Triplett 60-A User manual

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-------- MODEL

t 60-A

VOLT-OHM-MI

LLIAMMETER

www.SteamPoweredRadio.Com

SAFETY

RULES

WARNING

This

tester

has

been

designed

with

your

safety

mind

However

design

can

completely

protect

against

incorrect

use

Ele

ctrical

circuits

can

dan

gerous

and/

lethal

when

lack

caution

poor

fety

practices

are

used

READ

THE

MANUAL

Read

this

Instruction

Manual

carefully

and

comple

te-

ly.

Voltages

and

currents

within

the

capab

ility

this

test

equipment

can

hazardous

llow

the

instruc

tions

this

manual

for

every

measurement

Read

and

understand

the

general

instru

ctions

before

attempting

use

tester

not

exceed

the

limits

the

tester

SAFETY

CHECK

Double

check

switch

setting

and

lead

connections

before

making

measurements.

Are

you

following

all

the

instructions?

Disconnect

the

tester

Lurn

off

the

power

before

changing

switch

positions

not

connect

circuits

with

voltage

present

when

switch

ohms

current

position

When

replacing

fuses

use

only

specified

type

fuses

and

insert

correct

fuse

holder

DON'T

TOUCH

Don't

touch

exposed

wiring,

connections

other

"live"

parts

electrical

circuit.

doubt,

check

the

cuit

first

for

voltage

before

touching

Turn

off

the

power

circui

before

ecting

test

www.SteamPoweredRadio.Com

probes

sure

there

voltage

present

before

you

touch

the

circuit

not

use

cracked

broken

test

leads.

HIGH

VOLTAGE

DANGEROUS

Always

start

with

the

power

off.

sure

there

voltage

present

before

making

connections

lhe

circuit.

Don't

touch

the

tester

its

test

leads,

any

part

the

circuit

while

Before

disconnecting

the

tester,

turn

the

circuit

off

and

wait

for

the

meter

return

"zero

. "

DISTRIBUTION

CIRCUITS

PACK

PUNCH

high

energy

circuits

such

distribution

trans

formers

and

bus

bars

dangerous

arcs

explosive

ture

can

occur

tbe

circuit

shorted.

the

tester

connected

across

high

energy

circuit

when

set

low

resistance

range,

current

range

any

other

low

im-

pedance

range

the

circuit

virtually

shorted.

Special

equipment

designed

for

use

with

these

cir

cuits

available.

Contact

qualified

person

for

assist-

ance

before

attempting

make

measurements

any

high

energy

circuit.

SAFETY

ACCIDENT

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TABLE

CONTENTS

Page

No.

Specifications

Description

General

Instructions

Measuring

Resistance

Measuri

11g

Volts

Measuring

Volts

Measuring

Output

Voltage

Measuring

Current

Measuring

Current

With

Model

Adapter

Measuring

Decibels

(

)

Confidence

Test

Calibration

Maintenance

Accessories

Replaceable

Parts

List

Parts

Location

(Circuit

Board)

Schematic

(

Fold

Out)

Warranty

Printed

U.S

Part

84-278B

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SPECIFICATIONS

RANGES:

VOLTAGE

0-0.

volts

approximately

ohms/vol

(see

page

for

instructions).

0 -

10,

100,

300

1000

volts

approxi-

mately

20,000

ohms/volt

VOLTAGE

0 - 3,

10,

100,

300

1000

volts

approxi-

mately

5,000

ohms/volt

CURRENT

0-0

100

1000

milliamperes

approxi

mately

320

millivolts

RESISTANCE

0-lk

10k,

100k,

Meg

(12,

12k,

120k

ohms

center

scale).

DECIBELS

dB.

CURRENT

RANGES

WITH

MODEL

ADAPTER

60,

300

Amps

OHMMETER

SPECIFICATIONS

Range

Voltage

Volts

Current

Power

Trans.fer

Load

(Max)

142

. 4

Maximum

Values

XIO

XIOO

Xlk

l.7 l.7

l.7

. 2

l.42

0.14

6.04

0.06

XlOk

10.2

0.09

0.22

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SPECIFICATIONS

(cont'd.)

ACCURACY

(Calibrate

77°

F):

Voltage

± l l /

full

scale

value

Current

±1

1/2%

full

scale

value

Voltage

full

scale

value

Resistance

± l l

/2%

arc

length

METER:

Suspension

type

mirrored

scale.

Separate

housing

for

easy

replacement.

TEST

LEADS:

One

red

and

one

black

test

lead

supplied,

each

inches

long.

CARRYING

HANDLE:

Position

indent

provides

inclined

tester

stand.

OVERLOAD

PROTECTION:

Meter

movement

protected

diode

module.

1/8

Amp/250V

Fuse

(Littelfuse

362

125

8AG).

Amp/

250V

Fuse

(Bu

ssmann

ABC-1

Littel-

fuse

314001

3AB).

Amp/

I000V

Fuse

located

inside

tester.

Re-

place

with

Bussmann

HVA-2

Littelfuse

621002

BATTERIES:

One

Volt

"D"

cell

(NEDA

3F).

