Agilent Technologies 16048A Service manual

Agilent 16048E Test Leads
Operation and Service Manual
Fourth Edition
Agilent Technologies Japan, Ltd.
Agilent PN 16048-90041
March 2000
Printed in: Japan
Notices
The information contained in this document is subject to change without notice.
This document contains proprietary information that is protected by copyright.All
rights are reserved. No part of this document may be photocopied, reproduced, or
translated to another language without the prior written consent of the Agilent
Technologies.
Agilent Technologies Japan, Ltd.
Component Test PGU-Kobe
1-3-2, Murotani, Nishi-Ku, Kobe-shi, Hyogo, 651-2241 Japan
Copyright © 1992, 1998, 1999, 2000 Agilent Technologies Japan, Ltd.
Manual Printing History
The manual’s printing date and part number indicate its current edition. The
printing date changes when a new edition is printed. (Minor corrections and
updates that are incorporated at reprint do not cause the date to change.) The
manual part number changes when extensive technical changes are incorporated.
1992
First Edition (part number: 16048-90040)
November 1998 Second Edition (part number: 16048-90041)
July 1999
Third Edition (part number: 16048-90041)
March 2000
Fourth Edition (part number: 16048-90041)
Safety Summary
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 may impair the
protection provided by the equipment. In addition it 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.
•
2
Ground The Instrument
To avoid electric shock hazard, the instrument chassis and cabinet must be
connected to a safety earth ground by the supplied power cable with earth
blade.
•
DO NOT Operate In An Explosive Atmosphere
Do not operate the instrument in the presence of flammable gasses or fumes.
Operation of any electrical instrument in such an environment constitutes a
definite safety hazard.
•
Keep Away From Live Circuits
Operating personnel must not remove instrument covers. Component
replacement and internal adjustments must be made by qualified maintenance
personnel. Do not replace components with the power cable connected. Under
certain conditions, dangerous voltages may exist even with the power cable
removed. To avoid injuries, always disconnect power and discharge circuits
before touching them.
•
DO NOT Service Or Adjust Alone
Do not attempt internal service or adjustment unless another person, capable of
rendering first aid and resuscitation, is present.
•
DO NOT Substitute Parts Or Modify Instrument
Because of the danger of introducing additional hazards, do not install
substitute parts or perform unauthorized modifications to the instrument.
Return the instrument to a Agilent Technologies Sales and Service Office for
service and repair to ensure that safety features are maintained.
•
Dangerous Procedure Warnings
Warnings, such as the example below, precede potentially dangerous
procedures throughout this manual. Instructions contained in the warnings must
be followed.
WARNING
Dangerous voltages, capable of causing death, are presenting this instrument.
Use extreme caution when handling, testing, and adjusting this instrument.
Certification
Agilent Technologies certifies that this product met its published specifications at
the time of shipment from the factory. Agilent Technologies further certifies that
its calibration measurements are traceable to the United States National Institute of
Standards and Technology, to the extent allowed by the Institution’s calibration
facility, or to the calibration facilities of other International Standards Organization
members.
3
Warranty
This Agilent Technologies instrument product is warranted against defects in
material and workmanship for a period corresponding to the individual warranty
periods of its component products. Instruments are warranted for a period of one
year. Fixtures and adapters are warranted for a period of 90 days. During the
warranty period, Agilent Technologies Company will, at its option, either repair or
replace products that prove to be defective.
For warranty service or repair, this product must be returned to a service facility
designated by Agilent Technologies. Buyer shall prepay shipping charges to
Agilent Technologies and Agilent Technologies shall pay shipping charges to
return the product to Buyer. However, Buyer shall pay all shipping charges, duties,
and taxes for products returned to Agilent Technologies from another country.
Agilent Technologies warrants that its software and firmware designated by
Agilent Technologies for use with an instrument will execute its programming
instruction when property installed on that instrument. Agilent Technologies does
not warrant that the operation of the instrument, or software, or firmware will be
uninterrupted or error free.
