Tektronix 2337 Manual de usuario

Tfektronix

COMMITTED TO EXCELLENCE

Tektronix, Inc.

P.O. Box 500

Beaverton, Ore on 97077

070-4119-00

Product Group 40

PLEASE CHECK FOR CHANGE INFORMATION

AT THE REAR OF THIS MANUAL.

2337

OSCILLOSCOPE

OPERATORS

INSTRUCTION

Serial Num er

________________

MANUAL

First Printing SEP 1981

Revised MAY 1983

TABLE OF CONTENTS

Page

LIST OF ILLUSTRATIONS.................................................iii

LIST OF TABLES....................................................................v

OPERATORS SAFETY SUMMARY

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

INTRODUCTION....................................................................1

PREPARATION FOR USE

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

LINE VOLTAGE SELECTION

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

LINE FUSE

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

POWER CORD....................................................................5

CONTROLS, CONNECTORS, AND INDICATORS

..........

POWER AND DISPLAY....................................................6

VERTICAL.........................................................................7

HORIZONTAL..................................................................10

A TR IG G E R .................................................................... 12

BTRIGGER

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

REAR PANEL..................................................................18

Page

OPERATING CONSIDERATIONS

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

GRATICULE................................. 20

GROUNDING.................................................................20

SIGNAL CONNECTIONS...............................................21

INPUT COUPLING CAPACITOR

PRECHARGING..............................................................21

INSTRUMENT COOLING

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

INSTRUMENT FAMILIARIZATION

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

INTRODUCTION

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

EQUIPMENT REQUIRED

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

NORMAL SWEEP DISPLAY..........................................24

DISPLAYING A SIGNAL...............................................26

OPERATOR'S CHECKS AND ADJUSTMENTS

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

INTRODUCTION

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

TRACE ROTATION

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

PROBE COMPENSATION

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

ASTIGMATISM..............................................................38

VERTICAL GAIN CHECK

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

@2337 Operators l

TABLE OF CONTENTS (cont)

Page

BASIC APPLICATIONS.......................................................40

NONDELAYED MEASUREMENTS

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

AC Peak-to-Peak Voltage

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

Instantaneous DC Voltage..........................................42

Alge raic A ddition

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

Common-Mode Rejection..........................................45

Time Duration............................................................46

Frequency

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

Rise Tim e

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

Time Difference Between Two

Time-Related Pulses

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

Phase Difference

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

Amplitude Comparison

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

Time Comparison.......................................................55

DELAYED-SWEEP MAGNIFICATION

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

Magnified Sweep Runs After Delay

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

Pulse Jitter Time Measurement

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

Triggered Magnified Sweep

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

DELAYED-SWEEP TIME MEASUREMENTS

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

Time Duration............................................................61

Page

Rise T im e....................................................................61

Time Difference Between Repetitive Pulses

..........

Time Difference Between Two

Time-Related Pulses

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

DMM DISPLAYS AND MEASUREMENTS

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

Resistance....................................................................67

RMS A C ......................................................................67

DC Volts......................................................................68

OPTIONS..............................................................................69

OPTION 0 3 ......................................................................69

SPECIFICATION

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

ACCESSORIES......................................................................99

STANDARD ACCESSORIES INCLUDED

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

OPTIONAL POWER CORDS

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

APPENDIX A .......................................................................100

CHANGE INFORMATION

ii 2337 Operators @

LIST OF ILLUSTRATIONS

Figure Page

The 2337 Oscilloscope...........................................................................................................................viii

1 LINE VOLTAGE SELECTOR switch, line fuse, and power co rd

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

2 Optional power cords.................................................................................................................................5

3 Power and display controls and indicators.............................................................................................7

4 Vertical controls, connectors, and indicators and cali rator output....................................................8

5 Horizontal controls and indicator..........................................................................................................10

6 A TRIGGER controls, connector, and indicator.................................................................................13

7 DMM and B TRIGGER controls, connectors, and LCD readout........................................................16

8 Rear-panel connectors............................................................................................................................19

9 Graticule measurement markings..........................................................................................................20

10 Initial setup for instrument familiarization procedure.........................................................................27

11 Pro e compensation.................................................................................................................................. 38

12 Vertical display accuracy.......................................................................................................................39

13 Peak-to-peak waveform voltage.............................................................................................................41

14 Instantaneous voltage measurement.....................................................................................................43

15 Alge raic addition...............................................................................< .................................................45

16 Common-mode rejection.........................................................................................................................46

17 Time duration...........................................................................................................................................47

@ 2337 Operators ■**

Fig

LIST OF ILLUSTRATIONS (cont)

Page

Rise time...................................................................................................................................................49

Time difference etween two time-related pulses................................................................................51

Phase difference...................................................................................................................................... 53

High-resolution phase difference.............................................................................................................53

