Keysight Technologies 33502A User manual

Keysight 33502A
2-Channel Isolated Amplifier
User/Service Guide
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

Notices
Copyright Notice
© Keysight Technologies 2009-2017
No part of this manual may be repro-
duced in any form or by any means
(including electronic storage and retrieval
or translation into a foreign language)
without prior agreement and written con-
sent from Keysight Technologies as gov-
erned by United States and international
copyright laws.
Manual Part Number
33502-90001
Edition
Edition 3, April 4, 2017
Printed in:
Printed in Malaysia
Published by:
Keysight Technologies
Bayan Lepas Free Industrial Zone,
11900 Penang, Malaysia
Technology Licenses
The hardware and/or software described
in this document are furnished under a
license and may be used or copied only in
accordance with the terms of such
license.
Declaration of Conformity
Declarations of Conformity for this prod-
uct and for other Keysight products may
be downloaded from the Web.
U.S. Government Rights
The Software is “commercial computer
software,” as defined by Federal Acquisi-
tion Regulation (“FAR”) 2.101. Pursuant
to FAR 12.212 and 27.405-3 and Depart-
ment of Defense FAR Supplement
(“DFARS”) 227.7202, the U.S. govern-
ment acquires commercial computer
software under the same terms by which
the software is customarily provided to
the public. Accordingly, Keysight pro-
vides the Software to U.S. government
customers under its standard commercial
license, which is embodied in its End
User License Agreement (EULA), The
license set forth in the EULA represents
the exclusive authority by which the U.S.
government may use, modify, distribute,
or disclose the Software. The EULA and
the license set forth therein, does not
require or permit, among other things,
that Keysight: (1) Furnish technical infor-
mation related to commercial computer
software or commercial computer soft-
ware documentation that isnot custom-
arily provided to the public; or (2)
Relinquish to, or otherwise provide, the
government rights in excess of these
rights customarily provided to the public
to use, modify, reproduce, release, per-
form, display, or disclose commercial
computer software or commercial com-
puter software documentation. No addi-
tional government requirements beyond
those set forth in the EULA shall apply,
except to the extent that those terms,
rights, or licenses are explicitly required
from all providers of commercial com-
puter software pursuant to the FAR and
the DFARS and are set forth specifically
in writing elsewhere in the EULA. Key-
sight shall be under no obligation to
update, revise or otherwise modify the
Software. With respect to any technical
data as defined by FAR 2.101, pursuant
to FAR 12.211 and 27.404.2 and DFARS
227.7102, the U.S. government acquires
no greater than Limited Rights as defined
in FAR 27.401 or DFAR 227.7103-5 (c), as
applicable in any technical data.
Warranty
THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,” AND
IS SUBJECT TO BEING CHANGED,
WITHOUT NOTICE, IN FUTURE EDI-
TIONS. FURTHER, TO THE MAXIMUM
EXTENT PERMITTED BY APPLICABLE
LAW, KEYSIGHT DISCLAIMS ALL WAR-
RANTIES, EITHER EXPRESS OR IMPLIED,
WITH REGARD TO THIS MANUAL AND
ANY INFORMATION CONTAINED
HEREIN, INCLUDING BUT NOT LIMITED
TO THE IMPLIED WARRANTIES OF MER-
CHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. KEYSIGHT
SHALL NOT BE LIABLE FOR ERRORS OR
FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES IN CONNECTION WITH THE
FURNISHING, USE, OR PERFORMANCE
OF THIS DOCUMENT OR OF ANY INFOR-
MATION CONTAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A SEP-
ARATE WRITTEN AGREEMENT WITH
WARRANTY TERMS COVERING THE
MATERIAL IN THIS DOCUMENT THAT
CONFLICT WITH THESE TERMS, THE
WARRANTY TERMS IN THE SEPARATE
AGREEMENT SHALL CONTROL.
Safety Information
A CAUTION notice denotes a hazard. It
calls attention to an operating procedure,
practice, or the like that, if not correctly
performed or adhered to, could result in
damage to the product or loss of import-
ant data. Do not proceed beyond a CAU-
TION notice until the indicated conditions
are fully understood and met.
A WARNING notice denotes a hazard. It
calls attention to an operating procedure,
practice, or the like that, if not correctly
performed or adhered to, could result in
personal injury or death. Do not proceed
beyond a WARNING notice until the indi-
cated conditions are fully understood and
met.

