Tektronix THM550 User manual

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2

Table of contents

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+a

B=3

Instructions

Tektronix

THM

550,

THM

560

&

THM

565

TekMeter™

070-8840-01

This

document

applies

to

firmware

version

2.00

and

above.

Please

check

for

change

information

at

the

rear

of

this

manual.

Second

Edition:

September

1994

Copyright

©

Tektronix,

Inc.

1993,

1994.

All

rights

reserved.

Licensed

software

products

are

owned

by

Tektronix

or

its

suppliers

and

are

protected

by

United

States

copyright

laws

and

international

treaty

provisions.

Use,

duplication,

or

disclosure

by

the

Government

is

subject

to

restrictions

as

set

forth

in

subparagraph

(c)(1)(ii)

of

the

Rights

in

Technical

Data

and

Computer

Software

clause

at

DFARS

252.227-7013,

or

subparagraphs

(c)(1)

and

(2)

of

the

Commercial

Computer

Software

—

Restricted

Rights

clause

at

FAR

52.227-19,

as

applicable.

Tektronix

products

are

covered

by

U.S.

and

foreign

patents,

issued

and

pending.

Information

in

this

publication

supercedes

that

in

all

previously

published

material.

Specifications

and

price

change

privileges

reserved.

Printed

in

the

U.S.A.

Tektronix,

Inc.,

P.O.

Box

1000,

Wilsonville,

OR

97070-1000

TEKTRONIX

and

TEK

are

registered

trademarks

of

Tektronix,

Inc.

TekMeter

is

a

registered

trademark

of

Tektronix,

Inc.

Seetaeel

|

—

ce

nn

A

p)

Mo

'

j

ui!

i!

{

yi

Li!

}

i

et

Ui

rf

:

|

ELAAnnAn

TA

A

uli

a

WARRANTY

Tektronix

warrants

that

this

product

will

be

free

from

defects

in

materials

and

workmanship

for

a

period

of

one

(1)

year

from

the

date

of

shipment.

If

any

such

product

proves

defective

during

this

warranty

period,

Tektronix,

at

its

option,

either

will

repair

the

defective

product

without

charge

for

parts

and

labor,

or

will

provide

a

replacement

in

exchange

for the

defective

product.

In

order

to

obtain

service

under

this

warranty,

Customer

must

notify

Tektronix

of

the

defect

before

the

expiration

of

the

warranty

period

and

make

suitable

arrangements

for

the

performance

of

service.

Customer

shall

be

responsible

for

packaging

and

shipping

the

defective

product

to

the

service

center

designated

by

Tektronix,

with

shipping

charges

prepaid.

Tektronix

shall

pay

for

the

return

of

the

product

to

Customer

if

the

shipment

is

to

a

location

within

the

country

in

which

the

Tektronix

service

center

is

located.

Customer

shall

be

responsible

for

paying

all

shipping

charges,

duties,

taxes,

and

any

other

charges

for

products

returned

to

any

other

locations.

This

warranty

shall

not

apply

to

any

defect,

failure

or

damage

caused

by

improper

use

or

improper

or

inadequate

maintenance

and

care.

Tektronix

shall

not

be

obligated

to

furnish

service

under

this

warranty

a)

to

repair

damage

resulting

from

attempts

by

personnel

other

than

Tektronix

representatives

to

install,

repair

or

service

the

product;

b)

to

repair

damage

resulting

from

improper

use

or

connection

to

incompatible

equipment;

or

c)

to

service

a

product

that

has

been

modified

or

integrated

with

other

products

when

the

effect

of

such

modification

or

integration

increases

the

time

or

difficulty

of

servicing

the

product.

THIS

WARRANTY

IS

GIVEN

BY

TEKTRONIX

WITH

RESPECT

TO

THIS

PRODUCT

IN

LIEU

OF

ANY

OTHER

WARRANTIES,

EXPRESSED

OR

IMPLIED.

