Tektronix 2440 Product information sheet

2440 USER REFERENCE

TEK w,,x

070-6600-00

Product Group 37

2440

DIGITAL OSCILLOSCOPE

USER REFERENCE GUIDE

First Printing SEP 1987

Revised OCT 1989

. . .--..e -m.-.. .

TEK .INTER-OFFICE COMlvllJNlCATlON

Sohn Martin

94-540

TO 3:. ’t Juno 25, 1991

FWW

Frank Gray, SO-PAT

M3KC.T

GIDEP permit request

In response to

the request

to grant permission to

the

Government

Industry

Exchange

Pro

ram (GPDEP) to reproduce

Tektronix operator,

service and

nstruction manuals,

Tektronix, Inc. hereby grant6 such permission for distribution

such documents to any

GTDEP

user that is a full participant

in the Metrology Data Interchange Data Base

GIDEP provided

that

all copies

of the original work include the entire

in the original, together with the Legend "Reproduded with

pemieeion,a

This permission has been approved by the Intellectual

aeon% 1[

Committee of Tektronix

ded

and

copy of this memo may

to GIDEP to grovide’the requested permission.

geG&dy

Group Pat&t CounselGroup Patent C&nsal v

Contents of this publication may not be reproduced in any

form without the written permission of Tektronix, Inc.

Products of Tektronix, Inc. and its subsidiaries are covered

by U.S. and foreign patents and/or pending patents.

TEKTRONIX, TEK, S.COPE-MOBILE, and

registered trademarks of Tektronix, Inc. are

Printed in U.S.A. Specification and price change privileges

are reserved.

INSTRUMENT SERIAL NUMBERS

Each instrument has a serial number on a panel insert, tag,

or stamped on the chassis, The first number or letter

designates the country of manufacture. The last five digits

of the serial number are assigned sequentially and are

unique to each instrument. Those manufactured in the

United States have six unique digits. The country of

manufacture is identified as follows:

BOO0000 Tektronix, Inc., Beaverton, Oregon, USA

100000 Tektronix Guernsey, Ltd., Channel Islands

200000 Tektronix United Kingdom, Ltd., London

300000 Sony/Tektronix, Japan

700000 Tektronix Holland, NV, Heerenveen,

The Netherlands

Contents

Getting Started/Fran t Panel ................................................ 1

CRT Readout Display.. ....................................................... 4

Status/Help Menu ............................................................... 5

Powering Up ....................................................................... 7

CRT Display Menus ............................................................ 9

Auto Setup.. ........................................................................ 11

PRGM AutoStep ................................................................. 13

Measure .............................................................................. 16

output.. ............................................................................... 20

Page

Illustrations iii

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

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

Vertical. ...............,,.............................................................. 22

Horizontal ............................................................................ 25

Cursors ............................................................................... 26

Delay Functions .................................................................. 29

Triggering ............................................................................ 31

A Triggering ........................................................................ 35

6 Triggering ........................................................................ 37

Acquisition ........................................................................... 40

Save and Display Reference .............................................. 42

GPIS Status.. ...................................................................... 44

“...-.

-_ ._.__....-. -..- -__I-

Illustrations

Figure Page

10a

lob

Front Panel Buttons and Controls.. ............................................................... 3

CRT Readout Display .................................................................................... 4

Status Menu Display.. .................................................................................... 5

POWER and MENU OFF Button.. ................................................................. 7

INTENSITY Control, SELECT and STATUS/HELP Buttons.. ...................... 9

AUTO SETUP Button .................................................................................... 11

PRGM Button.. ............................................................................................... 13

MEASURE Button.. ........................................................................................ 16

OUTPUT Button.. ........................................................................................... 20

Vertical Buttons and Controls ....................................................................... 22

Vertical Buttons and Controls ....................................................................... 23

Horizontal Buttons and Controls.. ................................................................. 25

Cursor Buttons and Controls ........................................................................ 26

Delay Buttons and Controls .......................................................................... 29

Trigger CPLG, SET VIDEO, and SET WORD Buttons ................................ 31

Trigger SOURCE, INIT @50%, and TRIG STATUS Buttons.. .................... 33

A Trigger MODE, TRIG POSITION, A/B TRIG Buttons.. ............................. 35

