HP 4328A Manuale di servizio

OPERATir

•

Return this manual

to

Kobe

Agilent Technologies International, Inc.

1-3-2

Murotani Nishiku Kobe

Japan,

651-2241

Attention:

Ayumi

Sakamoto

TEL:81-78-993-2883

MILLIOHMMETER

4328A

I 30

LINE

IQO

'ON

OFF

'FAST

11

,~HAfiG£1,

'·.~'

HEWLETT

PACKARD

SAFETY SUMMARY

T~e

following

general

safety

precautions

must

be

observed

during

all

phases

of

op-

eration,

service,

and

repair

of

this

instrument.

Failure

to

comply

with

these

pre-

cautions

or with

specific

warnings

given

elsewhere

in

this

manual

violates

safety

standards

of

design,

manufacture,

and

intended

use

of

the

instrument.

Hewlett-

Packard

Company e.ssumes

no

liability

for

the

customer's

failure

to

comply

with

these

requirements.

GROUND THE INSTRUMENT

To

minimize

shock

hazard,

the

instrument

chassis and

cabinet

must

be

connected

to

an

electrical

ground.

The

instrument

is

equipped with a

three-conductor

ac

power

cable.

The power

cable

must

either

be

plugged into

an

approved

three-contact

electrical

outlet

or

used

with

a

three-contact

to

two-contact

adapter

with

the

grounding wire (green)

firmly

connected

to

an

electrical

ground

(safety

ground)

at

the

power

outlet.

The

power

jack

and

the

mating

plug

of

the

power

cable

meet

International

Electrotechnical

Commission (IEC)

safety

standards.

DO NOT OPERATE IN

AN

EXPLOSlVE ATMOSPHERE

Do

not

operate

the

instrument

in

the

presence

of

flammable

gases

or fumes.

Op-

eration

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

power

cable

connected.

Under

certain

conditions,

dan-

gerous

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

any

unauthorized

modification

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.

DANGEROUS PROCEDURE WARNINGS

Warnings,

such

as

the

throughout

this

manual.

example

below,

precede

potentially

dangerous

procedures

Instructions

contained

in

the

warnings

must

be

followed.

WARNING

Dangerous

voltages,

capable

of

causing

death,

are

present

in

this

instru-

ment.

Use

extreme

caution

when handling,

testing,

and

adjusting.

Ct

•

SAFETY

SYMBOLS

General

Definitions

of

Safety

Symbols Used On

Equipment

or

In

Manuals.

~

..l...

oR@

-

~

rh

OR

.L

WARNING

CAUTION

Note

Instruction

manual symbol:

the

product

will

be

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

ex:ceeding 1000

volts

must

be

so marked).

Protective

conductor

terminal.

For

protection

against

electri-

cal

shock in

case

of

a

fault.

Used

with

field

wiring

terminals

to

indicate

the

terminal

which

must

be

connected

to

ground

before

operating

e4uipment.

Low-noise

or

noiseless,

clean

ground

(earth)

terminal.

Used

for

a signal

common,

as

well

as

providing

protection

against

elec-

trical

shock

in

case

of

fault.

A

terminal

marked

with

this

symbol

must

be

connected

to

ground in

the

manner

described

in

the

installation

(operating) manual,

and

before

operating

the

equipment.

Frame

or

chassis

terminal.

A

connection

to

the

frame

(chas-

sis)

of

the

equipment

which

normally

includes

all

exposed

metal

structures.

Alternating

current

(power line).

Direct

current

(power line).

Alternating

or

direct

current

(power line).

A WARNING

denotes

a

hazard.

It

calls

attention

to

a

pro-

cedure,

practice,

condition

or

the

like, which,

if

not

correctly

performed

or

adhered

to,

could

result

in

injury or

death

to

personnel.

The CAUTION sign

denotes

a

hazard.

It

calls

attention

to

an

operating

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.

A Note

denotes

important

information.

It

calls

attention

to

a

procedure,

practice,

condition

or

the like, which is

essential

to

highlight.

•

I

1111

•

Herstellerbescheinigung

Hiermit

wird

bescheinigt,

daB

das

Geriit

HP

4328A

Milliohmmeter

in

Ubereinstimmung

mit

den

Bestimmungen

von

Postverfiigung

1046/84

funkentstort

ist.

Der

Deutschen

Bundespost

wurde

das

Inverkehrbringen

dieses

Gerates

angezeigt

und

die

Berechtigung

zur

Uberpriifung

der

Serie

auf

Einhaltung

der

Bestimmungen

eingeraumt.

Anm:

Werden

Mef3-

und

Testgedite

mit

ungeschiunten

Kabeln

und/oder

in

offenen

Me6aufbauten

verwendet,

so ist vom

Bet

rei

her

slcherzustellen,

daB die

Funk-

Entstorbestimmungen

unter

Betriebsbedingungen

an

seiner

Grundstiicksgrenze

eingehalten

werden.