TEKTRONIX

AND

ITS

VENDORS

DISCLAIM

ANY

IMPLIED

WARRANTIES

OF

MERCHANTABILITY

OR

FITNESS

FOR

A

PARTICULAR

PURPOSE.

TEKTRONIX’

RESPONSIBILITY

TO

REPAIR

OR

REPLACE

DEFECTIVE

PRODUCTS

IS

THE

SOLE

AND

EXCLUSIVE

REMEDY

PROVIDED

TO

THE

CUSTOMER

FOR

BREACH

OF

THIS

WARRANTY.

TEKTRONIX

AND

ITS

VENDORS

WILL

NOT

BE

LIABLE

FOR

ANY

INDIRECT,

SPECIAL,

INCIDENTAL,

OR

CONSEQUENTIAL

DAMAGES

IRRESPECTIVE

OF

WHETHER

TEKTRONIX

OR

THE

VENDOR

HAS

ADVANCE

NOTICE

OF

THE

POSSIBILITY

OF

SUCH

DAMAGES.

Service

Assurance

If

you

have

not

already

purchased

Service

Assurance

for

your

TekMeter,

this

valuable

opportunity

is

still

available.

Advantages

@

Conveniently

arrange

lifetime

repair

and

calibration

support.

©

Priced

well

below

the

cost

of

a

single

repair

or

calibration.

@

Tektronix

metrology

expertise

worldwide

will

expand

your

internal

resources.

Repair

Protection

provides

post-warranty

repair

support

whenever

needed.

You

may

purchase

up

to

three

years

of

Repair

Protection.

Calibration

Services

provide

annual

calibration

of

your

TekMeter,

standards

compliance

and

required

audit

documentation,

recall

assurance,

and

reminder

notification

of

scheduled

calibration.

Calibration

Services

begin

at

the

end

of

your

first

year

of

ownership,

and

you

may

purchase

up

to

five

years

of

support.

Purchase

Repair

Protection

or

Calibration

Services,

or

both,

to

meet

your

needs.

You

can

have

confidence

that

your

TekMeter

investment

is

protected.

To

order

Service

Assurance,

please

contact

your

Tektronix

representative

with

the

information

below.

Service

Assurance

may

not

be

available

in

some

locations

outside

the

United

States

of

America.

@

Name

®

Repair

Protection

(1,

2,

or

3

years)

@

Company

®

Calibration

Service

(1,

2, 3,

4,

or

5

years)

®

Address

®

Date

of

Purchase

@

City,

State,

Postal

Code

©

Instrument

Serial

Number

®

Country

@

TekMeter

Model—THM

550,

THM

560

or

®

Phone

THM

565

@

VISA/MC

and

expiration

date,

or

purchase

order

number

e-

3

Bg

Table

of

Contents

General

Safety

Summary

.............c.eccccececec.

QUORWIEW.

8

caikaia

sini

sie

bP

yee

ea

Gee

eas

ba

eens

awe

eceuel

Getting

Started

00...

0...

ccccccsscscccccececuceccces

Installing

Batteries

#3

..sch.06

cbcetne

beeen

enon

ds

cesta,

PAUSE

OSE

sa

octeae

hazel

Ru

ae

keetdsiyyrs

8

dat

acess

tat

cos

tc

Current

Measurement

..............0.0.0.000--0......

Max/Min

Values...

20.00...

0c

cece

cece

cece.

HONG

Wales

so

esas

oa

heer

eycke

saat

nuded

45

eo

deacnce

Locwe@ee,

DMM

MONS

55.235

45-40

seer

a

Sco

wiitact

v-neck

das

thee

a

cues

PROVES

focactshapin

3259

cc

inurs

Suge

Doad

sqbecahuelstion

snd

dios

Scope

Operations

..........

0...

ccc

cececcececeusecccs

sii

Tiemann

eae

aceyeremoed

Tah

y

cep

Using

Channel

2

(THM

560

and

THM

DOS)!

odsdi

hs

G4

ga

edith

Positioning

Waveforms

.................0.0.0.000-....

