DATA PRECISION 5740 - Required Test Equipment; Overall System Performance Check; General Performance Check Overview; Performance Check Set-Up

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72-1002

Model

S740

COUNTER

Table

4-1

TEST

INSTRUMENTATION

Measure/Generate

Specifications

Ranges/Accuracies

Recommended

Instruments

Voltage

M

DCV:

±10V,

±100V/±0.1%

ACV:

2D0V,

50-6GHz/+l%

Data

Precision

Model

245

Resistance

0-lKn/+l%

Waveform

Gen

G

Sine

Wave:

5Hz

to

lOOMHz

Syntest

Model

Sl-

200

(IHz

to

200MHz)

Waveform

Meas

M

150MHz

Tektronix

Type

454

Oscilloscope

Coupler

Load

G

50-ohm

Tektronix

011-0049-01

Attenuator

G

0

to

SOdB

--

Timer

G

0

to

3600

seconds/0.5

sec

--

4.2.2

Display

Sypiptoms

Faulty

display

units

or

their

decoder-

drivers

may

be

detected

easily

by

observa

tion

and

analysis

of

improper

visual

dis

plays.

For

example,

if

a

non-numeric

character

appears

on

only

one

digit,

it

is

probable

that

the

fault

is

in

that

digit

or

its

single

decoder-driver

circuit.

If,

on

the

other

hand,

the

same

non-numeric

character

appears

in

a

group

of

digits,

it

is

probable

that

the

fault

is

in

the

de

coder-driver

and

associated

scanning

cir

cuitry.

4.3

TEST

EQUIPMENT

Measuring

instruments

and

test

standards

with

performance

specifications

as

listed

in

Table

4-1

should

be

used

in

the

proce

dures

as

described

in

the

paragraphs

that

follow.

4.4

OVERALL

SYSTEM

PERFORMANCE

CHECK

4.4.1

General

This

test

sequence

confirms

the

opera-

bility

of

the

instrument in

each

of

its

four

measuring

modes.

It

checks

the

per

formance

accuracy

only

to

a

wide

toler

ance.

If

any

one

of

these

tests

yields

an

incorrect

result,

or

if

a

subsequent

test

with

accurately

known

inputs

re

sults

in

a

Counter

error,

proceed

to

Paragraph

4.5,

and

perform

the

tests

described

therein

and

in

subsequent

paragraphs.

4.4.2

Set-Up

Use

a

coupling

capacitor

of

about

.OluF,

IKV

to

introduce

a

60Hz

input

to

the

Model

5740

input,

position

ATTEN

switch

to

X20,

and

operate

the

instrument

as

shown

in

Table

4-2.

[

NOTE

Use

caution

in

coupling

the

line-source

signal

to

prevent

acci

dental

short-circuiting

of

line

power.]

4-2

COrVRIGHTIITB

DATA

PRECISION

CORPORATION

PRINTED

IN

THE

US.A.