Agilent Technologies E4412A Service manual

Agilent Technologies
Agilent
E4412A and E4413A
Power Sensor
Operating and Service
Guide

ii
Notices
© Agilent Technologies, Inc. 1999, 2009
No part of this manual may be reproduced in
any form or by any means (including elec-
tronic storage and retrieval or translation
into a foreign language) without prior agree-
ment and written consent from Agilent
Technologies, Inc. as governed by United
States and international copyright laws.
Manual Part Number
E4412-90013
Edition
May 29, 2009
Agilent Technologies, Inc.
5301 Stevens Creek Blvd.
Santa Clara, CA 95052 USA
Warranty
The material contained in this docu-
ment is provided “as is,” and is sub-
ject to being changed, without notice,
in future editions. Further, to the max-
imum extent permitted by applicable
law, Agilent 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 par-
ticular purpose. Agilent shall not be
liable for errors or for incidental or
consequential damages in connec-
tion with the furnishing, use, or per-
formance of this document or of any
information contained herein. Should
Agilent 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 sep-
arate agreement shall control.
Technology Licenses
The hardware and/or software described in
this document are furnished under a license
and may be used or copied only in accor-
dance with the terms of such license.
Restricted Rights Legend
U.S. Government Restricted Rights. Soft-
ware and technical data rights granted to
the federal government include only those
rights customarily provided to end user cus-
tomers. Agilent provides this customary
commercial license in Software and techni-
cal data pursuant to FAR 12.211 (Technical
Data) and 12.212 (Computer Software) and,
for the Department of Defense, DFARS
252.227-7015 (Technical Data - Commercial
Items) and DFARS 227.7202-3 (Rights in
Commercial Computer Software or Com-
puter Software Documentation).
Safety Notices
CAUTION
A CAUTION notice denotes a haz-
ard. It calls attention to an operat-
ing 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 per-
formed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated condi-
tions are fully understood and
met.

iii
Certification
Agilent Technologies certifies that this product met its published
specifications at the time of shipment. Agilent further certifies that its
calibration measurements are traceable to the United States National
Institute of Standard and Technology (formerly National Bureau of
Standards), to the extent allowed by that organization’s calibration facility,
and to the calibration facilities of other International Standards
Organization members.
General 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, Agilent 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. Agilent
shall not be liable for errors or for incidental or consequential damages in
connection with the furnishing, use, or performance of this document or
any information contained herein. Should Agilent 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. Duration and conditions of warranty for
this product may be superseded when the product is integrated into
(becomes a part of) other Agilent products. During the warranty period,
Agilent will, at its option, either repair or replace products which prove to
be defective. The warranty period begins on the date of delivery or on the
date of installation if installed by Agilent.
Warranty Service
For warranty service or repair, this product must be returned to a service
facility designated by Agilent. For products returned to Agilent for
warranty service, the Buyer shall prepay shipping charges to Agilent and
Agilent shall pay shipping charges to return the product to the Buyer.
However, the Buyer shall pay all shipping charges, duties, and taxes for
products returned to Agilent from another country.

iv
Limitation of Warranty
The foregoing warranty shall not apply to defects resulting from improper
or inadequate maintenance by the Buyer, Buyer-supplied products or
interfacing, unauthorized modification or misuse, operation outside of the
environmental specifications for the product, or improper site preparation
or maintenance.
The design and implementation of any circuit on this product is the sole
responsibility of the Buyer. Agilent does not warrant the Buyer’s circuitry
or malfunctions of Agilent products that result from the Buyer’s circuitry.
In addition, Agilent does not warrant any damage that occurs as a result of
the Buyer’s circuit or any defects that result from Buyer-supplied products.
To the extent allowed by local law, Agilent makes no other warranty,
expressed or implied, whether written or oral with respect to this product
and specifically disclaims any implied warranty or condition of
merchantability, fitness for a particular purpose or satisfactory quality.
Exclusive Remedies
To the extent allowed by local law, the remedies provided herein are the
Buyer’s sole and exclusive remedies. Agilent shall not be liable for any
direct, indirect, special, incidental, or consequential damages (including
lost profit or data), whether based on warranty, contract, tort, or any other
legal theory.

v
Restricted Rights Legend
The Software and Documentation have been developed entirely at private
expense. They are delivered and licensed as “commercial computer
software” as defined in DFARS 252.227-7013 (Oct 1988), DFARS
252.211-7015 (May 1991), or DFARS 252.227-7014 (Jun 1995), as a
“commercial item” as defined in FAR 2.101(a), or as “restricted computer
software” as defined in FAR 52.227-19 (Jun 1987) (or any equivalent
agency regulation or contract clause), whichever is applicable. You have
only those rights provided for such Software and Documentation by the
applicable FAR or DFARS clause or the Agilent standard software
agreement for the product involved.
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.

