Elenco Electronics MO-1251 Instrukcja Użytkownika Pobierz pdf (Strona 18)

Cable testing

Coaxial cables

and transmission

lines

behave like a capacitor when

open

at both ends. The LC102

can

therefore

be used to determine

the

length

of a cable or the

dis-

tance to

an open. That

is

done

by

first measuring

the capacitance of

one

foot

of the cable under test,

and then measuring

the capaci-

tance

of the entire

length.

The en-

tire capacitance is

then divided by

the capacitance per foot

to

find

the

distance to the

break.

Likewise, coaxial cables behave

like an inductor when shorted. So

the

LC102

can be used to deter-

mine

the approximate distance to

a short.

The inductance

per

foot

of

a

sample

cable

is measured,

and

then the

inductance

of the sus-

pected cable

is

measured. The

total

inductance is

then divided by

the

inductance

per

foot to find the

distance to the short.

Accessories

The LC102 is supplied with an AC

power adapter

/recharger,

and test

leads and an adapter to connect to

larger

components. It

also

comes

with

a test -lead mounting

clip

and

a

test -button

hold

-down rod.

Optional

accessories include

a

touch test probe,

a field

calibrator,

a

rechargeable

lead

-acid battery,

an SCR/triac

tester, a chip-

compo-

nent

test lead,

a bus

interface

for

the

IEEE

488 bus,

and a 220 -volt AC

adapter /recharger.

An

easy -to -use

component holder is

also available

that

makes

testing

a

lot

quicker

and,

at the same time, frees

up

your hands for

doing all sorts

of

other things.

We're

sure that the LC102

will

feel at home in your repair

shop or

research

and

development center.

Its

advanced features will

allow

you to

breeze through tests that

used to

take a lot more

time.

The

LC102 may

end up paying for itself,

by the amount

of time saved. And,

once you become familiar with

its

controls, you'll find

the

LC102

is

very

easy -maybe

even fun -to

use. Of course, with

a

suggested

retail price

of

$1895.00,

the LC102 is

an investment

for serious

trou-

bleshooting, not for fun.

R -E

Try

the

Radio

Electronics

bulletin board

system

(RE

-BBS)

516

-293 -2283

The more you use it the more

useful

it

becomes.

We support

300 and 1200 baud

operation.

Parameters:

8N1

(8

data bits, no

parity,

1

stop bit) or 7E1

(7

data

bits, even parity, 1

stop bit).

Add yourself

to our user

files

to

increase

your access.

Communicate with

other

R -E

readers.

Leave your comments

on R -E with

the

SYSOP.

RE-BBS

516-293-2283

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