Agilent Technologies 8156A Operating instructions

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Agilent Technologies GmbH
Herrenberger Str. 130
71034 Böblingen
Germany
Notices
Copyright © 1994-2000 Agilent
Technologies Deutschland GmbH.
All rights reserved.
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 Agilent Technologies,
Inc. as governed by United States
and international copyright laws.
Warranty
The material contained in this
document is subject to change without
notice. Agilent Technologies 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. Agilent
Technologies shall not be liable for
errors contained herein or for
incidental or consequential damages in
connection with the furnishing,
performance, or use of this material.
Edition/Print Date
All Editions and Updates of this
manual and their creation dates are
listed below.
08156-91011: E0500
Second Edition ………… May 2000
First Edition W0194, E0694, E0696,
E1098
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 (see “Service
and Support” on page 9).
ISO 9001 Certification
Produced to ISO 9001 international
quality system standard as part of
Agilent Technologies’objective of
continually increasing customer
satisfaction through improved
process control.
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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 assumes no
liability for the customer’s failure to comply with these
requirements.
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This product is a Safety Class 1 instrument (provided with a
protective earth terminal). The protective features of this product
may be impaired if it is used in a manner not specified in the
operation instructions.
All Light Emitting Diodes (LEDs) used in this product are Class 1
LEDs as per IEC 60825-1.
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This instrument is intended for indoor use in an installation category
II, pollution degree 2 environment. It is designed to operate at a
maximum relative humidity of 95% and at altitudes of up to 2000
meters. Refer to the specifications tables for the ac mains voltage
requirements and ambient operating temperature range.
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Verify that the product is set to match the available line voltage, the
correct fuse is installed, and all safety precautions are taken. Note
the instrument’s external markings described under Safety Symbols.
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To minimize shock hazard, the instrument chassis and cover must
be connected to an electrical protective earth ground. The
instrument must be connected to the ac power mains through a
grounded power cable, with the ground wire firmly connected to an
electrical ground (safety ground) at the power outlet. Any
interruption of the protective (grounding) conductor or
disconnection of the protective earth terminal will cause a potential
shock hazard that could result in personal injury.
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Only fuses with the required rated current, voltage, and specified
type (normal blow, time delay, etc.) should be used. Do not use
repaired fuses or short-circuited fuse holders. To do so could cause
a shock or fire hazard.
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Do not operate the instrument in the presence of flammable gases or
fumes.
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Operating personnel must not remove instrument covers.
Component replacement and internal adjustments must be made
only by qualified service personnel.
Instruments that appear damaged or defective should be made
inoperative and secured against unintended operation until they can
be repaired by qualified service personnel.
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•Adjustments described in this manual are performed with power
supplied to the instrument while protective covers are removed.
Be aware that energy at many points, if contacted, result in
personal injury.
•Do not install substitute parts or perform any unauthorized
modification to the instrument.
•Be aware that capacitors inside the instrument may still be
charged even if the instrument has been connected from its
source of supply.
:$51,1* To avoid hazardous electrical shock, do not operate the instrument
if there are any signs of damage to any portion of the outer
enclosure (covers, panels, and so on).
:$51,1* To avoid the possibility of injury or death, you must observe the
following precautions before powering on the instrument.
–If this instrument is to be energized via an autotransformer for
voltage reduction, ensure that the Common terminal connects
to the earthed pole of the power source.
–Insert the power cable plug only into a socket outlet provided
with a protective earth contact. Do not negate this protective
action by the using an extension cord without a protective
conductor.
–Before switching on the instrument, the protective earth
terminal of the instrument must be connected to a protective
conductor. You can do this by using the power cord supplied
with the instrument.
–It is prohibited to interrupt the protective earth connection
intentionally.
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•The following work should be carried out by a qualified
electrician. All local electrical codes must be strictly observed:
If the plug on the cable does not fit the power outlet, or if the cable
is to be attached to a terminal block, cut the cable at the plug end
and rewire it.
The color coding used in the cable depends on the cable supplied. If
you are connecting a new plug, it should meet the local safety
requirements and include the following features:
•Adequate load-carrying capacity (see table of specifications).
•Ground connection.
•Cable clamp.
:$51,1* To avoid the possibility of injury or death, please note that the
Agilent 8156A does not have a floating earth.
:$51,1* The Agilent 8156A is not designed for outdoor use. To prevent
potential fire or shock hazard, do not expose the instrument to rain
or other excessive moisture.
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:$51,1* The WARNING sign denotes a hazard. It calls attention to a
procedure, practice, or the like, which, if not correctly performed or
adhered to, could result in personal injury. Do not proceed beyond a
WARNING sign until the indicated conditions are fully understood
and met.
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&$87,21 The CAUTION sign denotes a hazard. It calls attention to an
operating procedure, 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. Do not proceed beyond a CAUTION sign until the
indicated conditions are fully understood and met.
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This manual is divided into 4 parts:
•Chapter 1 tells you how to set up your Attenuator.
•Chapters 2 to 6 shows you what you can do with your Attenuator.
•Chapters 7 to 9 show you how you can remotely program your
Attenuator, using GPIB commands.
•The appendices contain additional information not required for
routine day-to-day use.
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Any adjustment, maintenance, or repair of this product must be
performed by qualified personnel. Contact your customer engineer
through your local Agilent Technologies Service Center. You can
find a list of local service representatives on the Web at:
http://www.agilent-tech.com/services/English/index.html
If you do not have access to the Internet, one of these centers can
direct you to your nearest representative:
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