vi
Safety Summary
The following general safety precautions must be observed during all
phases of operation of this instrument. Failure to comply with these
precautions or with specific warnings elsewhere in this manual violates
safety standards of design, manufacture, and intended use of the
instrument. Agilent Technologies, Inc. assumes no liability for the
customer’s failure to comply with these requirements.
Safety Notices
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 loss of life. Do not proceed
beyond a WARNING notice until the indicated conditions are fully
understood and met.
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.

vii
Safety Symbols
The following symbol on the instrument and in the documentation
indicates precautions that must be taken to maintain safe operation of the
instrument.
Caution, risk of danger.
The Instruction Documentation Symbol. The product is marked with this symbol
when it is necessary for the user to refer to the instructions in the supplied docu-
mentation.
This symbol indicates that a device, or part of a device, may be susceptible to
electrostatic discharges (ESD) which can result in damage to the product.
Observe ESD precautions given on the product, or its user documentation, when
handling equipment bearing this mark.
Alternating current (AC).
Direct current (DC).
Both direct and alternating current.
Three-phase alternating current.
Earth (ground) TERMINAL.
ESD

viii
PROTECTIVE CONDUCTOR TERMINAL.
Frame or chasis TERMINAL.
Equipotentiality.
On (Supply).
Off (Supply).
Equipment protected throughout by DOUBLE INSULATION or
REINFORCED INSULATION.
Caution, risk of electric shock.
Caution, hot surface.
In position of bi-stable push control.

ix
Out position of bi-stable push control.

x
Regulatory Markings
The CE mark shows that the product complies with all the relevant European legal
Directives (if accompanied by a year, it signifies when the design was proven).
The C-tick mark is a registered trademark of the Spectrum management Agency
of Australia. This signifies compliance with the Australian EMC Framework regu-
lations under the terms of the Radio Communications Act of 1992.
This product complies with the WEEE Directive (2002/96/EC) marking equip-
ment. The affixed product label indicates that you must not discard this electri-
cal/electronic product in domestic household waste.
This ISM device complies with the Canadian ICES-001,
Cet appareil ISM est conforme à la norme NMB-001 du Canada.
ISM 1- A
N10149
ICES/NMB - 001

xi
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 of design, manufacture, and intended
use of the instrument. Agilent Technologies assumes no liability for the
customer’s failure to comply with these requirements.
WARNING
BEFORE CONNECTING THE POWER SENSOR TO OTHER INSTRUMENTS
ensure that all instruments are connected to the protective (earth)
ground. Any interruption of the protective earth grounding will cause a
potential shock hazard that could result in personal injury.
CAUTION
• Use the device with the cables provided
• Repair or service that is not covered in this manual should only be
performed by qualified personnels.
CAUTION
• This product is designed for use in Installation category II and Pollution
Degree 2.
•This instrument has been designed and tested in accordance with IEC
Publication 248, Safety Requirements for Electronic Measuring
Apparatus, and has been supplied in a safe condition. The instruction
documentation contains information and warnings which must be
followed by the user to ensure safe operation and to maintain the
instrument in a safe condition.
• Notice for germany: Noise Declaration L
r A < 70 dBm am Arbeitsplatz
(operator position) mormaler Betrieb (normal position) nach DIN 45635
T.19 (per ISO 7779).

xii
In This Guide ...
1Operation and Service Guide This chapter contains information about
initial inspection, performance tests, specifications, operations,
troubleshooting and service of the Agilent E4412A and E4413A power
sensors.
2Appendix This Appendix contains specifications that applies to E4412A
and E4413A sensors (formerly EXCP-E18A and ECP-E26A, respectively)
with a serial prefix below US3848/MYxxxxxxxx/SGxxxxxxxx.

xiii
Contents
Notices ii
General Warranty iii
Warranty Service iii
Limitation of Warranty iv
Exclusive Remedies iv
Technology Licenses v
Safety Summary vi
Safety Notices vi
Safety Symbols vii
Regulatory Markings x
General Safety Information xi
In This Guide ... xii
1 Operation and Service Guide
General Information 3
Performance Test 15
Replaceable Parts 17
Service 20
Warranty 3
Instruments Covered by Manual 3
Description 3
Specifications 4
Calibration Factor (CF) and Reflection Coefficient (Rho) 8
Installation 11
Interconnections 11
Recommended Calibration Interval 11
Storage and Shipment 12
Operation 12
Power Meter Calibrations 14
Operating Instructions 14
Standing Wave Ratio (SWR) and Reflection Coefficient (Rho)Performance Test 15
Principles of Operation 20
Troubleshooting 20
Repair of Defective Sensor 21

xiv
Cleaning 21
Disassembly Procedure 22
Reassembly Procedure 23
Agilent Sales and Service Offices 24
A Appendix
E4412A and E4413A Specifications (Serial Prefixes Below
US3848/MYxxxxxxxx/SGxxxxxxxx) A-2
E4412A Calibration Factor Uncertainty at 1 mW (0 dBm) (Serial Prefixes Below
US3848/MYxxxxxxxx/SGxxxxxxxx) A-4
E4413A Calibration factor Uncertainty at 1 mW (0 dBm) (Serial Prefixes Below
US3848/MYxxxxxxxx/SGxxxxxxxx) A-5

