Fluke 5500A, Service Manual

Page: 205 / 296

SC300 Option
Calibration and Verification of Square Wave Functions
6
6-79
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
HP 3458A 5500A-SC300
SC300 Cable
50
Ω
Feedthrough
Termination
BNC(F) to
Double Banana
Adapter
om062f.eps
Figure 6-19. Equipment Setup for SC300 Square Wave Measurements.
For all measurements, the HP 3458A is in DCV, manual ranging, with level triggering
enabled. A convenient method to make these measurements from the HP 3458A’s front
panel is to program these settings into several of the user defined keys on its front panel.
For example, to make topline measurements at 1 kHz, you would set the DMM to
“NPLC .01; LEVEL 1; DELAY .0002; TRIG LEVEL”. To find the average of multiple
readings, you can program one of the keys to “MATH OFF; MATH STAT” and then use
the “RMATH MEAN” function to recall the average or mean value. Refer to Figure 6-19
for the proper connections.
6-104. DC Voltage Calibration
This procedure uses the following equipment:
•
Hewlett-Packard 3458A Digital Multimeter
•
50
Ω
feedthrough termination (as required in the calibration procedure)
•
Shorted Dual Banana Connector
•
BNC(f) to Double Banana adapter
•
BNC cable supplied with the SC300
Note
Full calibration of the Voltage Function requires both dc and ac
calibration.
Refer to Figure 6-19 for the proper setup connections.
Set the Calibrator Mainframe in Scope Cal mode, DC Voltage section. Follow these
steps to calibrate DC Voltage:
1. Connect the Calibrator Mainframe’s SCOPE connector to the HP 3458A input, using
the BNC cable and the BNC(f) to Double Banana adapter.
2. Set the HP 3458A to DCV, Auto Range, NPLC = 10, FIXEDZ = on.
3. Press the GO ON blue softkey.