Keysight U2300A Series User manual
Keysight U2300A Series
USB Multifunction Data
Acquisition Devices
Service Guide
4 Keysight U2300A Series Service Guide
Notices
Copyright Notice
© Keysight Technologies 2007 – 2021
No part of this manual may be
reproduced in any form or by any
means (including electronic storage
and retrieval or translation into a
foreign language) without prior
agreement and written consent from
Keysight Technologies as governed by
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copyright laws.
Manual Part Number
U2351-90203
Edition
Edition 8, August 2021
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
product and for other Keysight
products may be downloaded from the
Web. Go to http://www.keysight.com/
go/conformity. You can then search by
product number to find the latest
Declaration of Conformity.
U.S. Government Rights
The Software is “commercial computer
software,” as defined by Federal
Acquisition Regulation (“FAR”) 2.101.
Pursuant to FAR 12.212 and 27.405-3
and Department of Defense FAR
Supplement (“DFARS”) 227.7202, the
U.S. government acquires commercial
computer software under the same
terms by which the software is
customarily provided to the public.
Accordingly, Keysight provides the
Software to U.S. government
customers under its standard
commercial license, which is embodied
in its End User License Agreement
(EULA), a copy of which can be found
at http://www.keysight.com/find/
sweula. 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
information related to commercial
computer software or commercial
computer software documentation that
is not customarily 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,
perform, display, or disclose
commercial computer software or
commercial computer software
documentation. No additional
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
computer software pursuant to the FAR
and the DFARS and are set forth
specifically in writing elsewhere in the
EULA. Keysight 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 EDITIONS. FURTHER, TO THE
MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, KEYSIGHT
DISCLAIMS ALL WARRANTIES, EITHER
EXPRESS OR IMPLIED, WITH REGARD
TO THIS MANUAL AND ANY
INFORMATION CONTAINED HEREIN,
INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF
MERCHANTABILITY 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 INFORMATION
CONTAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A
SEPARATE 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
CAUTION
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 important data. Do not
proceed beyond a CAUTION notice
until the indicated conditions are fully
understood and met.
WARNING
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 indicated conditions are
fully understood and met.
Keysight U2300A Series Service Guide 5
Safety Symbols
The following symbols indicate that precautions must be taken to maintain safe
operation of the instrument.
Direct current Warning
6 Keysight U2300A Series Service Guide
Regulatory Markings
The CE mark is a registered trademark
of the European Community. This CE
mark shows that the product complies
with all the relevant European Legal
Directives.
The CSA mark is a registered
trademark of the Canadian Standards
Association.
The CE mark is a registered trademark
of the European Community. This CE
mark shows that the product complies
with all the relevant European Legal
Directives.
ICES/NMB-001 indicates that this ISM
device complies with the Canadian
ICES-001.
Cet appareil ISM est conforme a la
norme NMB-001 du Canada.
ISM GRP.1 Class A indicates that this
is an Industrial Scientific and Medical
Group 1 Class A product.
The RCM mark is a registered
trademark of the Spectrum
Management Agency of Australia. This
signifies compliance with the Australia
EMC Framework regulations under the
terms of the Radio Communication Act
of 1992.
This instrument complies with the
WEEE Directive (2002/96/EC) marking
requirement. This affixed product label
indicates that you must not discard
this electrical or electronic product in
domestic household waste.
This symbol indicates the time period
during which no hazardous or toxic
substance elements are expected to
leak or deteriorate during normal use.
Forty years is the expected useful life
of the product.
This symbol is a South Korean Class A
EMC Declaration. This is a Class A
instrument suitable for professional
use and in electromagnetic
environment outside of the home.
Keysight U2300A Series Service Guide 7
General Safety Information
The following general safety precautions must be observed during all phases of
operation, service, and repair of this instrument. Failure to comply with these
precautions or with specific warnings elsewhere in this manual violates safety
standards for design, manufacture, and intended use of the instrument. Keysight
Technologies assumes no liability for the customer’s failure to comply with these
requirements.
WARNING
– Do not use the device if it is damaged. Before you use the device, inspect
the case. Look for cracks or missing plastic. Do not operate the
instrument around flammable gases or fumes, vapor, or wet
environments.
– Do not apply more than the rated voltage (as marked on the device)
between terminals, or between terminal and external ground.
– Always use the device with the cables provided.
– Observe all markings on the device before connecting to the device.
– Turn off the device and application system power before connecting to
the I/O terminals.
– When servicing the device, use only specified replacement parts.
– Do not operate the device with the removable cover removed or loosened.
– Do not connect any cables and terminal block prior to performing
self-test process.
– Use only the power adapter supplied by the manufacturer to avoid any
unexpected hazards.
8 Keysight U2300A Series Service Guide
CAUTION
– Do not load the output terminals above the specified current limits.
Applying excessive voltage or overloading the device will cause
irreversible damage to the circuitry.
– Applying excessive voltage or overloading the input terminal will damage
the device permanently.
– If the device is used in a manner not specified by the manufacturer, the
protection provided by the device may be impaired.
– Clean the case with a soft, lint-free, slightly dampened cloth. Do not use
detergent, volatile liquids, or chemical solvents.
– Do not permit any blockage of the ventilation holes of the device.
– The input voltage range for the device is 100 to 240 VAC. Mains supply
voltage fluctuations are not to exceed ±10% of the nominal supply
voltage.
Keysight U2300A Series Service Guide 9
Waste Electrical and Electronic Equipment (WEEE) Directive
2002/96/EC
This instrument complies with the WEEE Directive (2002/96/EC) marking
requirement. This affixed product label indicates that you must not discard this
electrical or electronic product in domestic household waste.
