Sharp R-309B Instruções de Operação descarregar pdf (Página 12)

..

a--_

.. -

..

-

...

SECTION 2

INSTALLATION

2.1

lin

packing

and

In

spection

When

unp

aoking th e Model

CE-

7

FM

Commu

ni

catio

ns

M

on

it

o r , i ns pe ct t

he

pack

-

ing box a nd th e ins

tr

u

me

nt for si

gn

s of

pos

sible

ship

ping d

am

age and see

if

th e

auxili

ary

items

li

st

ed

in T

able

1-1

and

.shown in Fi

gure

1--:1

a re pr e

sent.

V

erify

s

ati

sf

actory

perform

anc

e

as

outlined in

the

Operating

Instruction

s (S

ection

3).

If

the

instrument

is

d

am

ag

ed,

fail

s to

op

erat

e

prop

erl

y,

or

if

any of

the

a

LL

xi-

li

ar

y it

em

s ar e mi s

sin

g, fil e a c

la

i m

w

it

h th e

tran

s p

ort

ati

on

age

ncy

or,

if

insured

sepa

ra

te

ly ,

wit

h t

he

in

sur

an ce

company

.

2.2

Environm

ental

Hequir

em

cnt

s

2.2.1

Temperature

Th e

CE-7

is

desi

gned to ope

ra

te

b

e-

tw

een

+

lOO

F and +130° F (

am

bi

ent).

Es-

peci

ally

in th e fiel d, th

es

e t

emper

atur

es

can

eas

ily

be

exceede

d

if

n

or

mal c

ar

e is

not tak

en.

(For in stan ce, th e in

terna

l

te mp

er

atur

e of a

clos

ed a

uto

mob

ile t r unk

may

exce

ed 150

0

F dur ing s u

mme

r dav -

li

ght

ho

urs.

) Avoid

usin

g th e

in

str

um

ent

outsid

e

in

bright

s unlight on a

hot

da

y.

Do

not

blo ck the c

abinet

ve n

tila

ting

louvers.

Ex ce

ed

ing th e upp

er

or

low

er

t

emper

atur

e

l

imits

for

exte

n

ded

pe r

iods

may

not

r e

sult

in noti ce

abl

e

da

mage

to the

in

strum

ent,

but

may

ca

use

poo r

performa

nce

or

m

alfunctio

ning.

2.2.2

RF Fields

Where

e

xtr

em

ely

high R F r

adiation

fi

eld

s

exist

(

such

as

when

the

CE-7

is

u

sed

ne

ar

a

tran

smitt

er

), the tel

escoping

an

te

nna

should be push ed

cl

own to r

educ

e pi c

kup.

W

he

re

many hi

gh-

pow

er

tr

an

smitt

er

s a

re

in use, ad

jacent

-c

ha

nne

l int

erf

ere

nce may

be

expe

r

ienced

if

t

he

transmi

tte

rs

a r e

ope

r -

ati

ng within 90 kH z

of

eac

h oth

er.

In

su

ch

cas

e s ,

the

S

EL

ECTI VIT Y sw

itc

h on th e

Model 303

Bro

ad band Mix

er

should

be

pla

ced

in th e SH

ARP

po

siti

on.

NOT E

In the SHAR P pos itio n, th e IF

ba ndw idth is n

ar

r o

wed

to th e ex -

te nt t

hat

abso

l

ute

ac

cu

ruov

of

the

devi ati on di

spl

ay on

the

O~c

illo



scope

or th e m

et

er

readin

g on th e F

1\1

Devi

ati

on m

et

er

may be s lig h

tly

degr

aded. Th e

SHARP

po

siti

on

should,

therefore,

be

us

ed

only

wh

en

a bsol

utely

neces

sary

.

2.3

Pow

er

R

cquirement

s

Th e

CE-7

ope

ra

tes

from

a 11

5-

or 230 -

vo

lt

(±10%)

ac

so

u

rce

, 50 to

400

H

z.

Powe r

cons

umptio

n

is

75

watts

.

2.4

Warm-up

Rcquir

cm

cnts

Th e

acc

u

racy

of

CE- 7

measurem

ent

s

d

ep

ends

on m

aint

ainin

g all

oscill

ator

cry-

s

ta

ls

at a

co

ns tant

temperature,

so

th

at

a

nyo

ne of th

em

may be

se

le cte d

as

th e

"m

a

st

er-

os

cill

ator"

c

rys

ta

l at any ti m

e.

A th

ermo

st

ati

c

all

y cont r oll e d o

ven

w

hic

h

r e

quire

s a 30- minu

te

wa

r m- up

peri

od

hou s e s up to 23 c

ry

s

ta

l

s.

Oven op

er

ation

is in de p

en

d

ent

of th e VOLU ME

PO\

VER O

FF

control

;

it

i s r

ecomm

ended

that

the

in

stru-

m

ent

be in

st

all

ed s uch th

at

it

can

be k

ept

plu

gged

into

its

power

s our ce

and

be r eady

to mak e

pr

e

cis

e

mea

sur

em

ents

within

se

c-

on

ds

afte r powe r i s a ppl

ie

d to mea

surin

g

and gene

rat

ing

circuit

s.

NO

TE

If

th e

in

strument

ha s be

en

sto

red

at

a t

em

p

er

ature

bel ow

+32

0

F, add i-

tion

al w

arm-up

tim

e may be r e

quir

ed.

2.5

Preparation

for

Rc

shipment

No

sp

eci al i

ns

t r uctio

ns

a r e

re

qui

re

d

for

pack

ing th e Model C

E-

7 Multi- Cha

nne

l F M

Com

mu

nicatio

ns

Mo

nito

r ,

if

it

bec

om

es

ne ces s

ar

y to r e

tur

n

the

i

ns

t r

ume

nt to the ·

fa

ct

or

y f

or

s e

rv

i ce or r ep

air,

howev

er,

it

is

re

comm

end

ed

that

the

shippin

g box and

fo

am

packa

gin

g be

kept

f

or

this

pu

rpos

e .

2-1/2-2

5601"0015

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 95 96

Comentários a estes Manuais

Sem comentários