Boonton 4540 Peak Power Meter Quick Start User Manual

Page 7

4540 Power Meter

Quick Start Guide

PN: 98406000A

Page 7

Menu / Menu Off
Places the instrument in Menu Mode to allow navigation of the menu
structure. Menu soft keys appear at the right side of the screen. Pressing
and holding Menu / Menu Off while already in Menu Mode switches the
menu display off and provides larger screen area for measurements, thus
allowing larger display in text mode and higher resolution in graph mode.

Graph / Text
Pressing Graph / Text places the instrument in Graph Mode to display the
current measurement waveforms (traces) in a graphical format. Pressing
Graph / Text

while in Graph Mode toggles to numeric/text display of the

measurement.

Cal / Zero
Places the instrument in Sensor Zero/Calibration Mode and displays a menu to allow
automatic sensor offset and gain adjustments using the built-in 50MHz calibrator or
an external calibrator, as well as to permit control of the internal or external
calibrator.

• Pressing the Cal / Zero key displays the sensor calibration menu for the most

recently active calibration channel, or the first active channel. If no channels
are active, the menu defaults to Channel 1.

• Pressing the key again will display the menu for the next active channel, if

any.

A channel is considered “active” if it is installed in the instrument and a sensor is
connected. The calibration menu contains soft keys for sensor Zero, Fixed cal or
Autocal, as well as submenus to permit selection and control of the built-in or
external RF calibrator

Enter / Run
Activates a menu selection or completes update of a parameter in Menu Mode or
Zero/Cal Mode. Pressing Enter/Run while stopped in measurement mode will start
(or restart) the measurement process.

Pressing the Enter / Run key performs ONE of the following prioritized operations,
depending upon the current instrument state. The list is evaluated from the top, and
once a condition is met, its action is taken and the rest of the list is ignored.

• Completes a numeric or menu pick list entry that is in progress
• Starts measurement acquisition if stopped
• Clears and restarts measurement acquisition if already running