GERAUSCHEMISSlON

Lpa

< 70

dB

am

Arbeitsplatz

normaler

Betrieb

nach

DIN

45635

T.

19

Manufacturer's Declaration

This

is

to

certify

that

this

product,

the

HP

4328A

Milliohmmeter,

meets

the

radio

frequency

interference

requirements

of

directive

1046/84.

The

German

Bundespost

has

been

notified

that

this

equipment

was

put

into

circulation

and

was

granted

the

Iight

to

check

the

product

type

for

compliance

with

these

requirements.

Note:

If

test

and

measurement

equipment

is

operated

with

unshielded

cables

and/or

used

for

measurements

on

open

set-ups,

the

user

must

insme

that

under

these

operating

conditions,

the

radio

frequency

interference

limits

are

met

at

the

border

of

his premises.

ACOUSTIC

NOlSE

EMISSION

Lpa

< 70

dB

operator

position

normal

operation

per

ISO

7779

''I'

I

•

I'

•

MANUAL

CHANGES

HP 4328A

MILLIOHMMETER

r--

MANUAL IDENTIFICATION -

Model

Number: HP 4328A

Date Printed: MAR.

1989

Part Number: 04328-90008

Thl1 1upr.lomonl eontalno Information for correcting

manual

erron

and

for

adapting

tho

manual

to nowor

lnotNmonle

thai

oonlaln lmprovomonto

or

modH

calion•

not

documented

In tho oxletlng

manual

fo

uM

thll

•upplemont

1

..

Make all ERRATA correction•

2

..

Mako all appropriate

..

rial-number-related

change•

listed below

SERIAL PREFIX OR NUMBER MAKE MANUAL CHANGES SERIAL PREFIX OR NUMBER MAKE MANUAL

CHANGES

ALL

1

1828J07291 and above 2

1828J07961 and above 3

1828J09594 and above 4

.., New

Item

ERRATA

Page 5-7. Figure 5-3,

{900

+

j1800)

Impedance:

Change the Part Number for the INDUCTOR

to

9100-1686.

..,

Page 3-6, Paragraph 3-43, NOTES ON OPERATION:

Add the

followmg

NOTE

to

paragraph 3-45

..

NOTE

An erroneous measurement reading can

occur

if

both

leads 1n

one

probe

and

the

current lead

only

on

the

other

probe makes

contact

with the device

under

test.

Under this condition, the

meter

may

mdicate approximately

mid

scale

on

any

meter

range selected. You can verify i! the measurement readmg

1s

correct

by

checking

if

the resistance measurement at

two

different ranges differ by

more

than 50 %

of

the

indicated value.

NOTE

Manual

change

supplements

are

revised

as

often

as

necesury

to

keep

manuals

••

current

and

accurate

••

ponlllle

Hewlaii-Packard

recommend•

that

you periodically

reqUII'SI

the

latest

edition of lhls supplement Free

copies

are

avallallle lrom all

HP

offices. When

requullng

coploa.

quote

the

manualldenllllcallon

Information rrom your oupplement, or

the

model

number

and

print

dale

from

the

IIIIo page of tho

manual

.

Oate/Div: MARCH 1

0,

1989/33

Page: 1

of

4

PRINTED IN

JAPAN

Flp11HEWLETT

~~PACKARD

,,

L

• Page 5-2, Paragraph 5-13, 4328A PERFORMANCE CHECKS:

Add the following NOTE to paragraph 5-14.

NOTE

Before starting the Performance Check for the 4328A Option 001 , confirm

that

the

battery has enough charge by pressing the BATT. TEST button. If the pointer

of

meter is out

of

the

BAT.

CHARGED range on the meter scale, recharge the battery

following the instructions given in Paragraph 3-9. The 4328A Option

001

will

not

operate properly, if the battery does not have enough charge.

CHANGE 1

..,.

Section 6, Replaceable Parts, Table 6-2, Reference Designation Index:

See Table 1, Parts Information.

CHANGE 2

Section 6, Replaceable Parts, Table 6-2, Reference Designation Index:

See Table 1, Parts Information.

Page 4-7, Figure 4-5 and Page 8-19, Figure 8-17,

A2

PHASE-SENSITIVE AMPLIFIER

Assy.:

Change the value

of

R230" to 56k0.

Page 8-21, Figure 8-19:

Change the value

of

R3

to 33k0.

Page 8-23, Figure 8-21:

Change the value

of

R3

to 33k0.

CHANGE 3

Page 6-8, Table 6-2, Reference Designation Index:

See Table 1, Parts Information.

Page 8-17, Figure 8-14:

A3

OSCILLATOR Assy.

Change the value

of

R335 to 133kn.

