5520A
Operators Manual
1-4
Features of the 5520A Calibrator include the following:
• Automatic meter error calculation.
• X and D keys that change the output value to pre-determined cardinal values
for various functions.
• Programmable entry limits that prevent invalid amounts from being entered.
• Simultaneous output of voltage and current, up to an equivalent of 20.9 kW.
• Pressure measurement when used with Fluke 700 Series pressure modules.
• 10 MHz reference input and output. Use this to input a high-accuracy 10 MHz
reference to transfer the frequency accuracy to the 5520A, or to synchronize one or
more additional 5520As to a master 5520A.
• Simultaneous output of two voltages.
• Extended bandwidth mode outputs multiple waveforms down to 0.01 Hz, and sine
waves to 2 MHz.
• Variable phase signal output.
• Standard IEEE-488 (GPIB) interface, complying with ANSI/IEEE Standards
488.1-1987 and 488.2-1987.
• EIA Standard RS-232-C serial data interface for printing, displaying, or transferring
internally stored calibration constants, and for remote control of the 5520A.
• Pass-through RS-232-C serial data interface for communicating with the Unit Under
Test (UUT).
1-2. Operation Overview
The 5520A Calibrator may be operated at the front panel in the local mode, or remotely
using RS-232 or IEEE-488 ports. For remote operations, several software options are
available to integrate 5520A operation into a wide variety of calibration requirements.
1-3. Local Operation
Typical local operations include front panel connections to the Unit Under Test (UUT),
and then manual keystroke entries at the front panel to place the calibrator in the desired
output mode. The front panel layout facilitates hand movements from left to right, and
multiply and divide keys make it easy to step up or down at the press of a single key.
You can also review 5520A Calibrator specifications at the push of two buttons. The
backlit liquid crystal display is easy to read from many different viewing angles and
lighting conditions, and the large, easy-to-read keys are color-coded and provide tactile
feedback.
1-4. Remote Operation (RS-232)
There are two rear-panel serial data RS-232 ports: SERIAL 1 FROM HOST, and
SERIAL 2 TO UUT (Figure 1-2). Each port is dedicated to serial data communications
for operating and controlling the 5520A during calibration procedures. For complete
information on remote operations, see Chapter 5.
The SERIAL 1 FROM HOST serial data port connects a host terminal or personal
computer to the 5520A. You have several choices for sending commands to the 5520A:
you can enter commands from a terminal (or a PC running a terminal program), you can
write your own programs using BASIC, or you can run optional Windows-based
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