Tektronix 465B Manuale utente

Tektronix

, Inc.

P.O. Box 500

Beaverton, Oregon 97077

070-2756-00

COMMITTED

EXCELLENCE

PLEASE CHECK FOR CHANGE

INFORMATION

THE REAR

OF THIS MANUAL.

4658

•

OSCILLOSCOPE

AND

DM44

DIGITAL MULTIMETER

OPERATORS

INSTRUCTION

MANUAL

Serial

Number

___

_ First Printing MAR 1979

Revised SEP

1981

Tektronix,

Inc

. All

rights

reserved. Contents of

this

publication

may

not

reproduced

in any

form

without

the

written

permission

Tektronix

Inc

Products of

Tektronix

Inc

. and its subsidiaries

are covered by U.S. and

foreign

patents and/or

pending patents.

TEKTRONIX, TEK,

SCOPE-MOBILE

, and 8

are registered trademarks of

Tektronix

Inc

TELEQUIPMENT is a registered

trademark

Tektronix

Limited.

Printed in U.S.A.

Specification

and price change

privileges are reserved.

TABLE OF CONTENTS

Page

LIST OF

ILLUSTRATIONS

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

SAFETY

SUMMARY

. . . . . . . . . . . . . . . . . . . . . . . v

BEFORE OPERATING

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

INTRODUCTION

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

OPERATING

SAFETY

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

LINE

VOLTAGE

SELECTION

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

REGULATING RANGE SELECTION

........

INSTRUMENT COOLING

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

CONTROLS, CONNECTORS,

AND

INDICATORS

...

VERTICAL

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

DISPLAY

AND

CALIBRATOR

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

DM44 OPTION . . . . . . . . . . . . . . . . . . . . . . . 8

TRIGGER

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

HORIZONTAL

AND

POWER

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

REAR PANEL

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

LEFT

SIDE PANEL

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

RIGHT SIDE PANEL

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

Page

BASIC OSCILLOSCOPE DISPLAYS

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

PRELIMINARY

. . . . . . . . . . . . . . . . . . . . . . . . 19

PRESET INSTRUMENT CONTROLS

.........

NORMAL

SWEEP

DISPLAY

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

MAGNIFIED

SWEEP

DISPLAY

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

DELAYED

SWEEP

DISPLAY

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

ALTERNATE

SWEEP

DISPLAY

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

X·Y

DISPLAY

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

SINGLE

SWEEP

DISPLAY

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

DM44 DISPLAYS

AND

MEASUREMENTS . . . . . . . 26

RESISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . 26

VOLTS

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

TEMPERATURE

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

TEMPERATURE ACCURACY CHECKS

.......

ADJUSTMENTS

AND

MEASUREMENTS . . . . . . . . 34

OPERATING CONSIDERATIONS

...........

GRATICULE

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

GROUNDING

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

SIGNAL

CONNECTIONS . . . . . . . . . . . . . . . 35

PROBE COMPENSATION

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

REV B MAR

1981

465B/DM44

Operators

TABLE OF

CONTENTS

(cont)

Page Page

ADJUSTMENTS

AND

MEASUREMENTS (cont) ADJUSTMENTS

AND

MEASUREMENTS (cont)

INPUT COUPLING CAPACITOR

PRECHARGING

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

OPERATOR'S CHECKS

AND

ADJUSTMENTS

...

TRACE ROTATION ADJUSTMENT

........

BASIC 465B

TIMING

CHECK

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

DM44

TIMING

CHECK

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

A TRIGGER INPUT COUPLING CHECK

.....

EXTERNAL

HORIZONTAL

GAIN

CHECK

...

MAKING

PRECISION MEASUREMENTS

......

AC PEAK-TO-PEAK

VOLTAGE

...........

INSTANTANEOUS DC VOLTAGE

.........

ALGEBRAIC

ADDITION

. . . . . . . . . . . . . . . 43

COMMON-MODE REJECTION . . . . . . . . . . . . 45

AMPLITUDE COMPARISON

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

TIME DURATION

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

FREQUENCY

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

RISE

TIME

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

TIME

DIFFERENCE BETWEEN

TWO

TIME-

RELATED PULSES

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

TIME COMPARISON

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

PHASE DIFFERENCE

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

HIGH RESOLUTION PHASE DIFFERENCE 54

PULSE JITTER . . . . . . . . . . . . . . . . . . . . . . 55

DELAYED

SWEEP

MAGNIFICATION

......

