Introduction and Specifications
5725A Amplifier 1
1-7
• Operator maintenance, including verification procedures and calibration approach for
the 5500A
• Oscilloscope Calibration Option
• Accessories
1-10. 5500A Operator Reference Guide
The 5500A Operator Reference Guide contains a summary of operating instructions, and
a front panel and rear panel feature reference.
1-11. 5500A Remote Programming Reference Guide
The 5500A Remote Programming Reference Guide contains a summary of remote
commands and reference information useful in determining system status using the status
byte and related registers.
1-12. 5500A Service Manual
The 5500A Service Manual can be ordered through your local Fluke Sales or Service
representative (see “Service Information” in Chapter 2). The 5500A Service Manual
includes: theory of operation, performance testing, maintenance, calibration,
troubleshooting, parts lists, and schematic diagrams.
1-13. 5725A Amplifier
The Fluke 5725A Amplifier (Figure 1-3) is an external unit operating under 5500A
control to extend the Volts x Hertz and voltage compliance of the calibrator. The
amplifier adds the following capabilities with no compromise in accuracy:
Frequency Increase to 100 kHz at 750 V, 30 kHz at 1020 V.
AC Voltage Load limit extended to 70 mA for frequencies above 5 kHz, and to 50 mA
for frequencies less than 5 kHz. Capacitive drive increases to 1020 pF, subject to the
maximum output current, for volts ac.
AC Current 11 A load limit extended to 10 kHz, with a 3-volt drive compliance.
A separate set of binding posts on the front panel of the 5725A supplies extended
capability. Since most meters have a separate input terminal for the high current ranges,
this eliminates the need to change cables during a procedure.
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