Limitation of Warranty
The foregoing warranty shall not apply to defects resulting from improper or
inadequate maintenance by Buyer, Buyer-supplied software or interfacing,
unauthorized modification or misuse, operation outside the environmental
specifications for the product, or improper site preparation or maintenance.
IMPORTANT
No other warranty is expressed or implied. Agilent Technologies specifically
disclaims the implied warranties of merchantability and fitness for a particular
purpose.
Exclusive Remedies
The remedies provided herein are buyer’s sole and exclusive remedies. Agilent
Technologies shall not be liable for any direct, indirect, special, incidental, or
consequential damages, whether based on contract, tort, or any other legal theory.
4
Assistance
Product maintenance agreements and other customer assistance agreements are
available for Agilent Technologies products.
For any assistance, contact your nearest Agilent Technologies Sales and Service
Office. Addresses are provided at the back of this manual.
Safety Symbol
General definitions of safety symbols used on the instrument or in manuals are
listed below.
!
Instruction Manual symbol: the product is marked with this symbol when it is
necessary for the user to refer to the instrument manual.
WARNING
This warning sign denotes a hazard. It calls attention to a procedure, practice,
condition or the like, which, if not correctly performed or adhered to, could
result in injury or death to personnel.
CAUTION
This Caution sign denotes a hazard. It calls attention to a procedure, practice,
condition or the like, which, if not correctly performed or adhered to, could result
in damage to or destruction of part or all of the product.
NOTE
Note denotes important information. It calls attention to a procedure, practice,
condition or the like, which is essential to highlight.
5
6
Contents
1. Operation
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compensation for Fixture Residual Impedance Error . . . . . . . . . . . . . . . . . . . . .
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setup and Measurement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BNC Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
11
12
13
13
13
2. Service
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7
Contents
8
1
Operation
This operating note provides complete information on the 16048E Test Leads. The
16048E is shown in Figure 1-1, its physical dimensions are given in Table 1-1. To
order additional copies of this operating note, use the part number listed on the rear
cover.
9
Operation
Product Description
Product Description
The 16048E consists of a direct attachment, 4-terminal pair type fixture which is
equipped with four BNC (m) terminated-coaxial test leads. These test leads are
used to attach user-fabricated test fixtures. Cable length is 4 meter. The 16048E is
shown in Figure 1-1.
Figure 1-1
Product overview
10
Chapter 1
Operation
Specifications
Specifications
Table 1-1
Specifications of the 16048E
Function:
4-terminal pair type fixture which is equipped with four
BNC (m) terminated-coaxial test leads.
Connector Type:
BNC male
Cable Length:
Approximately 4 m
Test Leads Length:
Approximately 3.8 m
Maximum Voltage:
± 40 V peak max. (AC+DC)
Weight:
690 g
Chapter 1
11
Operation
Compensation for Fixture Residual Impedance Error
Compensation for Fixture Residual Impedance Error
The 16048E has inherent stray capacitance, residual inductance, and residual
resistance that affect the accuracy of measured values. To compensate for, or
negate, these residuals to minimize measurement error, the instrument’s
Open/Short compensation procedure should be performed. The procedure is given
in the instrument’s operating manual.
12
Chapter 1
Operation
Operation
Operation
Setup and Measurement Procedure
Setup and measurement procedure is as follows:
1. Connect the 16048E directly to the UNKNOWN terminals and GUARD
terminal of the instrument.
2. Connect the user-fabricated test fixture to the test leads.
3. Perform Open/Short compensation as described in the instrument’s operation
manual.
4. Connect the DUT to the 16048E test fixture.
NOTE
Connect the green lead to the chassis or grounded part on the test fixture to reduce
the effects of stray capacitance between the DUT and the test fixture.