Magnified

Sweep

Starts

After

Delay . . . . . . . 56

Triggered Delay

Sweep

Magnification . . . . . . 57

BASIC 465B

DELAYED

SWEEP

TIME

MEASUREMENTS . . . . . . . . . . . . . . . . . . 58

Time Duration (Basic 465B) . . . . . . . . . . . . 58

Frequency (Basic 465B) . . . . . . . . . . . . . . . 60

Rise

Time

(Basic

465B) . . . . . . . . . . . . . . . 60

Time Difference Between Repetitive

Pulses

(Basic 465B) . . . . . . . . . . . . . . . . . . . .

Time Difference Between Two Time-Related

Pulses

(Basic 465B) . . . . . . . . . . . . . . . . 63

DM44

DELAYED

SWEEP

TIME

MEASUREMENTS . . . . . . . . . . . . . . . . . . 64

Time Duration Using DM44 . . . . . . . . . . . .

Frequency Using DM44 . . . . . . . . . . . . . . . 69

Rise

Time Using DM44 . . . . . . . . . . . . . . . 69

Time Difference Between Repetitive

Pulses

Using DM44 . . . . . . . . . . . . . . . . . . . . . 70

Time Difference Between Two Time-Related

Pulses

Using DM44 . . . . . . . . . . . . . . . . 72

465B/DM44

Operators @

TABLE OF CONTENTS (cont)

Page

SPECIFICATION

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

VERTICAL

SYSTEM . . . . . . . . . . . . . . . . . . . .

TRIGGER SYSTEM

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

HORIZONTAL

DEFLECTION SYSTEM

.......

CALIBRATOR

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

Z·AXIS

INPUT . . . . . . . . . . . . . . . . . . . . . . . . 86

SIGNAL

OUTPUTS . . . . . . . . . . . . . . . . . . . . . 86

POWER

SOURCE . . . . . . . . . . . . . . . . . . . . . . . 87

CATHODE-RAY TUBE

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

DM44

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

ACCESSORIES

.........•..........•.....

STANDARD ACCESSORIES INCLUDED

......

OPTIONAL ACCESSORIES

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

OPTIONS

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

GENERAL DESCRIPTION

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

OPTION

. . . . . . . . . . . . . . . . . . . . . . . . . 96

OPTION 04 . . . . . . . . . . . . . . . . . . . . . . . . . 96

OPTION 05 . . . . . . . . . . . . . . . . . . . . . . . . . 96

OPTION 07 . . . . . . . . . . . . . . . . . . . . . . . . . 97

Page

OPTIONS (cont)

OPTION 05

SYNC SEPARATOR

..........

GENERAL

INFORMATION

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

SPECIFICATION

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

OPTION 05 ACCESSORIES

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

100

OPERATING INFORMATION

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

100

Installation

Video Graticule

..........

100

Operation

the Sync Separator

.........

Triggering the

Sweep

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

102

Vertical Operating

Modes-

Special Considerations

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

102

Typical Operation

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

103

Selecting

Individual Line

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

104

Special Measurements

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

105

IDENTIFYING

FIELDS, FRAMES

AND

LINES

IN 525/60

AND

625/50

SYSTEMS

.....

105

NTSC (CCIR System

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

105

CCI

R System B

and

Similar 625/50

Systems

(including PAL)

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

106

OPTION 07

EXTERNAL

DC OPERATION

......

107

SPECIFICATION

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

107

CONTROLS

AND

CONNECTORS

.........

107

OPTIONAL ACCESSORY

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

108

OPERATING INFORMATION

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

108

465B/DM44

Operators

iii

LIST OF ILLUSTRATIONS

Figure

Page

Figure

Page

1 Regulating

range

selection

and

line fuse. 2

2 Vertical controls, connectors,

and

indicators. . . 5

3 Display, calibrator,

and

DM44 controls,

connectors, and indicators. . . . . . . . . . . . . 7

4 Trigger controls, connectors, and indicators. 10

5 Horizontal controls and indicators. . . . . . . . 13

6 Horizontal

and

power controls

and

indicators

Rear

panel and

left

side

panel controls,

connectors,

and

indicators. . . . . . . . . . . .

