5500A
Getting Started
10
5725A Amplifier
The Fluke 5725A Amplifier (Figure 5) 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.
F1-03.eps
Figure 5. 5725A Amplifier
Connecting the 5725A Amplifier
The 5500A provides an interface connection for the Fluke 5725A Amplifier. You
designate whether the 5500A or 5725A is the preferred source of current and voltage in a
calibrator setup menu (see 5500A Operator Manual Chapter 4, “Front Panel Operation”).
A single connection cable provides the complete link for analog and digital control
signals. Refer to the 5725A Instruction Manual for installation instructions (a copy is
provided on the CD-ROM you received with your 5500A).
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