Agilent Technologies 16452A Manuale operativo

Agilent 16452A Liquid T

est Fixture

Operation and Service Manual

Agilent Part No. 16452-90000

Printed in JAPAN January 2000

Third Edition

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Notice

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 T

echnologies .

Agilent T

echnologies Japan, Ltd.

Component T

est PGU-Kobe

1-3-2, Murotani, Nishi-ku, Kobe-shi,

Hyogo

,651-2241 Japan



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Manual Printing History

The manual printing date and part number indicate its current edition. The printing date

changes when anew 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.

January 1994

::::::::

::::::::::::::::::::: :: ::::::::

First Edition (part number: 16452-90000)

June 1996

:::::::: :: ::::::::::::::::::::: :: :: ::::::

Second Edition (part number: 16452-90000)

January 2000

::::::::::

::::::::::::::::::::::: :: :::::

Third Edition (part number: 16452-90000)

iii

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Safety Summary

The following general safety precautions must be observed during all phases of operation,

service

,and repair of this instrument. F

ailure to comply with these precautions or with specic

ARNINGS

given elsewhere in this manual violates safety standards of design, manufacture,

and intended use of the instrument.

The A

gilent T

echnologies assumes no liability for the customer's failure to comply with these

requirements

DO NOT Operate In An Explosive Atmosphere

Do not operate the instrument in the presence of ammable gasses or fumes

.Operation of any

electrical instrument in such an environment constitutes asafety hazard.

eep A

way From Live Circuits

Operating personnel must not remove instrument covers

. Component replacement and internal

adjustments must be made by qualied maintenance personnel. Do not replace components

with the power cable connected. Under certain conditions

,dangerous voltages may exist even

with the power cable removed. T

oavoid injuries

,always disconnect power and discharge

circuits before touching them.

DO NOT Service Or A

djust Alone

Do not attempt internal service or adjustment unless another person, capable of rendering rst

aid and resuscitation, is present.

DO NOT Substitute P

arts Or Modify Instrument

Because of the danger of introducing additional hazards

,do not substitute parts or perform

unauthorized modications to the instrument. Return the instrument to aAgilent T

echnologies

Sales and Service Oce for service and repair to ensure the safety features are maintained.

Dangerous Procedure Warnings

Warning

s, 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 present in this

instrument. Use extreme caution when handling, testing, and adjusting

this instrument.

The voltage levels found in this test xture when used with the intended instruments do not

warrant more than normal safety precautions for operator safety

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Operating Precaution

Do not exceed the operating input power, voltage, and current level and signal type

appropriate for the instrument being used, refer to your instrument's operation manual.

Caution

Electrostatic discharge (

esd

)candamage the highly sensitive microcircuits in

your instrument. ESD damage is most likely to occur as the test xtures are

being connected or disconnected. Protect them from ESD damage by wearing a

grounding strap that provides ahigh resistance path to ground. Alternatively

ground yourself to discharge any static charge built-up by touching the

outer shell of any grounded instrument chassis before touching the test port

connectors.

Never touch the test xture contacts

Use a work station equipped with an anti-static work surface

Certication

Agilent T

echnologies certies that this product met its published specications at the time

of shipment from the factory

.Agilent T

echnologies further certies that its calibration

measurements are traceable to the United States National Institute of Standards and

echnology

,to the extent allowed by the Institution's calibration facility

,or

to the calibration

facilities of other International Standards Organization members

arranty

This Agilent T

echnologies instrument product is warranted against defects in material and

workmanship for aperiod of three months from the date of shipment, except that in the case

of certain components listed in

Instrument Specications

of this manual, the warranty shall be

for the specied period. During the warranty period, Agilent T

echnologies will, at its option,

either repair or replace products which prove to be defective

or warranty service or repair

, this product must be returned to aservice facility designated

by Agilent Technologies . Buyer shall prepay shipping charges to Agilent T

echnologies

and Agilent T

echnologies 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 T

echnologies from another country

Agilent T

echnologies warrants that its software and rmware designated by

Agilent T

echnologies for use with an instrument will execute its programming instruction when

property installed on that instrument. Agilent T

echnologies does not warrant that the operation

of the instrument, or software

,orrmware will be uninterrupted or error free

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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 modication or

misuse

,operation outside of the environmental specications for the product, or improper site

preparation or maintenance

No other warranty is expressed or implied. A

gilent T

echnologies specically disclaims the

implied warranties of merchantability and tness 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.

Assistance

Product maintenance agreements and other customer assistance agreements are available for

Agilent T

echnologies products

or any assistance

,contact your nearest Agilent T

echnologies Sales and Service Oce

ddresses are provided at the back of this manual.

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Safety Symbols

General denitions of safety symbols used on equipment or in manuals.

Instruction manual symbol: the product is marked with this symbol when it is

necessary for the user to refer to the instruction manual in order to protect

against damage to the instrument.