Resistance

measurement. . . . . . . . . . . . . . . 27

9 Volts measurement. . . . . . . . . . . . . . . . . . 29

10 Temperature measurement. . . . . . . . . . . . .

Probe compensation. . . . . . . . . . . . . . . . . . 36

Basic

4658 timing check. . . . . . . . . . . . . . . 38

13 DM44 timing check. . . . . . . . . . . . . . . . . . 39

14 Peak-to-peak waveform voltage. . . . . . . . . . .

15 Instantaneous voltage measurement. . . . . . . . 43

16 Algebraic addition. . . . . . . . . . . . . . . . . . . 44

17 Common-mode rejection. . . . . . . . . . . . . . .

Time duration

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

Rise

time

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

20 Time difference between

two

time-related

pulses.

. . . . . . . . . . . . . . . . . . . . . . . . . 50

Phase

difference. . . . . . . . . . . . . . . . . . . . 53

22 High resolution

phase

difference. . . . . . . . . . 54

Pulse

jitter.

. . . . . . . . . . . . . . . . . . . . . . . 55

24 Delayed

sweep

magnification. . . . . . . . . . . .

25 Time duration. . . . . . . . . . . . . . . . . . . . . . 59

Rise

time. . . . . . . . . . . . . . . . . . . . . . . . . 60

27 Time difference between repetitive

pulses.

. . . 62

28 Time difference between

two

time-related

pulses.. . . . . . . . . . . . . . . . . . . . . . . . . 63

29 Time differerence between

two

time-related

pulses, delayed

sweep

display. . . . . . . . . . 64

30 Time duration and frequency. . . . . . . . . . . . 68

Rise

time. . . . . . . . . . . . . . . . . . . . . . . . . 70

32 Time difference between repetitive pulses. . . .

33 Time difference between

two

time-related

pulses.. . . . . . . . . . . . . . . . . . . . . . . . . 72

465B/DM44 Operators @

I @

SAFETY SUMMARY

The general safety

information

in this summary

for

operating personnel. Specific warnings and

cautions

will

found throughout the manual where they apply and

not

appear in this summary.

TERMS

This

Manual

CAUTION

statements

identify

conditions

practices

that

could result in

damage

either the

instrument

other property.

WARNING

statements

identify

conditions

practices

that

could result in either personal

injury

loss

life.

Marked

Equipment

CAUTION

indicates either a personal

injury

hazard

not

immediately accessible

you

read

the marking

a hazard

property, including the instrument itself.

DANGER

indicates a personal

injury

hazard immediately accessible

you

read

the marking.

465B/DM44

Operators v

SYMBOLS

Marked

Equipment

DANGER

-High voltage.

@ Protective ground (earth) terminal.

Power

Source

This

product

intended

operate

from

a power source

that

will

not

apply more than 250 volts rms

between the supply conductors

between either supply conductor and ground. A protective ground

connection

way

the grounding conductor in the power cord

essential

for

safe

operation.

Grounding

the

Product

This

product

grounded through the grounding conductor

the power cord.

avoid electrical

shock, plug the power cord

into

a properly wired receptacle before connecting

the

product

input

output

terminals. A protective ground connection

way

the grounding conductor in the power cord

essential

for

safe

operation.

465B/DM44 Operators

@ I

Use

the Proper Power Cord

Use

only

the

power

cord

and

connector

specified

for

your

product

Use

only

power

cord

that

in good

condition

Refer cord and

connector

changes

qualified

service personnel.

Use

the Proper

Fuse

avoid

fire

hazard,

use

only

the fuse specified

for

your

product.

Replacement fuses should

identical

type,

voltage rating, and

current

rating.

Not

Operate

Explosive Atmospheres

avoid explosion,

not

operate this

product

atmosphere

explosive

gases

unless

has

been

specifically

certified

for

such operation.

Not

Remove Covers or

Panels

avoid personal

injury,

not

remove covers

panels

from

this

product.

not

operate the

product

without

properly

installed covers and panels.

4658/DM44

Operators vii

2756

4658

Oscilloscope with DM44 Digital Multi

meter.

viii

465B/DM44

Operators

REV A AUG 1979

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