HP 16048E Test Leads
Operation Manual
Second Edition
Hewlett-Packard Japan, LTD.
HP PN 16048-90041
November 1998
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
Hewlett-Packard Company.
Hewlett-Packard Japan, LTD.
Kobe Instrument Division
1-3-2, Murotani, Nishi-Ku, Kobe-shi, Hyogo, 651-2241 Japan
© Copyright 1992,1998 Hewlett-Packard 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
November 1998 Second Edition
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 speci fic WARNINGS elsewhere in this manual may im pair the
protection provided by the equipment. In addition it violates safety standards of
design, manufacture, and intended use of the instrument.
The Hewlett-Packard Company assumes no liability for the customer’s failure to
comply with these requirements.
• 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.
2
• 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 component s with the power ca ble 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 servi ce or adjus tment unl ess ano ther pe rson, ca pab le 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 unau thorized mod ifications to the instrument.
Return the in strument to a Hewlett-Packard Sales and Service Office for
service and repair to ensure that safety features are maintained.
WARNING
• Dangerous Procedure Warnings
Warnings, such as the example below, precede potentially dangerous
procedures throughout this manual. Instructions contained in the warnings
must be followed.
Dangerous voltages, c apabl e o f ca usi ng de ath, are presenting thi s inst rument .
Use extreme caution when handling, testing, and adjusting this instrument.
Certification
Hewlett-Packard Company certifies that this product met its published
specifications at the time of shipment from the factory. Hewlett-Packard 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 faciliti es of othe r Inte rnationa l
Standards Organization members.
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Warranty
This Hewlett-Packard instrument product is warranted against defects in material
and workmanship for a peri od 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, Hewlett-Packard 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 HP. Buyer shall prepay shipping charges to HP and HP shall pay
shipping charges to return the product to Buyer. However, Buyer shall pay all
shipping charges, duties, and taxes for products returned to HP from another
country.
HP warrants that its software and firmware designated by HP for use with an
instrument will execute its programming instruction when property installed on
that instrument. HP does not warrant that the operation of the instrument, or
software, or firmware will be uninterrupted or error free.
IMPORTANT
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.
No other warranty is expressed or implied. HP specifical ly 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. HP shall
not be liable for a ny direct, indirect, sp eci al , i nci dental, or consequential da mages ,
whether based on contract, tort, or any other legal theory.
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Assistance
Product maintenance agreements and other customer assistance agreements are
available for Hewlett-Packard products.
For any assistance, co ntact your neare st Hewlett-Packard Sales and Serv ice 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
CAUTION
NOTE
This warning sign denotes a h azard. It calls at tention to a pr o cedur e, practic e,
condition or the like, which, if not correctly performed or adhered to, could
result in injury or death to personnel.
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 denotes important information. It calls attention to a procedure, practice,
condition or the like, which is essential to highlight.
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Contents
1. Operation
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Compensation for Fixture Residual Impedance Error . . . . . . . . . . . . . . . . . . . . . 12
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Setup and Measurement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
BNC Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2. Service
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7
Contents
8
1 Operation
This operating note provides complete information on the HP 16048E Test Leads.
The HP 16048E is shown in Figur e 1 -1, its physical dimension s ar e g ive n in T a bl e
1-1. To order addit ional copies of t his op erati ng not e, use the pa rt numbe r li sted o n
the rear cover.
9
Operation
Product Description
Product Description
The HP 16048E consists of a direct at tac hment , 4-t er mi na l pai r ty pe fi xt ure which
is equipped w ith four BNC (m) terminated-coaxial test leads. These test leads are
used to attach user-fa bricated te st fixtures. Cabl e length is 4 meter. The HP 16048E
is shown in Figure 1-1.
Figure 1-1 Product overview
10 Chapter 1
Specifications
Table 1-1 Specifications of the HP 16048E
Operation
Specifications
Function:
4-terminal pair type fixture which is equipped with four BNC (m) terminated-coaxial test leads.
Connector Type: BNC male Cable Leng th: Approximatel y 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 HP 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 compensati on p roc edure 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 HP 16048E directly to the UNKNOWN terminals and GUARD terminal of th e instrument.
2. Connect the user-fab ricated test fixture to th e test leads .
3. Perform Open/Short compensation as described in the instrument’s operation manual.
4. Connect the DUT to the HP 16048E test fixture.
NOTE Connect the green lead to t he cha ssis or grounded part on the test f ixt ur e to r edu ce
the effects of stray capacitance between the DUT and the test fixture.
BNC Bracket
A BNC bracket (HP PN 16032-60001) is furnished with the HP 16048E. Figure
1-2 shows an example for using the BNC bracket with the HP 16048E. By
connecting the HP 16048E to the BNC bracket, the HP 16048E’s outer shield
conductors are connec ted togeth er to con struct th e four-te rminal pair measureme nt
circuit configuration. For further details abo ut th e four-terminal pair measurem ent
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 HP 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 Hewlett-Packard
part numbers listed in Table 2-1 and Table 2-2. If a faulty part is located in an
assembly that cannot be di sassemble d, order the next highe r assembly or return t he
whole device to the ne arest Hewlett-Packard Sales/Service Office for repair or
replacement.
Figure 2-1 Parts Identification 1/2
16 Chapter 2
Table 2-1 Parts Identification 1/2
Reference HP Part No. Q ty. Description
1 16048-04013 1 COVER TOP
2 16048-04014 1 COVER BOTTOM 3 1250-0089 4 CONTACT 4 1250-0052 4 CONNECTOR BNC 5 16047-40000 1 STOPPER
6 16048-61612 1 CABLE ASSEMBLY
Service
Maintenance
2360-0192 1 SCREW
2190-0260 1 WASHER 2200-0013 1 SCREW
0400-0203 1 GROMET
7 16048-04015 1 COVER TOP
8 16048-60002 1 TEST LEAD (1 through 7)
Figure 2-2 Parts Identifications 2/2
Table 2-2 Parts Identification 2/2
Reference HP Part No. Q ty. Description
2360-0192 2 SCREW
9 16032-10021 1 PLATE 10 2360-0115 2 SCREW 11 16032-10022 1 PLATE
Chapter 2 17
Service
Maintenance
Reference HP Part No. Q ty. Description
12 1250-0188
2190-0016
2950-0001
13 16032-60001 1 BNC BRACKET (9 through 12)
4
4
4
CONNECTOR BNC
WASHER
NUT
18 Chapter 2
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