B Trigger A/B TRIG, CPLG, INIT @50%, MODE, TRIG POSITION

SOURCE Buttons .......................................................................................... 37

Storage ACQUIRE Button.. ........................................................................... 41

Storage SAVE and DISPLAY REF Button.. .................................................. 42

III

SAFETY NOTE

This manual is a quick reference guide to the 2440 features. It does not rep/ace the

2440 Operators manual. The 2440 Operators manual (070-6695-00) contains

information related to safe use of this instrument as well as information necessary to

prevent damage to the instrument or to other property. Users should refer to the 2440

Operators manual before operating this instrument. In particular, read the “Operators

Safety Summary” at the beginning of the Operators manual, and “Preparation for Use”

in Section 1.

GETTING STARTED

See Front Panel (Figure 1) for locating the controls on the 2440.

Power On

Press the POWER switch, located on the front panel below the CRT

The 2440 performs a power-on test each time it is turned on. When the test

progresses to the point of being able to display, the message “RUNNING SELF

TEST” is shown on the CRT. At the end of the self test, the message is removed.

If the 2440 fails the self test, it will enter the extended diagnostics (see ‘MENU

OFF/EXTENDED FUNCTIONS” below for explanation). The 2440 may still be

usable if the failed area does not affect the measurements to be made. Press

MENU OFF to exit extended diagnostic and enter Scope mode.

The CAL/DIAG menu displays the message “NOT WARMED UP” for ten

minutes after each power-on.

Menu Off/Extended Functions

In the CAUDIAG menu, PASS or FAIL indicates the results of the last

calibration or self diagnostic run. No label will appear if calibration has not been run

since the last cold starta. If an “UNCALD” message appears in the extended

diagnostics menu, it may indicate that the last attempt of extended calibration

failed. In this case, allow the 2440 to warm up and do a SELF CAL. If the

UNCALD message persists after a SELF CAL or some other area has failed, the

previous calibration constants will not be overwritten, and the scope may be used.

However, calibration should be checked by referring the instrument to a qualified

service person. Press MENU OFF to exit extended diagnostics and enter Scope

mode. More information on the self test and diagnostics is found in Appendix A of

the Operators Manual.

@Cold Start

is a complete

initialization of the system, done only at the factory.

2440 Users Reference Guide 1

lnitializa tion

Connect a standard accessory probe to the CH 1 input BNC.

Connect the probe tip to the CALIBRATOR loop; connect the probe ground

lead to scope ground.

Press the PRGM SETUP button, located below the A AND B SEC/DlV knob.

Select INIT PANEL menu choice by pressing the bezel button directly below the

INIT PANEL menu label.

The initial settings for major front-panel controls are as follows:

VERTICAL MODE

CH 1 and CH 2 VOLTSiDlV

A AND B SECiDlV

TRIGGER MODE

TRIGGER SOURCE

Input Coupling

STORAGE MODE

ACQUIRE MODE

CH 1

1V (With 1 OX probe)

1 ms

AUTO LEVEL

VERT (CH 1)

1 MR DC

ACQUIRE

NORM

Verify that CH 1 Vertical Mode is selected (CHl VOLT/DIV readout is in upper

left corner of CRT). If CH 1 Vertical Mode is not selected, press Vertical MODE

button and select CH 1 (See Section 10, Vertical Mode, of this guide.)

Press ACQUIRE button on front panel

NOTE

Connecting a probe to the signal source and pressing the Auto Setup front-

panel button will provide a scaled and triggered display. If no vertical

channel is selected AUTO Setup will default to Channel 1. Auto Setup will

not change the channel selected if either or both of the two channels are on.

If the display intensity is set too low and the scaled display is not easy to

see, Auto Setup boosts intensity so the display can be seen. Auto Setup

does not affect readout or graticule intensity.

2 2440 Users Reference Guide

FRONT PANEL

Section 12 Section 13 Section 16

Section 7 I Section 9, 19

Section 3 Section 10 Section 6 Section 6 Section

Figure 1. Front Panel buttons and Controls.

2440 Users Reference Guide 3

_. -_.... “-...._

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