i
Software Updates/Licenses
Periodically, Keysight releases software updates to fix known defects and incorporate product enhancements. To
search for software updates and the latest documentation for your product, go to the product page at:
Safety Information
Do not defeat power cord safety ground feature. Plug in to a grounded (earthed) outlet.
Do not use product in any manner not specified by the manufacturer.
Do not install substitute parts or perform any unauthorized modification to the product. Return the
product to an Keysight Technologies Sales and Service Office for service and repair to ensure that
safety features are maintained.
Safety Symbols
Earth Ground
Chassis Ground
Risk of electric
shock
Refer to manual for
additional safety
information

ii
Main Power and Test Input Disconnect: Unplug instrument from wall outlet, remove power cord, and
remove all cables from all terminals before servicing. Only qualified, service-trained personnel
should remove the cover from the instrument.
Line and Current Protection Fuses: For continued protection against fire, replace the line fuse and
the current-protection fuse only with fuses of the specified type and rating.
Additional Notices
Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
This product complies with the WEEE Directive (2002/96/EC) marking requirement.
The affixed product label (see below) indicates that you must not discard this electrical/electronic product in
domestic household waste.
Product Category: With reference to the equipment types in the WEEE directive Annex 1, this product is classified
as a "Monitoring and Control instrumentation" product.
Do not dispose in domestic household waste.

User/Service Guide vii
Contents
2 Quick Start
The Front Panel at a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
The Rear Panel at a Glance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
The Display at a Glance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Basic Amplifier Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Preparing the Amplifier for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Using the Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Basic Amplifier Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
If the Amplifier Does Not Turn On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2 Features and Functions
SCPI Programming Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Front Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Front Panel Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Displayed Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Front Panel Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Utility Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
File Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
System Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
I/O Config Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Annunciators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Turning the Display Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Front Panel Alphanumeric Character Entry . . . . . . . . . . . . . . . . . . . . . . 32
Error Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Reading the Error Queue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Mass Memory (MMEMory) Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Power-On and Reset State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3 Remote Interface Configuration
Configuring the USB Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Configuring the LAN Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Configuring LAN Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
DHCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Subnet Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Default Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Host Name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
DNS Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Instrument Unexpectedly Goes into Remote . . . . . . . . . . . . . . . . . . . . . 44
Setting up a LAN connection from the Front Panel. . . . . . . . . . . . . . . . . . . 45
Setting up a LAN connection from the Remote Interface . . . . . . . . . . . . . . 46

viii Keysight 33502A User/Service Guide
4 Service Information and Typical Characteristics
Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Verifying Amplifier Functionality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Gain, Flatness, and Full Power Bandwidth Tests . . . . . . . . . . . . . . . . . . 51
Output Current Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Internal Switching Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Types of Service Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Extended Service Contracts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Obtaining Repair Service (Worldwide) . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Repackaging for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Cleaning Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
To Order Replaceable Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Typical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
General Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Input Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Output Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Index

33502A 2-Channel Isolated Amplifier
User/Service Guide
13
1Quick Start
This chapter gives you a quick overview of the 33502A amplifier’s front panel and
basic features. The examples will help you become familiar with your amplifier
and its basic operation.
The Front Panel at a Glance 14
The Rear Panel at a Glance 15
The Display at a Glance 16
Basic Amplifier Operations 17
Preparing the Amplifier for Use 17
Using the Front Panel 18
Basic Amplifier Troubleshooting 20
If the Amplifier Does Not Turn On 20
To Adjust the Carrying Handle 21
To Rack Mount the Amplifier 22

14 Keysight 33502A User/Service Guide
1 Quick Start
The Front Panel at a Glance
The Keysight 33502A is a two-channel, isolated amplifier. Both channels can
either propagate a signal directly or with 5x amplification. The channel inputs are
on the rear panel of the amplifier, and the outputs are either on the front panel,
as shown here, or on the rear panel (Option 001 only). The main front panel
features are shown below.
1 On/Off Switch and power LED
2 USB Port (transfer files to and from memory
stick)
3SixFrontPanelSoftkeys
4 Channel 1 Output Connector
5 Channel 1 On/Off Switch
6 Channel 2 On/Off Switch
7 Channel 2 Output Connector

