Ac Voltage Frequency Verification - Fluke 5500A Service Manual

5500A
Service Manual

6-50. AC Voltage Frequency Verification

This procedure uses the following equipment:
•
•
PM 6680A
Set the Calibrator Mainframe to SCOPE mode, with the Volt menu on the display. Press
O on the Calibrator Mainframe to activate the output. Then follow these steps to
verify AC Voltage frequency.
1. Set the PM 6680's FUNCTION to measure frequency on channel A with auto
2. Using the BNC cable, connect the SCOPE connector on the Calibrator Mainframe to
3. Program the Calibrator Mainframe to output 2.1 V at each frequency listed in Table
4. Allow the PM 6680 reading to stabilize, then record the PM 6680 reading for each
Calibrator Mainframe
Frequency
(output @ 2.1 V p-p)
10 Hz
100 Hz
1 kHz
10 kHz
6-34
PM 6680 Frequency Counter with an ovenized timebase (Option PM 9690 or PM
9691)
BNC cable supplied with the SC600
Figure 6-6. AC Voltage Frequency Verification Setup
trigger, measurement time set to 1 second or longer, 1MΩ impedance, and filter off.
PM 6680 channel A.
6-23.
frequency listed in Table 6-23. Compare to the tolerance column of Table 6-23.
Table 6-23. AC Voltage Frequency Verification
PM 6680 Reading
(Frequency)
SC600 Cable
At 50 MHZ
0.000025 Hz
0.00025 Hz
0.0025 Hz
0.025 Hz
5500A-SC600
5500A CALIBRATOR
SCOPE
NORMAL AUX
200V PK
A, -SENSE,
V, ,
MAX
AUX V
RTD
HI
1000V 20V
RMS RMS
MAX MAX
TRIG
LO
OUT
1V PK
MAX
20V PK
MAX
TC
20V PK
MAX
Tolerance
om057f.eps