HP EPM E4418A Manuale utente
HP Part no. E4418-90006
Service Guide
HP EPM E4418A/E4419A
(EPM-441A/442A)
Power Meters
4402serv.book Page i Monday, March 11, 2002 11:34 AM
ii HP EPM-441A/442A Service Guide
© Copyright Hewlett-Packard Company
All rights reserved. Reproduction, adaptation, or translation without prior
written permission is prohibited, except as allowed under the copyright
laws.
Printed in the UK.
4402serv.book Page ii Monday, March 11, 2002 11:34 AM
Legal Information
HP EPM-441A/442A Service Guide iii
Legal Information
Notice
Information contained in this document is subject to change without
notice. Hewlett-Packard makes no warranty of any kind with regard to
this material, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose. Hewlett-Packard
shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishings, performance,
or use of this material. No part of this document may be photocopied,
reproduced, or translated to another language without the prior written
consent of HP.
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 Institute’s calibration facility, and to the calibration
facilities of other International Standards Organization members.
Warranty
This Hewlett-Packard instrument product is warranted against defects in
material and workmanship for a period of one year from date of shipment.
During the warranty period, Hewlett-Packard Company will at its option,
either repair or replace products which 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, 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 instructions when properly installed on that instrument.
HP does not warrant that the operation of the instrument, or firmware
will be uninterrupted or error free.
4402serv.book Page iii Monday, March 11, 2002 11:34 AM
Legal Information
iv HP EPM-441A/442A Service Guide
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 of the
environmental specifications for the product, or improper site preparation
or maintenance. NO OTHER WARRANTY IS EXPRESSED OR IMPLIED.
HP 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. HP SHALL NOT BE LIABLE FOR ANY
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY
OTHER LEGAL THEORY.
4402serv.book Page iv Monday, March 11, 2002 11:34 AM
Equipment Operation
HP EPM-441A/442A Service Guide v
Equipment Operation
Warnings and Cautions
This guide uses warnings and cautions to denote hazards.
WARNING A warning calls attention to a procedure, practice or the
like, which, if not correctly performed or adhered to, could
result in injury or the loss of life. Do not proceed beyond a
warning until the indicated conditions are fully
understood and met.
Caution A caution calls attention to a procedure, practice or the like which,
if not correctly performed or adhered to, could result in damage to
or the destruction of part or all of the equipment. Do not proceed
beyond a caution until the indicated conditions are fully
understood and met.
Personal Safety Considerations
WARNING This is a Safety Class I product (provided with a protective
earthing ground incorporated in the power cord). The
mains plug shall only be inserted in a socket outlet
provided with a protective earth contact. Any interruption
of the protective conductor, inside or outside the
instrument, is likely to make the instrument dangerous.
Intentional interruption is prohibited.
If this instrument is not used as specified, the protection
provided by the equipment could be impaired. This
instrument must be used in a normal condition (in which
all means of protection are intact) only.
No operator serviceable parts inside. Refer servicing to
qualified personnel. To prevent electrical shock, do not
remove covers.
For continued protection against fire hazard, replace the
line fuse(s) only with fuses of the same type and rating (for
example, normal blow, time delay, etc.). The use of other
fuses or material is prohibited.
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Equipment Operation
vi HP EPM-441A/442A Service Guide
General Safety Considerations
WARNING Before this instrument is switched on, make sure it has
been properly grounded through the protective conductor
of the ac power cable to a socket outlet provided with
protective earth contact.
Any interruption of the protective (grounding) conductor,
inside or outside the instrument, or disconnection of the
protective earth terminal can result in personal injury.
Caution Any adjustments or service procedures that require operation of
the instrument with protective covers removed should be
performed only by trained service personnel.
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.
This is the symbol of an Industrial Scientific and
Medical Group 1 Class A product.
The CSA mark is a registered trademark of the
Canadian Standards Association.
External Protective Earth Terminal.
While this is a Class I product, provided with a
protective earthing conductor in a power cord, an
external protective earthing terminal has also been
provided. This terminal is for use where the earthing
cannot be assured. At least an 18AWG earthing
conductor should be used in such an instance, to
ground the instrument to an assured earth terminal.
ISMGroup 1
Class A
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Equipment Operation
HP EPM-441A/442A Service Guide vii
IEC 1010-1 Compliance
This instrument has been designed and tested in accordance with IEC
Publication 1010-1 +A1:1992 Safety Requirements for Electrical
Equipment for Measurement, Control and Laboratory Use 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.
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List of Related Publications
viii HP EPM-441A/442A Service Guide
List of Related Publications
The HP EPM-441A and HP EPM-442A User’s Guides are also available in
the following languages:
• English Language User’s Guide - Standard
• German Language User’s Guide - Option ABD
• Spanish Language User’s Guide - Option ABE
• French Language User’s Guide - Option ABF
• Italian Language User’s Guide - Option ABZ
• Japanese Language User’s Guide - Option ABJ
HP EPM-441A/442A Service Guide is available by ordering Option 915.
HP EPM-441A/442A CLIPs (Component Location and Information Pack)
is available by ordering E4418-90007.
4402serv.book Page viii Monday, March 11, 2002 11:34 AM
Sales and Service Offices
HP EPM-441A/442A Service Guide ix
Sales and Service Offices
If you need technical assistance with a Hewlett-Packard test and
measurement product or application please contact the Hewlett-Packard
office or distributor in your country.
Asia Pacific:
Hong Kong: (852) 2599 7889
India: (91-11) 647 2311
Japan:
Hewlett-Packard Japan Ltd.
Measurement Assistance Center
9-1, Takakura-Cho, Hachioji-Shi,
Tokyo 192, Japan
Tel: (81-426) 56-7832
Fax: (81-426) 56-7840
Korea: (82-2) 769 0800
Malaysia: (60-3) 291 0213
Philippines: (63-2) 894 1451
PRC: (86-10) 6505 0149
Singapore: (1800) 292 8100
Taiwan: (886-3) 492 9666
Thailand: (66-2) 661 3900
For countries in Asia Pacific not listed contact:
Hewlett-Packard Asia Pacific Ltd.
17-21/F Shell Tower, Times Square,
1 Matheson Street, Causeway Bay,
Hong Kong
tel: (852) 2599 7070
fax: (852) 2506 9285
4402serv.book Page ix Monday, March 11, 2002 11:34 AM
Sales and Service Offices
x HP EPM-441A/442A Service Guide
Australia/New Zealand:
Hewlett-Packard Australia Ltd.
31-41 Joseph Street
Blackburn, Victoria 3130
Australia
1 800 629 485
Canada:
Hewlett-Packard Canada Ltd.
5150 Spectrum Way
Mississauga, Ontario
L4W 5G1
(905) 206 4725
In Europe, Africa and Middle East please call your local HP sales office or
representative:
Austria: (1) 25000-0
Belgium and Luxembourg: (02) 778 3417
Baltic Countries: (358) 08872 2100
Czech Republic: (0042) 2-4743111
Denmark: 45 99 10 00
Finland: (90) 88 721
France: (0) 1 69.29.41.14
Germany: (0180) 532 62-33
Greece: (1) 7264045
Hungary: (1) 252 4705
Ireland: (01) 284 4633
Israel: (03) 5380 333
Italy: 02 - 92 122 241
Netherlands: (020) 547 6669
Norway: (22) 73 56 50
Poland: (22) 608 7700
4402serv.book Page x Monday, March 11, 2002 11:34 AM
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