Iwatsu SC7101 - General

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SC-7101

/SC-7102

Section

1

Specifications

1-1

GENERAL

The

frequency

counter

SC-7101/SC-7102

are

compact

and

light

weight

electronic

measuring

instrument

which

can

measure

frequency

of

wide

range

from

10

Hz

to

200

MHz.

Use

of

large

and

high

luminousity

LED

in

the

display

makes

reading

easier.

This

instrument

is

provided

with

follow-

ing

features.

Use

of

Easy-to-read

Large

Light

Emitting

Diode

The

LED

display

is

decimal

9

digits

+

1

digit

of

exponent

and

employs

Zero-blanking

methode.

Capability

of

Measurement

of

Low

Frequency

Signals

with

High

Resolution

This

instrument

allows

measurement

of

signals

of

low

frequencies

with

high

resolution

(normally

7-digits

per

1

s)

in

a

very

limited

time

by

the

reciprocal

methode

frequency

measurement.

Automatic

change

to

direct

frequency

measure-

ment

for

input

signals

of 10

MHz

or

more

enables

this

instrument

to

perform

measurement

of

input

signals

with

the

heightest

resolution.

Provision

of

DIFF

Calculation

Function

This

instrument

can

calculate

and

display

differences

between

the

values

of

input

signals

and

the

reference

value

by

a

simple

operation.

Allows

Easy

Systemization

of

Measuring

Since

mounting

of

an

optional

GP-IB

interface

or

a

centronix

type

parallel

interface

enables

output

of

measured

results,

external

reset,

remote

control

of

the

time

base, etc.,

this

instrument

can

be

built

into

a

systemized

configuration.

Built-in

Highly

Stabilized

Reference

Oscillator

and

Capability

for

External

Connection

The

SC-7101

and

SC-7102

have

built-in

high

stability

reference

oscillator

of

+3

x

10~’/month

and

#2

x

1078/day

respectively.

In

addition,

external

input

of

reference

sig-

nals

of

high

accuracy

is

possible.

4-Step

Setting

of

Sample

Rate.

(SC-7102)

Sample

rates

can

be

set

in

4-steps

of

200

msec

x1,

x2,

x

4

and

x

8

Improved

Shielding

Effect

The

specially

treated

cases

provide

better

shielding

effect

than

that

of

metal

cases

though

these

cases

are

made

of

light

weight

plastics.

Easy

Mounting

of

Optional

Supplies

Following

optional supplies

can

be

easily

mount-

ed.

(For

the

SC-0108

and

the

SC-0110,

select

either

one

only.

No

mounting

of

both

of

them

is

permitted).

*

Parallel

interface

SC-0108.

*

GP-IB8

interface

SC-0110.

On

SC-7102,

there

are

further

additional

op-

tions.

*

High

stability

reference

oscillator

the

SC-

0114.

(10

MHz

+

5

x

10-°/day).

*

High

stability

reference

oscillator

the

SC-

0115.

(10

MHz

+

2

x

10-$/day).

<Reference>

Out

of

the

above

options,

when

SC-0114

is

mount-

ed,

on

the

Name

plate

on

the

rear

panel

showing

the

Model

No., "B"

is

printed,

while

when

SC-

0115

is

mounted,

"C"

is

printed.