AISI

CURSOS

iris

ig

natnaie

tts

iste

weitere

hacduion

pec

eye

TMG

BOMG

pei

eit

Auae

tu

wert

aria

uch

Waele

a4

ane

homed

RUIN

TOE

ea

als

acatese

aac

oss

ca

tee

tae

Pin

asa

into

THM

550,

THM

560.

and

THM

565

TekMotar

Incieatinne

Table

of

Contents

E-

=

|

Scope

Menu

Tree

General

Safety

Summary

Scope

Main

Menus

...........

00.00

cece

cece

eee

eee

28

::

Operation

Mode

..........

0...

ce

cece

eee

eee

29

&

a

Measure

Modes

..........

00.20.

cece

cee

eee

eee

30

E

'

Triptit.

MOdeS\

ei.

eee

ooo

ee

eles

gs

eS

Le Se

SIE

es

3]

~ai

Review

the

following

safety

precautions

to

avoid

injury

and

prevent

Acquire

Modes

........

0.00.

ec

eee

ece

eee

eeees

33

K

‘

a

damage

to

this

product

or

any

products

connected

to

it.

:

a.

TIERCE

ACINS

perenne

Seba

nator

abe

Only

qualified

personnel

should

perform

service

procedures.

Scope

Sto/Rec

Menu

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

cece

eee

eee

eee

aes

37

i

Utility

NEMS

sac

ciee

Soe

aceite

see

eeiee

sich

nate

33

mig

Scope

Applications

...........

ccc

ce

cree

ccc

ccceeceeres

40

A

Injury

Precautions

Detecting

Line

Disturbances

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

0.0000

eee

eee

40

)

a

jury

Displaying

PWM

Motor

Drive

Waveforms

(THM

565)

......

42

E

ade

; .

Three

Phase

Voltage

(THM

560

and

THM

565)

—¥

Avoid

Electric

Overload

Delta

(A)

Configuration

...........

0...

eee

eens

43

=

nis

wvGial

elbstnerelocoe

him

hasaaG@e

‘ae

;

ot

apply

a

voltage

to

a

hace

Phase:

Voltage

eA

so

end

THM

56>)

a

terminal

that

is

outside

the

range

specified

for

that

terminal.

Wye

(Y)

Configuration

.......

2.0...

cece

eee

eee

ees

45

a

Transformer

Harmonic

Derating

Factor

(THDF)

...........

47

all

Measuring

True

Power

(THM

560,

THM

565)

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

48

=:

Do

Not

Operate

Without

Covers

Appendix

A:

Specifications

.......+--.+ee0e

eee

eeeee

49

~

a

To

avoid

electric

shock

or

fire

hazard,

do

not

operate

this

product

Appendix

B:

Optional

Accessories

.........-+eeeeeeeee

F

57

By

with

covers

or

panels

removed.

Appendix

C:

Troubleshooting

.........-..eeseeeeeceees

59

oe

aac

Instrument

Problems

...........0000

0000

e

eee

e

eens

59

|

Do

Not

Float

Outside

Limits

Reducing

Noise

PAChUD.

gi

cndce

da

pupae

vie

swine

canes

”

a

Do

not

apply

a

potential

to

any

input,

including

the

common

input,

Appendix

D:

Replaceable

Parts

........escecceescscees

61

-

|

that

varies

from

ground

by

more

than

the

maximum

rating

for

the

a

product.

--

4

a

eT

Do

Not

Operate

in

Explosive

Atmosphere

a

To

avoid

injury

or

fire

hazard,

do

not

operate

this

product

in

an

~

aj

explosive

atmosphere.