Keysight 33502A User/Service Guide 15
Quick Start 1
The Rear Panel at a Glance
The rear panel of the amplifier is shown below.
For protection from electrical shock, the power cord ground must not be defeated.
1 Channel 1 Input Connector
2 Channel 1 Output Connector (Option 001 only)
3 Channel 2 Output Connector (Option 001 only)
4 Channel 2 Input Connector
5 USB Interface Connector
6 LAN Interface Connector
7 AC Power Connector
8 Chassis Ground Screw

16 Keysight 33502A User/Service Guide
1 Quick Start
The Display at a Glance
By default, the front panel display shows the amplifier’s status. Channel 1
information is shown in yellow, and channel 2 information is shown in green. If
the thermal sensor in the amplifier detects a high temperature, the channel goes
into overload protection mode, and the channel status is surrounded by a border,
as shown on channel 1 below.
Notice the Error annunciator in the upper right corner of the display. This is an
example of an annunciator, a short string of text that appears to indicate a
specific condition.
Channel 1 Status Shown in yellow
Channel 2 Status Shown in green
Softkey Labels Shown at the bottom of the screen.

Keysight 33502A User/Service Guide 17
Quick Start 1
Basic Amplifier Operations
This section introduces the basics of the 33502A amplifier, and how to use it.
Preparing the Amplifier for Use
To verify that your 33502A amplifier is ready for use:
1Check the list of supplied items.
The following accessories are shipped standard with the 33502A amper:
• Power cord for country of destination
• Keysight 33502A Product Reference CD
• Keysight Automation Ready CD (IO Libraries Suite)
All manuals and other documentation are provided in electronic form on the
Keysight 33502A Product Reference CD.
Before installing the instrument, verify that you have received these items with
your instrument. If anything is missing, please contact your nearest Keysight
sales office or Keysight authorized reseller .
2Inspect the unit.
When you receive your amplifier, inspect it for any obvious damage that may
have occurred during shipment. If there is damage, notify the shipping carrier
and nearest Keysight sales office or Keysight authorized reseller immediately.
Until you have verified that the amplifier is functional, save the shipping
carton and packing materials in case the unit has to be returned.
3Connect the power cord and turn on the amplifier.
The front-panel display will light up while the amplifier performs its power-on
self-test. The amplifier powers up with DC coupling and 1 MW impedance on
both channels.

18 Keysight 33502A User/Service Guide
1 Quick Start
Using the Front Panel
The front panel includes two buttons that turn the channels on and off. This is the
default configuration, and the amplifier also has an orderable configuration with
the output connectors in the back (Option 001).
When you turn a channel on, the number on the button illuminates, as shown
below for channel 1.

Keysight 33502A User/Service Guide 19
Quick Start 1
The front panel also includes six softkeys at the bottom of the display that allow
you to select various functions and options. Each softkey selects the option
shown on the front panel display immediately above the softkey.

20 Keysight 33502A User/Service Guide
1 Quick Start
Basic Amplifier Troubleshooting
This section covers basic troubleshooting and general use.
If the Amplifier Does Not Turn On
Use the following steps to help solve problems you might encounter when
turning on the amplifier. If you need more help, call Keysight support for service.
See Chapter 4, “Service Information,” starting on page 50
1Verify that there is AC power to the amplifier.
First, verify that the power cord is firmly plugged into the power module on
the rear panel and that the amplifier’s Power switch is in the “On” position.
Ensure that the power source the amplifier is plugged into is energized.
2Check whether the LED below the power switch is illuminated.
If it is illuminated and yellow, the amplifier is receiving power and you should
try to turn the power on again. When you turn the amplifier on, the LED
should be illuminated and green. If the amplifier still does not come up, or if
the LED does not light up in the presence of known-good power, your
amplifier is in need of repair.

