Introduction - Fluke 5725A Getting Started

Introduction

The Fluke 5725A Amplifier enhances the 5700A
Calibrator in the ac voltage, ac current, and dc current
functions. The 5725A operates under complete control of
the 5700A through an interface cable supplied with the
5725A.
Figure 1 illustrates the extended ac volt-hertz product
achieved by using a 5725A. Increased ac voltage load
limits allow using the 5700A Calibrator in systems with
long cables.
Voltage output from the 5725A is available at the 5700A
Calibrator front or rear binding posts. This eliminates the
need to move cables during a procedure that requires
amplified as well as standard calibrator outputs.
The 5725A front or rear-panel OUTPUT binding posts are
only for current output. Extended-range ac and dc current
Getting Started
is supplied through them. Since most meters with a high-
current range use a separate high-current input terminal,
this configuration normally eliminates the need to move
cables during a procedure. If a single-point current output
is needed, the 5700A Calibrator can be configured to
source all current outputs through the 5725A binding
posts.
Enhancements to 5700A ac voltage output capability
provided by the 5725A are as follows:
•
Frequency limits at higher voltage increase to 100
kHz at 750V, 30 kHz at 1100V.
•
Load limits are to 70 mA for frequencies above 5
kHz, and to 50 mA for frequencies less than 5 kHz.
•
Capacitive load limits are increased to 1000 pF.
Model 5725A operating functions and ranges are as
follows:
1