xv
List of Figures
Figure 1 E4412A and E4413A Power Sensors (Formerly ECP-E18A and EXCP-E26A,
respectively) 2
Figure 2 Relative Mode Power Measurement Linearity with Power Meter/Sensor at
25 ºC (Typical) 7
Figure 3 N8485A power sensor with adapter 14
Figure 4 Illustrated Parts Break down 18
Figure 5 Removing Power Sensor Shell 22

xvi
List of Tables
Ta b l e 1 E4412A and E4413A Specifications A-5
Ta b l e 2 E4412A Calibration Factor Uncertainty at 1 mW (0 dBm) A-9
Ta b l e 3 E4413A Calibration Factor Uncertainty at 1 mW (0 dBm) A-10
Ta b l e 4 Power Sensor SWR and Reflection Coefficient for the E4412Aa A-15
Ta b l e 5 Power Sensor SWR and Reflection Coef ficient for the E4413Aa A-16
Ta b l e 5 Power Sensor SWR and Reflection Coef ficient for the E4413Aa A-16
Ta b l e 6 Replaceable Parts A-19
Ta b l e 7 Agilent Sales and Service Offices A-24
Ta b l e A -1 E4412A and E4413A Specifications (Serial Prefixes Below
US3848/MYxxxxxxxx/SGxxxxxxxx) A-2
Ta b l e A -2 E4412A Calibration Factor Uncertainty at 1 mW (0 dBm) (Serial Prefixes
Below US3848/MYxxxxxxxx/SGxxxxxxxx) A-4
Ta b l e A -3 E4413A Calibration factor Uncertainty at 1 mW (0 dBm) (Serial Prefixes
Below US3848/MYxxxxxxxx/SGxxxxxxxx) A-5

1
Agilent E4412A and E4413A Power Sensors
Operating and Service Guide
Agilent Technologies
1
Operation and Service Guide
General Information 3
Performance Test 15
Replaceable Parts 17
Service 20
This chapter contains information about initial inspection, performance tests,
specifications, operations, troubleshooting and service of the Agilent E4412A and E4413A
power sensors.

1Introduction
2 Agilent E4412A and E4413A Power Sensors Operating and Service Guide
Figure 1 E4412A and E4413A Power Sensors (Formerly ECP-E18A and EXCP-E26A,
respectively)

Introduction 1
Agilent E4412A and E4413A Power Sensors Operating and Service Guide 3
General Information
Warranty
The power sensors are warranted and certified as indicated on the inside
cover of this manual.
Instruments Covered by Manual
These instruments have a two- part serial number: the prefix (two letters and
the first four numbers), and the suffix (the last four numbers). The two letters
identify the country in which the unit was manufactured. The four numbers
of the prefix are a code identifying the date of the last major design change
incorporated in your Agilent Technologies product. The four- digit suffix is a
sequential number and, coupled with the prefix, provides a unique
identification for each unit produced. The contents of this manual apply
directly to all serial numbers unless otherwise indicated.
Description
The E4412A and E4413A power sensors are diode power sensors. They are
intended for measurement of CW microwave power levels in a wide
dynamic range from - 70 dBm to +20 dBm (100 pW to 100 mW). The
E4412A measures at frequencies from 10 MHz to 18.0 GHz. The E4413A
measures at frequencies from 50 MHz to 26.5 GHz. These are high- speed
power sensors, and do not incorporate narrow- bandwidth averaging used in
average- power sensors. Signals with digital, pulse, or other forms of
amplitude modulation may introduce measurement errors. Multi- tone signals
(containing multiple frequency components), or signals with significant
harmonic content (> - 45 dBc) may introduce measurement errors at high
power levels. (Specifications for the power sensors are in Table 1).

1Introduction
4 Agilent E4412A and E4413A Power Sensors Operating and Service Guide
These power sensors measure CW power, displayed on a compatible power
meter in logarithmic (dBm or dB) or linear (Watts or %) measurement units.
The E4413A is shipped with a 3.5- mm to Type- N adapter, part number
08485- 60005.
Specifications
The specifications listed in Table 1 are the performance standards or limits
against which the power sensor may be tested. These specifications are valid
ONLY after proper calibration of the power meter. Refer to the Calibration
Procedure Using Agilent E- Series Power Sensors in the E4418A or the
Agilent E4419A Power Meter User’s Guide.
NOTE
The E4412A and E4413A power sensors are compatible ONLY with the newer E44XX-Series
power meters. They are NOT compatible with the earlier 430-Series, E1416A, or 70100A
power meters.
NOTE
The E4412A and E4413A power sensors are extremely static- sensitive. Do not open the
power sensor unless you and the power sensor are at a static-free workstation.