Fluke 5500A, Service Manual

Page: 69 / 296

Calibration and Verification
Calibration
3
3-15
3-17. NORMAL Volts and AUX Volts Phase
NORMAL volts and AUX volts phase calibration is only accessible by remote
command. See “Remote Commands for 5500A Calibration,” later in this chapter. In
remote, you can jump to NORMAL volts and AUX volts phase calibration by sending
the command:
CAL_START FACTORY,PHASE
Measure with a phase meter of suitable accuracy as shown in Figure 3-7. Enter into the
5500A the measured values when prompted.
The 5500A outputs the voltages shown in Table 3-10. The 5500A is automatically set to
LOs open.
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
5500A
Clark-Hess
Phase Meter
NORMAL
Output
Terminals
AUX
Output
Terminals
Reference
Terminals
Signal
Terminals
om014f.eps
Figure 3-7. Normal Volts and AUX Volts Phase Calibration
Table 3-10. Normal Volts and AUX Volts Phase Calibration Steps
Reference Signal
Step NORMAL Output AUX output Frequency (0
° φ
)
1 3.00 V 300 mV 10 kHz
2 3.00 V 3.00 V 10 kHz
3-18. Volts and AUX Current Phase
The 5500A outputs the voltages and currents shown in Figure 3-8. The 5500A is
automatically set to LOs open. You need to externally connect the NORMAL LO and
AUX LO. To measure the phase, connect a 0.1
Ω
, 1.0 W low-inductive shunt directly
across the AUX terminals and sense the voltage there with a phase meter of suitable
accuracy. Table 3-11 shows the steps in this procedure. In remote, you can jump to
NORMAL volts and AUX current phase calibration by sending the command:
CAL_START FACTORY,IPHASE