BNC Bracket
A BNC bracket (Agilent PN 16032-60001) is furnished with the 16048E. Figure
1-2 shows an example for using the BNC bracket with the 16048E. By connecting
the 16048E to the BNC bracket, the 16048E’s outer shield conductors are
connected together to construct the four-terminal pair measurement circuit
configuration. For further details about the four-terminal pair measurement refer to
the instrument’s Operation Manual.
Figure 1-2
BNC bracket application
Chapter 1
13
Operation
Operation
14
Chapter 1
2
Service
15
Service
Maintenance
Maintenance
An exploded view of the 16048E (for parts identification) is shown in Figure 2-1
and Figure 2-2. Do not disassemble any further than shown. Maintenance consists
principally of cleaning contacts and replacing worn or damaged parts. Take special
care when cleaning contacts. To order parts, use the Agilent Technologies part
numbers listed in Table 2-1 and Table 2-2. If a faulty part is located in an assembly
that cannot be disassembled, order the next higher assembly or return the whole
device to the nearest Agilent Technologies Sales/Service Office for repair or
replacement.
Figure 2-1
Parts Identification 1/2
16
Chapter 2
Service
Maintenance
Table 2-1
Parts Identification 1/2
Reference
1
Agilent Part No.
Qty.
Description
16048-04013
1
COVER TOP
2360-0192
1
SCREW
2
16048-04014
1
COVER BOTTOM
3
1250-0089
4
CONTACT
4
1250-0052
4
CONNECTOR BNC
5
16047-40000
1
STOPPER
2190-0260
1
WASHER
2200-0013
1
SCREW
16048-61612
1
CABLE ASSEMBLY
0400-0203
1
GROMET
16048-04015
1
COVER TOP
2360-0192
2
SCREW
16048-60002a
1
TEST LEAD (1 through 7)
6
7
8
a. Agilent internal-only part number.
Figure 2-2
Parts Identifications 2/2
Table 2-2
Parts Identification 2/2
Reference
Agilent Part No.
Qty.
Description
9
16032-10021
1
PLATE
10
2360-0115
2
SCREW
11
16032-10022
1
PLATE
Chapter 2
17
Service
Maintenance
Reference
12
13
18
Agilent Part No.
Qty.
Description
1250-0188
4
CONNECTOR BNC
2190-0016
4
WASHER
2950-0001
4
NUT
16032-60001
1
BNC BRACKET (9 through 12)
Chapter 2
REGIONAL SALES AND SUPPORT OFFICES
For more information about Agilent Technologies test and measurement products, applications, services, and
for a current sales office listing, visit our web site: http://www.agilent.com/find/tmdir. You can also contact one
of the following centers and ask for a test and measurement sales representative.
11/29/99
United States:
Agilent Technologies
Test and Measurement Call Center
P.O.Box 4026
Englewood, CO 80155-4026
(tel) 1 800 452 4844
Canada:
Agilent Technologies Canada Inc.
5150 Spectrum Way
Mississauga, Ontario
L4W 5G1
(tel) 1 877 894 4414
Europe:
Agilent Technologies
Test & Measurement
European Marketing Organization
P.O.Box 999
1180 AZ Amstelveen
The Netherlands
(tel) (31 20) 547 9999
Japan:
Agilent Technologies Japan Ltd.
Call Center
9-1, Takakura-Cho, Hachioji-Shi,
Tokyo 192-8510, Japan
(tel) (81) 426 56 7832
(fax) (81) 426 56 7840
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Agilent Technologies
Latin American Region Headquarters
5200 Blue Lagoon Drive, Suite #950
Miami, Florida 33126
U.S.A.
(tel) (305) 267 4245
(fax) (305) 267 4286
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Agilent Technologies Australia Pty Ltd
347 Burwood Highway
Forest Hill, Victoria 3131
(tel) 1-800 629 485 (Australia)
(fax) (61 3) 9272 0749
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Agilent Technologies
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Taikoo Shing, Hong Kong
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(fax) (852)-2506-9284