Product

Damage

Precautions

a

|

Use

Proper

Power

Source

es

=

Do

not

operate

this

product

from

a

power

source

that

applies

more

a

than

the

voltage

specified.

ii

THM

550,

THM

560,

and

THM

565

TekMeter

Instructions

a

|

THM

550,

THM

560,

and

THM

565

TekMeter

Instructions

1

General

Safety

Summary

Do

Not

Operate

With

Suspected

Failures

If

you

suspect

there

is

damage

to

this

product,

have

it

inspected

by

qualified

service

personnel.

Do

Not

Leave

Exposed

to

Sunlight

Do

not

store

or

leave

this

product

where

the

LCD

display

will

be

exposed

to

direct

sunlight

for

long

periods

of

time.

Safety

Terms

and

Symbols

Terms

in

This

Manual

These

terms

may

appear

in

this

manual:

WARNING.

Warning

statements

identify

conditions

or

practices

that

could

result

in

injury

or

loss

of

life.

>

CAUTION.

Caution

statements

identify

conditions

or

practices

that

could

result

in

damage

to

this

product

or

other

property.

>

Terms

on

the

Product

These

terms

may

appear

on

the

product:

DANGER

indicates

an

injury

hazard

immediately

accessible

as

you

read

the

marking.

WARNING

indicates

an

injury

hazard

not

immediately

accessible

as

you

read

the

marking.

CAUTION

indicates

a

hazard

to

property

including

the

product.

2

THM

550,

THM

560,

and

THM

565

TekMeter

Instructions

E-3

|

|

E-3

E34

E-¥

B-a

|

er

pane

aa

ae

a

og

i

}

}

if

ae

i

/

t

vv

6s

General

Safety

Summary

Symbols

on

the

Product

The

following

symbols

may

appear

on

the

product:

4

©

AN

ia

DANGER

Protective

Ground

ATTENTION

Double

High

Voltage

(Earth)

Terminal

Refer

to

Insulated

Manual

Certifications

and

Compliances

Compliances

Consult

the

product

specifications

for

IEC

Installation

Category,

Pollution

Degree,

and

Safety

Class.

THM

550,

THM

560.

and

THM

565

TekMeter

Instructions

3

Overview

The

THM

550,

THM

560,

and

THM

565

TekMeters

provide

you

with

the

features

of

a

complete

digital

multimeter

(DMM),

and

in

addition,

give

you

the

power

of

a

scope,

all

in

a

small

portable

package

that

is

intuitive

and

simple

to

use.

The

DMM

provides

true

RMS

AC

and

DC

voltage

readouts,

resistance

readouts,

continuity

testing

with

an

audible

signal,

and

a

diode

test

mode.

AC

and

DC

current

can

be

measured

using

an

optional

current

probe.

Additional

DMM

functions

and

readouts

include

a

hold

feature

to

freeze

the

display,

min

and

max

readouts

to

show

how

a

signal

has

varied,

and

the

instantaneous

variation

from

the

last

held

value

(A

Hold).

The

oscilloscope

has

the

world’s

first

Autoranging

mode

that

automates

operation

completely,

so

that

it

always

displays

a

usable

signal

without

operator

intervention.

When

desired,

automatic

operation

can

be

overridden

by

using

any

control.

In

manual

mode,

the

oscilloscope

provides

general

oscilloscope

coupling,

triggering,

and

acquisition

modes.

Special

preconfigured

modes

instantly

set

up

the

oscilloscope

for

motor

testing,

transformer

THDF

measurements,

power

line

monitoring,

and

power

measurements.

Waveforms,

settings,

and

displays

can

be

saved

for

future

reference

and

use.

Test

setups

can

be

saved

to

automate

and

recall

test

procedures

in

the

field.

Waveforms

and

screens

can

be

saved

in

the

field

to

compare

them

with

field

samples,

and,

with

the

optional

Communications

Adapter,

transferred

to

a

PC

for

customer

reports

or

to

monitor

trends.

Whether

your

application

is

in

field

service

or

on

the

bench,

the

THM

500

series

instruments

are

light,

simple,

portable,

and

versatile

enough

to

meet

your

needs.

THM

550.