Indicates dangerous voltage (terminals fed from the interior by voltage

exceeding 1000 volts must be so marked).

Protective conductor terminal. F

or protection against electrical shock in case

of afault. Used with wiring terminals to indicate the terminal which must be

connected to ground before operating equipment.

Low-noise or noiseless, clean ground (earth) terminal. Used for asignal

common, as well as providing protection against electrical shock in case of

fault. Aterminal marked with this symbol must be connected to ground in the

manner described in the installation (Operation) manual, and before operating

the equipment.

Frame or chassis terminal. Aconnection to the frame (chassis) of the

equipment which normally includes all exposed metal structures

Alternating current (power line).

Direct current (power line).

Alternating or direct current (power line).

arning

denotes ahazard. It calls attention to aprocedure

,practice, condition

or the like

,which, if not correctly performed or adhered to

,could result in

injury or death to personnel.

Caution

sign denotes ahazard. It calls attention to aprocedure

,practice

condition or the like

,which, if not correctly performed or adhered to

,could

result 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.

vii

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Typeface Conventions

Italics

Italic type is used for emphasis and for titles of manuals and other

publications

Italic type is also used for keyboard entries when anameor a variable

must be typed in place of the words in italics

.For example:

copy

lename

means to type the word

copy

,to type aspace, and then to

type the name of ale such as

file1

Computer

Computer font is used for on-screen prompts and messages.

HARDKEYS

Labeled keys on the instrument front panel are enclosed in

NNNNNNNNNNNNNNNNNNNNNNNNNN

SOFTKEYS

Softkeys located to the right of the CRT are enclosed in

NNNNN

viii

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Contents

1. General Information

Introduction ....................

.........1-1

Manual Summary ..................... .. .. ....1-1

Product Description .....................

....1-1

Applicable Instrument ..................... .. .. ...1-1

Accessories ..................... .. .. ........1-2

Furnished A

ccessories ................ .. .. .......1-2

Recommended Measurement Cables

.................

.1-2

Specications ..................

............1-2

Supplemental P

erformance Characteristics ..................1-4

2. Initial Inspection

Introduction ..................

.........2-1

Product Overview ...................

.........2-2

Repackaging the T

est Fixture F

or Shipment .............

...2-4

3. Operation

Introduction ..............

...................3-1

Measurement Sequence ..............

............3-1

Measurement Requirements ...............

.........3-1

Preparation of T

est Fixture for Use ......................3-2

Connecting the SMA-BNC A

dapters to the 16452A . .. ...........3-2

Separating the T

est Fixture into High and Low Electrodes . .........3-3

Cleaning and Drying the Electrodes ....

...............3-3

Assembling the T

est Fixture ..

................3-4

Putting the Lid On the Liquid Outlet .... .. ..............3-4

Connecting the T

est Fixture ....

.................3-5

Using the 4194A ..

...................

.3-5

Using the 4284A/4285A ..

..................... . 3-6

Fixture Stand Usage .... .. .. .............

... 3-7

Checking the SHORT Residual .......

............

.....3-8

Using the 4194A . . . . . . . . . . . ................... 3-8

Using the 4284A/4285A ....................

...... 3-8

If the SHORT Residual is Out of Range .. .. .. .. .. .. .. .. ... 3-9

Setting the Instrument for Capacitance Measurement .... .. .. .. .. . 3-9

Using the 4194A . . . . . . . . . . . . . . . . . . . . . . . ....... 3-9

Using the 4284A/4285A ......................... . 3-9

Performing a SHORT Compensation . . . . . . ................ 3-10

Using the 4194A . . . . . . . . . ..................... 3-10

Using the 4284A/4285A .......................... 3-10

Air Capacitance (C

) Measurement ...................... 3-11

Liquid Capacitance and Resistance (Cp, Rp) Measurement . . .. .. .. .. . 3-12

Drain the Liquid (After Measurement) .................... 3-14

Data Processing|Calculate Dielectric Parameter from Measurement Data .. .. 3-15

Measurement Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Capacitive Measurement Method ..................... 3-15

Contents-1

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Correction Coecient . ..

............... .. .. .. . 3-16

erforming T

emperature Measurements ...........

. 3-17

4. Service

Introduction ..

...............

......4-1

Assembly Replacement . ................... .. .. .. ..4-1

Electrode Assembly ..............

........4-4

Assembling Procedure for Electrode .............. .. .. ..4-5

Troubleshooting .................

..........4-6

A. Liquids that Corrode the T

est Fixture

Nickel Corrosive Liquid ...........

............A

-1

Ceramic (alumina :Al

)Corrosive Liquid ...........

.....A

-2

Viton (Fluoro rubber) Corrosive Liquid .........

.....A

-2

Silver-copper and gold-copper ............. .. .. .......A

-2

Contents-2

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