5520A
Service Manual
3-8
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
5520A
CALIBRATOR
HP3458A
Set the HP3458A
to external guard
752A
UUT
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
yg103f.eps
Figure 3-2. Connections for Calibrating DC Volts 30 V and Above
3-7. AC Volts Calibration (NORMAL Output)
The equipment listed in Table 3-4 is required for calibration of the ac volts function. (The
equipment is also listed in the consolidated table, Table 3-1.)
Table 3-4. Test Equipment Required for Calibrating AC Volts
Quan. Manufacturer Model Equipment
1 Fluke 5500A/LEADS Test lead set
1 Fluke PN 900394 Type N to dual banana adapter
1 Fluke 5790A AC Measurement Standard
Proceed as follows to calibrate the ac voltage function:
1. Measure the 5520A output using Input 1 of a Fluke 5790A AC Measurement
Standard. Use a Type N to dual banana adapter as Figure 3-3 shows.
2. Enter the measured values into the 5520A for each step in Table 3-5 as prompted.