One

Volt

"transis

tor

battery

(NEDA

1604).

WEIGHT:

Approximately

1/2

pounds.

SIZE:

Approx

imately

1/4"

x 5

1/4

" x 7

1/4".

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DESCRIPTION

The

Triplett

Model

- A

Volt

Ohm

Milliammeter

(VOM)

multi

range

instrument

for

general

electrical

and

electronic

trouble

shooting

and

measurement.

has

been

especially

designed

satisfy

the

need

for

preci-

sion

instrument

which

can

stand

under

rigorous

hard

usa

g e

the

industrial

and

maintenance

environment

and

the

same

time

provide

degree

safety

its

use

heretofore

unavailable

with

instrument

this

kind.

Maintenance

simplified

designing

independent

meter

module

for

quick

replacement

service

and

easy

parts

layout.

X'TRA

RUGGED:

Unique

design

and

selection

materi-

als

permits

the

strument

withstand

the

normal

acci

dents

dropping

and

rough

handling

which

occur

hard

day

use.

The

Model

- A

warranted

with

stand

accidental

drop

five

foot

height

with

viation

from

its

stated

accuracy

not

exceeding

4%.

The

warranty

does

not

include

mechanical

parts

being

defaced

(

scratched

etc.

)

from

drop

normal

usage

OVERLOAD

PROTECTED:

The

instrument

has

been

en-

gineered

for

significant

reduction

the

need

for

nte

nance

virtual

elimination

parts

burn

out

(other

than

fuses

and

parts

damage

from

severe

mechanical

abuse.

Three

fuses

are

employed

for

unusual

protection

the

instrument

and

safety

for

the

user

The

Amp

and

Amp

instrument

fuses

are

used

for

normal

overload

con

ditions

Spares

for

each

are

included

the

inst

ment

Protection

provided

for

high

energy

fault

cur

ents

yond

the

capabilities

the

instrument

fuses

the

pacity

the

Amp/

1000V

(

kW)

fuse.

SAFETY

DESIGNED:

Unusual

effort

has

gone

into

the

in-

strument

design

provide

the

greatest

possible

safety

the

user

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DESCRIPTION

(

cont

d.)

The

Model

- A

provides

specially

engineered

inter-

nal

electrical

system

prevent

explosive

arcs

high

energy

circuits

the

Amp/

1000V

(20

)

fuse

ca-

pacity

Complete

10sulation

the

instrument

itself

plus

new

type

test

lead

are

additional

safety

features

CONFIDENCE

- T E

ST:

feature

built

into

the

instrument

for

periodic

reassurance

checks

its

meter

While

not

intended

comprehensive

test

the

ins

ument

does

perm

it a

high

level

confidence

the

instrument

meter

the

pointer

indicates

within

the

area

the

test

symbol.

Ranges

l1ave

been

designed

cover

nearly

all

applica-

tions

with

the

added

convenience

signal

level

measure

ments

decibel

decade

steps

The

carrying

handle

can

rotated

provide

for

placing

the

ins

rument

viewing

angle

app

oxi

mately

degrees

sepa

r a t

ely

sealed

r y

compartment

permits

ac-

cess

batteries

and

fuses

without

removal

the

rema

in-

der

the

instrument

addition,

battery

aci.ds

are

sealed

off

prevent

damage

components

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GENERAL

INSTRUCTIONS

INSTALL

BATTERIES:

•

Loosen

captive

screw.

Slide

cover

off.

Install

batteries

Replace

cover.

ADJUST

POINTER

ZERO:

With

unit

operating

posit

ion

use

screwdriver

adjust

pointer

for

zero

indication.

While

keeping

the

pointer

zero

reverse

the

rotation

the

screw

slightly

disengage

it.

This

will

reduce

the

affect

pointer

shift

under

shock.

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GEN

RAL

INSTRUCTIONS

{cont'd.)

START

WITH

HIGHEST

RANGE

When

the

approximate

value

the

voltage

cur

ent

being

measured

11ot

known,

always

start

with

the

high-

est

range

avoid

overload

and

blowing

fuse

RANGE

CHOIC

For

greatest

accuracy

choose

the

range

which

allows

readings

made

the

upper

(right

hand

)

portion

the

scale

Accuracies

are

rated

percent

full

scale

the

closer

full

scale

the

better

the

accuracy

NOT

CHANGE

SWITCHES

UNDER

LOAD

Quality

switches

are

used

but

any

switch

will

arc

changed

while

under

load

Disconnec

the.

test

probes

shut

off

the

circuit

under

test

before

the

range

switch

polarity

switch

positions

are

changed

This

practice

will

result

increased

life

and

reliability

the

instrument

MEASUREMENT

ERRORS

Readings

the

£ensitive

ranges

may

some

mes

different

than

expected

due

thermoelectric

electro-

chem

cal

effec

t s .

Readings

the

high

resistance

ranges

can

affect-

touching

the

circuit

causing

the

body

t o

act

shunting

resistor.

Consideration

should

given

the

affect

the

instrument

when

measuring

tages

from

sources

high

impedance

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