Delayed-sweep magnification..................................................................................................................58

Pulse jitte r................................................................................................................................................ 59

Time duration using delayed sweep....................................................................................................... 62

Rise time, differential time method....................................................................................................... 63

Time difference etween repetitive pulses...........................................................................................64

Time difference etween two time-related pulses

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

2337 Operators

LIST OF TABLES

Ta le Page

1 Line Voltage and Fuse Selection..............................................................................................................4

2 Option 03 Line Voltage and Fuse Selection..........................................................................................4

3 DMM Autoranging................................................................................................................................... 17

4 Equipment Required for Instrument Familiarization Procedure........................................................24

5 Electrical Characteristics.........................................................................................................................72

6 Environmental Characteristics...............................................................................................................95

7 Physical Characteristics........................................................................................................................... 97

8 Option Electrical Characteristics............................................................................................................98

@2337 Operators v

OPERATORS SAFETY SUMMARY

The general safety information in this part of the summary is for both operating and servicing personnel. Specific warnings

and cautions will be found throughout the manual where they apply and do not appear in this summary.

Terms in This Manual

CAUTION statements identify conditions or practices

that could result in damage to the equipment or other

property.

WARNING statements identify conditions or practices

that could result in personal injury or loss of life.

Terms as Marked on Equipment

CAUTION indicates a personal injury hazard not

immediately accessi le as one reads the markings, or a

hazard to property, including the equipment itself.

DANGER indicates a personal injury hazard immedi

ately accessi le as one reads the marking.

Symbols in This Manual

A This sym ol indicates where applica le

cautionary or other information is to e

found. For maximum input voltage see

Ta le 5.

Symbols as Marked on Equipment

DANGER — High voltage.

Protective ground (earth) terminal.

ATTENTION — Refer to manual.

VI 2337 Operators @

Power Source

This product is intended to operate from a power

source that does not apply more than 250 volts rms

etween the supply conductors or etween either supply

conductor and ground. A protective ground connection

y way of the grounding conductor in the power cord is

essential for safe operation.

Groundin the Product

This product is grounded through the grounding con

ductor of the power cord. To avoid electrical shock, plug

the power cord into a properly wired recepta le efore

connecting to the product input or output terminals. A

protective ground connection y way of the grounding

conductor in the power cord is essential for safe operation.

Dan er Arisin From Loss of Ground

Upon loss of the protective-ground connection, all

accessi le conductive parts (including kno s and controls

that may appear to e insulating) can render an electric

shock.

Use the Proper Power Cord

Use only the power cord and connector specified for

your product.

Use only a power cord that is in good condition.

For detailed information on power cords and con

nectors see Figure 2.

Use the Proper Fuse

To avoid fire hazard, use only a fuse of the correct type,

voltage rating and current rating as specified in the parts

list for your product.

Do Not Operate in Explosive Atmospheres

To avoid explosion, do not operate this product in

an explosive atmosphere unless it has een specifically

certified for such operation.

Do Not Remove Covers or Panels

To avoid personal injury, do not remove the product

covers or panels. Do not operate the product without the

covers and panels properly installed.

@2337 Operators Vll

INTRODUCTION

The TEKTRONIX 2337 Oscilloscope is a rugged, light

weight, dual-channel, 100-MHz instrument with a general-

purpose digital multimeter (DMM). It also features a

compact crt that provides sharply defined traces. The

vertical system supplies cali rated deflection factors from

5 mV per division to 5 V per division. Sensitivity can e

increased to at least 2 mV per division y the varia le

VOLTS/DIV VAR control. Trigger circuits ena le sta le

triggering over the full andwidth of the vertical system.

The horizontal system provides cali rated sweep speeds

from 0.5 s per division to 50 ns per division, along with

delayed-sweep features, thus accommodating accurate

relative-time measurements. A X10 magnifier circuit

extends the maximum sweep speed to 5 ns per division

when the SEC/DIV switch is set to 0.05 ps.

A 3 1/2-digit LCD (liquid crystal display) readout

ena les rapid measurement of time difference etween any

two points on the oscilloscope display.

The DMM portion measures dc voltage, resistance, and

true rms ac voltage. Measurement values are displayed on

the LCD readout, together with polarity, overrange, and

function indicators.

The instrument is shipped with the following standard

accessories:

2 Pro e packages

1 Accessory pouch

1 Operators manual

1 Service manual

1 Accessory pouch, zip lock

1 Crt filter, clear plastic

2 1,0-A AGC fast- low fuses

1 0.5-A AGC fast- low fuse

1 Pair test leads

For part num ers and further information a out oth

standard and optional accessories, refer to the "Acces

sories" page at the ack of this manual. Your Tektronix

representative or local Tektronix Field Office can also

provide accessories information.

@2337 Operators 1

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