-

2-

---

---~~-~--

---··~-~----------------

'

•

Page 6-5, Table 6·2, Reference Designation Index:

See Table 1, Parts Information.

Page 4-7, Figure 4-5

and

Page 8-19, Figure 8-17,

A2

PHASE-SENSITIVE AMPLIFIER

Assy.:

•

Change the value

of

R234

to

3.16kn-

• • 3 •

'II

I

I'

I

'I

CHANGE

1

2

3

4

PAGE NOTE

6-7

...

c

6-11

...

c

6-5 D

A

6-11 D

A

D

A

6-8 D

A

6-5 D

A

"': NEW ITEM

A:

Added

D:

Deleted

C:

Change

Table 1. Parts Information

REFERENCE

HP

DESIGNATION PART NUMBER

A3Q312 1853-0314

F1

2110-0234

*

A2R230 0698-3161

*

A2R230 0698-5635

DS1

1450-0566

DS1

1450-0613

R3 0683-4735

R3 0683-3335

A3R335 0683-1545

A3R335 0698-3451

*

A2R234 0757-0439

*

A2R234 0757-0279

I

L

-4-

DESCRIPTION

TRANSISTOR: SILICON

FUSE SLOW

BLOW

100mAT

R:

FXD

38.3k!l

1%

1/8W

R:

FXD

56k!l

1%

1/8W

LAMP: INDUCTOR

R:

FXD

COMP

471<0

5%

.25W

R:

FXD

COMP

33k0

5%

.25W

R:

FXD

COMP

150k0

5%

1/4W

R:

FXD

COMP

1331<01%

1/8W

R:

FXD 6.811<01%

1/8W

R:

FXD

3.16k0

1%

1/8W

·t~.·"''

r

~

I I

f'

,,,

I'

OPERATING

AND

SERVICE

•

MODEL

4328A

MILLIOHMMETER

SERIALS

18:.'8J06-t21

AIHJ

ABO\/E

See Sect•on

VII

for Other Serial Prefixes.

"~'

COPYRIGHT

YOKOGAWA

HEWLETT·PACKARD,

LTD

1967

9-1,

TAKAKURA.CHO,

HACHIOJI-SHI,

TOKYO,

JAPAN

Manual

Part

No.

04328-90008

Microfiche

Part

No.

04328-90058

MANUAL

Prmted : MAR 1989

Ff/OW

HEWLETT

~~PACKARD

Table

o[

Contents

Model

4328A

TABLE

OF

CONTENTS

Section

Page

I

GENERAL

INFORMATION

. . . . . . . . .

1-1

1-1.

Description

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

1-1

1-9.

Accessories

Furnished

...........

1-9

1-11.

Instrument

Identification

. . . . ,

....

1-2

1-13.

Manual

Changes

....

,

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

1-2

U

INSTALLATION

....

,

......

,

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

2-1

2-1.

Introduction

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

2-1

2-3.

Unpacking

and

Inspection

..

,

.....

,

2-1

2-5.

Storage

and

Shipment

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

2-1

2-6.

Packaging

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

,.

2-1

2-7.

Environment

. .

_......

2-1

2-8.

Installation

, . . . . . . . . . . . . . . . . . . . .

2-1

2-10.

Combining

Case

......

,

2-1

2-12.

Adapter

Frame

, . . .

2-1

2-14.

Power

Connection

. , . . . . . . . . . .

2-1

2-15.

Line

Voltage

. . . .

..

. . . .

2-1

2-16.

Power

Cable

. . . . .

..

. . . .

2-1

III

OPERATION

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

, . . .

3-1

3-1.

Introduction

. . . . . .

..

. . . . .

..

3-1

3

-4..

Controls,

Connectors,

and

Indicators

. . . . . _. . . . . . . . . . .

3-1

3-6.

Battery

Operation

,

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

3-1

3-10.

Instrument

Temperature

Range

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

3-1

3-12.

Measurement

3-1

3-15.

Operating

Procedure

. . . . . . . . . . .

3-1

3-17.

Measuring

Voltage

on

Samples

. . . . .

3-1

3-21.

Applied

Current

on

Samples

and

Ma..ximum

Power

Dissipation

.....

3-5

3-24.

Effect

of

Series

Reactance

of

Samples

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

, _. . .

3-5

3-26.

DC

Bias

Superimposed

, . . . . . .

...

3-5

3-30.

Recorder

Output

. . . . . . . . .

..

. . . . . .

3-5

3-32.

Probe

Connection

. . . . .

_........

.

3-5

3-33.

General

..........

, . . . . . . . . .

3-5

3-35.

Probe

InstallatiOn

. . . . . . . . . .

3-6

3-37.

16005A

Clip-Type

Probe

. . . . . .

3-6

3-39.

16006A

Pin-Type

Probe

. . .

..