Keysight 33502A User/Service Guide 21
Quick Start 1
To Adjust the Carrying Handle
To adjust the position, grasp the handle by the sides and pull outward. Then,
rotate the handle to the desired position.
Bench-Top Viewing Positions
Carrying Position

22 Keysight 33502A User/Service Guide
1 Quick Start
To Rack Mount the Amplifier
You can mount the 33502A in a standard 19–inch rack cabinet using the
available rack–mount kits. Instructions and mounting hardware are included with
each kit. Any Keysight System II (half-width, 2U height) instrument of either the
272.3 mm or the 348.3 mm depth can be rack mounted side–by–side with the
33502A. For example, a 33502A and a 33210A, or two 33502As, can be mounted
side–by–side, as shown below.
You must remove the carrying handle, and the front and rear rubber bumpers,
before rack mounting an instrument.
To remove each bumper, stretch a corner and slide it off.
To remove the handle, rotate it to the vertical position and pull the ends outward.
To rack mount a single amplifier, order adaptor kit 5063-9240
To rack mount two instruments side-by-side, order lock-link kit
5061-6769 and flange kit 5063-9212

33502A 2-Channel Isolated Amplifier
User/Service Guide
23
2Features and Functions
In this chapter you will find a detailed description of the amplifier’s capabilities
and operation. This chapter presents both front-panel and remote interface
operation of the instrument.
Refer to the Keysight 33502A Programmer’s Reference Help for a detailed
description of the SCPI commands.
SCPI Programming Introduction 24
Front Panel Features 25
Front Panel Display 25
Displayed Messages 25
Front Panel Main Menu 26
Utility Menu 26
File Menu 28
System Menu 29
I/O Config Menu 30
Annunciators 31
Turning the Display Off 31
Front Panel Alphanumeric Character Entry 32
Error Conditions 32
Reading the Error Queue 33
Mass Memory (MMEMory) Subsystem 34
Power-On and Reset State 35

24 Keysight 33502A User/Service Guide
2 Features and Functions
SCPI Programming Introduction
The Keysight 33502A complies with the syntax rules and conventions of SCPI
(Standard Commands for Programmable Instruments). For complete SCPI command
syntax information, refer to the Keysight 33502A Programmer’s Reference Help.
This is a standard Windows help system, provided on the Keysight 33502A
Product Reference CD-ROM that came with your instrument.
SCPI Language Conventions. Throughout this guide, the following
conventions are used for SCPI command syntax for remote interface
programming:
• Braces ( { } ) enclose the parameter choices for a given command string. The
braces are not sent with the command string.
• A vertical bar ( | ) separates multiple parameter choices for a given command
string.
• Triangle brackets ( < > ) indicate that you must specify a value for the
enclosed parameter. The brackets are not sent with the command string.
• Some parameters are enclosed in square brackets ( [ ] ). This indicates that
the parameter is optional and can be omitted. The brackets are not sent with
the command string. If you do not specify a value for an optional parameter,
the instrument chooses a default value.
SCPI Language Version. You can determine the SCPI version to which your
instrument adheres by sending a command from the remote interface.
• You can query the SCPI version from the remote interface only.
• Remote Interface Operation: The SYSTem:VERSion? query returns the SCPI
version in the form “YYYY.V”, where “YYYY” represents the year of the version,
and “V” represents a version number for that year (for example, 2009.0).

Keysight 33502A User/Service Guide 25
Features and Functions 2
Front Panel Features
Front Panel Display
The Keysight 33502A provides an alphanumeric display to indicate the status of
the channels and the amplifier’s overall configuration. The display also includes a
menu section at the bottom that allows you to configure the instrument and
perform certain operations.
Displayed Messages
The center of the display shows the status of each channel, as shown below.
The bottom of the screen is reserved for six softkey labels. Each label describes
the function of the softkey immediately below it. A sample menu is shown below.

26 Keysight 33502A User/Service Guide
2 Features and Functions
Front Panel Main Menu
The structure of the main menu is shown below. Four of the buttons allow you to
configure the channels, and the rest of the menu options fall under the Utility
menu.
Utility Menu
The Utility menu is the largest part of the front panel menu system. It is shown in
detail below.
Channel
12
Selects the channel to configure.
Direct
Amplified
Specifies whether the selected channel should go directly through the
33502A, or whether it should get 5x amplification. If you select Amplify, the
Impedance and Coupling softkeys (below) become active.
Impedance
50Ω1MΩ
Specifies whether the selected channel should have 50 or 1,000,000 ohms
of input impedance.
Coupling
AC DC
Allows you specify whether the channel should be AC or DC coupled.
Utility Allows you to configure the instrument, view errors and manipulate files on
the mass memory subsystem.