A CALIBRATOR
20V PK
MAX
HI
LO
TC
TRIG
OUT
1000V
RMS
MAX
20V
RMS
MAX
1V PK
MAX
20V PK
MAX
NORMAL AUX SCOPE
V, ,
RTD
A, -SENSE,
AUX V
200V PK
MAX STBY
5500 A
HP3458 DCV Function
Current Shunt
AUX
Output
Terminals
om009f.eps
Figure 3-2. Connections for Calibrating DC Current
Table 3-4. DC Current Calibration Steps
Step 5500A Output
(AUX)
Shunt Value
1 3 mA 742A-100
Ω
2 30 mA 742A-10
Ω
3 300 mA 742A-1
Ω
4 2 A Y5020, 0.01
Ω
5 10 A Y5020, 0.01
Ω