THM

560.

and

THM

565

TekMeter

Instructions

ARRAD

TT

THAR

he

a.

ee ae

a.

a.

a.

»

be

mh

+

A

a

ro

r-

t-

ae

ae

ee

a

tT

re

TT

Be

~

aoe!

i

-

i

Md

wy

Getting

Started

Installing

Batteries

The

low

battery

indicator

appears

in

l

the

upper

right

of

the

display

when

the

battery

voltage

gets

low.

With

alkaline

batteries,

you

have

about

a

half

hour

of

battery

life.

With

NiCd

batteries,

you

have

only

about

30

seconds

left.

(6)

size

AA

batteries.

Maximum

life

alkaline

or

long-life

NiCd

batteries

are

recommended.

THM

550,

THM

560,

and

THM

565

TekMeter

Instructions

5

Getting

Started

Adjust

Offset

Before

performing

any

measurements

using

the

Scope

mode,

adjust

the

offset

setting.

This

is

especially

important

if

the

THM

500

series

instruments

has

been

left

without

a

power

source

for

several

hours.

NOTE.

Pressing

the

ON/OFF

button

without

batteries installed

instantly

uncalibrates

the

offset

settings.

SELECT

oO

Z=z>r>

ama

Vv

OO

=x

VACWRP

OAM

PCr

SUOHAS

ADm>Sc

mMe2ono0

vvvvivvvyvyy

Display

Use

direction

buttons

to

point

to

the

channel

offset

selection.

Adjust

Select.

menu,

the

offset

for

each

channel.

The

offset

is

set

at

the

factory

at

room

temperature.

If

operating

the

THM

500

series

instruments

at

extreme

temperatures,

perform

the

offset

adjustment

to

ensure

proper

scope

measurements.

6

THM

550.

THM

560.

and

THM

565

TekMeter

Instructions

DMM

Operations

Meter

Bar

shows

the

measured

value

in

a

visual

form.

numerically.

Readout

shows

the

Min/Max

Readouts

show

the

O-OLO

|

measured

value

extent

of

variation

of

the

ie

cae

signal

over

time.

tha

clonal

g

variation.

TEKMETEF

v4

Ec

aac

1.300

Vm)

pes

now

;

=

or

|

ONO

to

display

ec

oon

N=

CJ)

and

operate

the

we

=

DMM

menus.

|

weren

Yooc

ie)

|

score

POSITION:

Seeeeen

ONCE

te

ih

a

O-O-0

RWV-AC

RANGE

me

Ororo

ic

AC)

mala

=

na

fel

Fe

AUTORANGE:

Range

selection

ae

=

Qn)

+

HOLD

pus

BOTH

switches.

Press

both

for

Autorange.

j

Tektronix

oud

ae

labels.

The

METER/SCOPE

button

lets

you

select

between

DMM

mode

or

scope

mode.

BOSSOI>

a

Controls

set

the

DMM

display

mode

according

to

the

METER

HOLD

button

and

readouts.

The

button

temporarily

freezes

the

display.

Note:

To

ensure

maximum

accuracy

in

DMM

measurements,

set

the

DMM

filter

for

the

line

frequency

used

in

your

location,

either

50

Hz

or

60

Hz.

See

DMM

Filter

on

page

16.

THM

550.

THM

560.

and

THM

SAS

Tel-Mater

Tnctrictinne

—

DMM

Operations

J

DMM

Operations

AC/DC

Volts

Measurement

a

Current

Measurement

a

|

&

a

Connect

voitage

probes

to

the

COM

and

DMM

connectors.

Connect

current

probe

to

DMM

and

COM

connectors.

OMM

COM

CHi

CH2

[eceeraree)

Pees!

eS}

600V

rms

max

DMM

COM

CH1

CH2

[

ES

ere

600V

rms

max

100mV/A

10mV/A

OFF

Press

if

in

Press

to

toggle

between

Read

results.

Adjust

range

only

if

scope

mode.

AC

or

DC

measurements.

needed.