Product category:
With reference to the equipment types in the WEEE directive Annex 1, this
instrument is classified as a “Monitoring and Control Instrument” product.
The affixed product label is as shown below.
Do not dispose in domestic household waste.
To return this unwanted instrument, contact your nearest Keysight Service Center,
or visit http://about.keysight.com/en/companyinfo/environment/takeback.shtml
for more information.
Sales and Technical Support
To contact Keysight for sales and technical support, refer to the support links on
the following Keysight websites:
–www.keysight.com/find/U2300A
(product-specific information and support, software and
documentation updates)
–www.keysight.com/find/assist
(worldwide contact information for repair and service)
10 Keysight U2300A Series Service Guide
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Keysight U2300A Series Service Guide 11
Table of Contents
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Regulatory Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
General Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Waste Electrical and Electronic Equipment (WEEE) Directive
2002/96/EC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Product category: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Sales and Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1 Characteristics and Specifications
2Calibration
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Types Of Signal Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Ground-referenced signal sources . . . . . . . . . . . . . . . . . . . . . . . . . .21
Floating signal sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Input Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Single-ended connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Differential Input Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Hardware Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Self-Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Adjustment Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Performance Verification Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . .38
A/D Data Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
3 Dismantle Procedures
General Disassemble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Mechanical Disassemble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
4 Troubleshooting and Self-Test Procedures
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
12 Keysight U2300A Series Service Guide
Self-Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
A Connector Pins Configuration
Pins Configuration for U2331A, U2355A and U2356A . . . . . . . . . . . . . 56
Pins Configuration for U2351A, U2352A, U2353A and U2354A . . . . . . 57
BTestLimits
Analog Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Keysight U2300A Series Service Guide 13
List of Figures
Figure 2-1 Floating source and RSE input connections . . . . . . . .22
Figure 2-2 Ground-referenced sources and NRSE input
connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Figure 2-3 Ground-referenced source and differential input
mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Figure 2-4 Floating source and differential input . . . . . . . . . . . . .25
Figure 2-5 The analog input and calibrator connection . . . . . . . .27
Figure 2-6 The analog input and calibrator connection . . . . . . . .27
Figure 2-7 The analog input and DMM connection . . . . . . . . . . .29
Figure 2-8 The analog output and DMM connection . . . . . . . . . .29
Figure 2-9 Launch the Interactive IO in Keysight Connection
Expert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Figure 2-10 Interactive IO dialog box . . . . . . . . . . . . . . . . . . . . . . .32
Figure 2-11 Self Calibration Form dialog box in Keysight
Measurement Manager . . . . . . . . . . . . . . . . . . . . . .33
Figure 2-12 Self Calibration Form dialog box in Keysight
Measurement Manager with a device being
selected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Figure 2-13 Self Calibration Form dialog box in Keysight
Measurement Manager showing the status and
resultof the self-calibration process . . . . . . . . . . . .35
Figure 2-14 The flowchart showing the steps for 5 V calibration . .36
Figure A-1 Pins Configuration of Connector 1 for U2331A,
U2355A, U2356A . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Figure A-2 Pins Configuration of Connector 2 for U2331A,
U2355A, U2356A . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Figure A-3 Pins Configuration for U2352A, U2354A . . . . . . . . . . .57
Figure A-4 Pins Configuration for U2351A, U2353A . . . . . . . . . . .57
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16 Keysight U2300A Series Service Guide
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Keysight U2300A Series
USB Multifunction Data Acquisition Devices
Service Guide
17
1 Characteristics and
Specifications
For the characteristics and specifications of the U2300A Series USB Multifunction
Data Acquisition Devices, refer to the datasheet at
http://literature.cdn.keysight.com/litweb/pdf/5991-0566EN.pdf.
1 Characteristics and Specifications
18 Keysight U2300A Series Service Guide
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Keysight U2300A Series
USB Multifunction Data Acquisition Devices
Service Guide
19
2 Calibration
Introduction 20
Types Of Signal Sources 21
Input Configurations 22
Hardware Connection 26
Self-Calibration 30
Adjustment Procedures 36
Performance Verification Procedure 38
A/D Data Conversion 42
This chapter includes the equipments required for the calibration procedure and
describe the hardware connection for analog input and analog output. The
self-calibration procedure, performance verification procdure and adjustment
procedure are also included.
2Calibration
20 Keysight U2300A Series Service Guide
Introduction
Prior to checking the performace of the instrument, ensure that you have all the
equipments listed in the following to perform the verification procedure for analog
input and analog output.
Equipment Checklist
✔Keysight U2300A Series USB Multifunction DAQ devices
✔Keysight Digital Multimeter (DMM) 34401A/34410A
✔Fluke Calibrator 5520A/5720A
✔Computer with Keysight IO Library Suites installed
✔U2901A Terminal Block
✔USB Mini-B Cable
✔U2901A SCSI Cable
Follow the following steps to ensure the instrument gives accurate analog input
readings and analog outputs.
1Perform the self-calibration procedure. See “Self-Calibration”.
2Perform the performance verification procedure. See “Performance Verification
Procedure”, “Analog Input Connection” for information on analog input
connection and “Analog Output Connection” for information on analog output
connection.
3If the instrument gives accurate readings or accurate outputs, adjustment
procedure is not necessary. If the instrument does not give accurate readings
or accurate outputs, perform the adjustment procedure. See “Adjustment
Procedures”.
4After perform the adjustment procedure, repeat the self-calibration procedure
and then perform the verification procedure.
5If the instrument still does not give accurate readings or accurate outputs,
repeat step 3 and step 4.
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