. .

3-6

3-41.

16007A

B

Test

Leads

....

_

....

3-6

3-43

Notes

on

Operation

....

, . . .

3-6

3-44

In

using

the

1

and

3m

Ohm

Ranges,

Connection

o[

Current

Terminals

to

the

Sample

must

be

a

Firm,

Positive

Contact

. . . . .

..

. . . . . .

3-6

3-46.

In

using

the

1

and

3m

Ohm

Range,

Large

Electrically

Conductive

Matedals

should

not

be

placed

close

to

the

Probe

or

their

Cables

3-6

3-48.

Changing

Test

Lead

Length

. . . .

3-7

IV

THEORY

OF

OPERATION

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

_

4-1

4-1.

Introduction

,.

_

......

,.

. . . . . . . .

..

. .

4-1

4-4.

Simplified

Functional

DescriptiOn

4-1

4-7.

Oscillator

Circuit

. , _. . .

4-2

4-10.

Schmitt

Trigger

Cucuit

. . . . . .

4-2

ii

Section

Page

IV

THEORY

OF

OPERATION

(Cont'd)

4-12.

20mV

Peak

Limiter

. . . .

4-2

4-14.

Phase

Sensitive

Voltmeter.

. . .

4-2

V

MAINTENANCE

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

, . . . . . .

5-1

5-l.

[ntroduction

. ,

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

5-1

5-3.

Contents

. . . . . . . .

..

. . . . . .

5-1

5-4.

Performance

Checks

..........

5-1

5-6.

Adjustments

.....

_

...........

,

5-1

5-9.

Test

Equipment

......

, . . .

..

.

5-1

5-11.

Maintenance

..........

·-······.

5-2

5-13.

4328A

Performance

Checks

. . . . .

..

.

5-2

5-15.

Mechamcal

Meter

Zero

. . .

..

.

5-2

5-17.

Linearity

Check

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

, .

5-2

5-18.

Full

Scale

Check

.

..

.

..

. . .

5-2

5-19..

Cover

Removal

and

Replacement.

5-2

5-21.

Top

Cover

Removal

..

. . . . . . . . .

5-2

5-22.

Top

Cover

Replacement

. . . .

5-2

5-23.

Bottom

Cover

Removal

..

,

.....

5-3

5-24.

Bottom

Cover

Replacement

5-3

5-25.

Adjustment

Procedures

. . . . . . . . . .

5-3

5-27.

Mechanical

Meter

Adjustment

..

5-3

5-28.

DC

Power

Supply

Check

5-3

5-30.

Bias

AdJustment

,

...

,

......

_

..

5-3

5-32.

T302

Adjustment

...........

, _...

5-3

5-33.

Oscillator

Output

Adjustment

..

5-3

5-34.

Electrical

Zero

Adjustment

. . .

5-3

5-35.

Lmeanty

Adjustment

.........

5-3

5-36.

Full

Scale

Adjustment

........

5-4

5-37.

Recorder

Output

Adjustment

...

5-4

5-38.

Reactance

Component

Offset

Adjustment

........

,.

.

...

, , . . . .

5-4

5-39.

Isolating

Trouble

in

Transistor

Circuits

.....

, . . .

..

. .

5-5

5-40..

General

. . . . . . . . . . .

..

. . . , . . .

5-5

5-41.

In

Circuit

Testing

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

5-5

5-45.

Out-of-Circuit

Testing

........

5-5

5-47.

Component

Replacement

m

Etched

Circuits

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

5-5

5-48.

General

.

..

. .

..

.

..

.

5-5

5-49.

Axial-Lead

Components

, . . . . . .

5-5

5-51.

Other

Components

5-5

Vl

REPLACEABLE

PARTS

. .

.. ..

.

..

6-1

6-1.

Introduction

.....

, . . . . .

6-1

6-4.

Ordering

Information

_

....

, . . . . . .

6-1

VII

MANUAL CHANGES

AND

OPTIONS

. . .

..

.

..

7-1

7-l.

Options

. . .

..

. .

......

_

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

7-1

7-3.

Special

Instruments

. . .

..

. . . . .

..

. .

7-1

7-5.

Manual

Changes

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

, .

7-1

7-7.

Later

Instruments

. . . .

..

. . .

7-1

7-8.

Earlier

Instruments

. , . . . . .

..

7-1

VIIl

TROUBLESHOOTING

AND

CffiCUlT

DIAGRAMS ,

.....

, . . . . . . . . . .

..

8-1

8

-1.

Introduction

. . . . . . . .

..

. . . .

..

8-1

8

-5..

Troubleshooting

8-1

8-8.

Schematics

. . . . . . . .

..

. . . .

..

.

..

. . . .

8-1

'

-----

HP 4328A Manuale di servizio

Manuali Strumento di misura popolari di altre marche