Press

both

to

;

;

set

to

Autorange

mode.

Set

switch

on

Use

the

menu

to

specify

that

you

The

readouts

Adjust

range

only

current

probe.

have

a

current

probe

and

match

change

to

show

if

needed.

Press

the

scale

factor

of

the

current

Amperes.

both

to

set

to

probe.

Autorange

mode.

8

THM

550,

THM

560,

and

THM

565

TekMeter

Instructions

THM

550,

THM

560,

and

THM

565

TekMeter

Instructions

9

DMM

Operations

&—

4

DMM

Operations

Max/Min

Values

ES

Ohms

and

Continuity

»

-

oa

oy

w

Q

1))

BEEPERDON

OFF

weter

werer()]

ae

Q

Nn)

:

er

score(y}

|

score[y}

PORION

camsone

(SV-AC

3

The

measurement

window

always

displays

the

instantaneous

value.

i:

Connect

Pressifin

Pressonceortwiceto

Press

Select

to

turn

continuity

beeper

The

variation

window

displays

the

maximum

and

minimum

values

E

'

J

probes

across

scope

show

desired

display.

on

or

off.

and

the

difference

between

the

max

and

min

measurements.

“™

peat

a

mode.

circuit.

The

MAX

value

displays

the

maximum

value

measured.

This

value

--g

only

changes

with

a

higher

measurement

value.

The

MIN

value

displays

the

minimum

value

measured.

This

value

re

|

Diode

Test

only

changes

with

a

lower

measurement

value.

The

MAX-MIN

value

is

the

measurement

result

of

subtracting

the

MIN

value

from

the

MAX

value.

|

eee

|

i

merer(}

VOUS

fn}

ee

ee

a

ge

ee ee

ee

eo

oS

nn,

t

score

[Ay]

Posmon

Cara:

WAVEFORM

NOTE.

Exceeding

the

measurement

capability

of

a

manual

range

-

al

setting

stops

the

MIN,

MAX,

and

MAX

—

MIN

measurements.

j

Changing

the

range

restarts

these

measurements.

|

ee

at

en

--

|

Press

if

in

Press

to

display

Check

forward

voltage

©

Check

reverse

voltage

Pressing

the

SELECT

button

resets

the

MAX,

MIN,

and

MAX—MIN

scope

diode

test

readout.

drop

<2

V.

drop

>

2V

(infinity

values.

&-

|

mode.

readout).

The

Hold

and

AHold

values

are

explained

on

page

12.

10

THM

550,

THM

560,

and

THM

565

TekMeter

Instructions

K-.

‘a@

THM

550,

THM

560,

and

THM

565

TekMeter

Instructions

11

DMM

Operations

Bg

Eq

|

Hold

Values

a

METER

yours

aM)

bE

HOLD

Posi

cuasone!

FORM

RUNS

seore[%y)

"ene

woncee

foto

COCO

mm

Press

the

Hold

button

to

freeze

the

Hold

shows

reading

at

last

hold.

display.

werer(D)

X08

as)

He

ow

score

[A,]

POSITION!

CURSORS

waar

a

COCO

wm

Press

the

Hold

button

again

to

restart

the

display.

AHold

shows

the

difference

from

last

held

value

o,

and

the

present

measured

value.

12

THM

550.

THM

560.

and

THM

565

TekMeter

Instructions

DMM

Operations

DMM

Menus

SELECT SELECT

Press

SELECT

if

the

message

“PRESS

SELECT

TO

CHOOSE”

is

displayed.

Display

menus.

Use

direction

buttons

to

navigate

through

the

menus.

If

“PRESS

SELECT

TO

CHOOSE”

appears,

the

SELECT

button

must

be

pushed

to

make

the

selection.

If

the

message

does

not

appear,

THM

500

series

instruments

automatically

changes

to

the

chosen

selection.

THM

550.

THM

560.

and

THM

SAS

Tel

Matar

Tractor

atiane

on