B&K 281 - Introduction; Specifications; DC Voltage Measurement Specs; AC Voltage Measurement Specs

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INTRODUCTION

Тһе

B

&

K—Precision

Model

281

Digital

Multimeter

is

a

significant

con-

tribution

to

the

instrumentation

market.

Low

cost

and

high

performance

have

been

engineered

into

this

instrument

to

make

available

to

the

service

technician,

industry

and

training

institutions

a

digital

multimeter

which

is

competitively

priced

with

existing

analog

meters

and

which,

at

the

same

time,

exceeds

the

performance

of

these

meters.

In

addition,

the

basic

instru-

ment

has

been

designed

for

maximum

simplicity

of

operation

and

minimum

error

of

reading.

The

basic

design

features

of

this

instrument

make

it

an

ideal

replacement

for

existing

VTVM's,

multimeters

and

FET/VOM’S.

The

instrument

is

"capable

of

measurement

of

DC

and

AC

current

and

Ohms.

The

high

input

impedance—10

megohms

on

all

yoltage

ranges—as

well

as

the

wide

resistance

range—10

ohms

full

scale

to

10

megohms

full

scale—make

this

instrument

an

ideal

replacement

for

conventional

analog

type

instruments.

In

addition

to

providing

equivalent

functions

and

ranges,

the

inherent

accuracy

of

this

instrument

provides

a

significant

margin

of

performance.

SPECIFICATIONS

DC

VOLTAGE

Ranres

Жеты...

--0—100mv,

1.00Volt,

10.0Volts,

100Volts,

1.00Kilovolt.

Oycuianpe

...

т...

100

percent

to

--

199гау,

1.99Volts,

19.9Volts,

199Volts,

1.5Kilovolts.*

Maximum

DC

Input

...1500

Volts

d-c

or

d-c

plus

a-c

peak.

EECGUITACY

ste

REC

+l

percent

of

full

range,

+1

digit.

Input

Impedance

......

10

megohms

Polarity

Switching

.....

Function

switch

provides

polarity

reversal

capa-

bility.

Wrong

Polarity

Indication

+

s

e.

If

a

DC

voltage

of

the

wrong

polarity

is

applied

to

the

input,

the

first

digit

(“1”)

will

remain

on

and

the

second

and

third

digits

will

remain

off.

Overrange

Indication

..If

the

input

voltage

exceeds

200

per

cent

of

full

scale,

the

first

digit

(“1”)

will

remain

off

and

the

second

and

third

digits

will

flash

on

and

off

to-

gether.

AC

VOLTAGE

(peak-reading

circuitry

calibrated

to

read

RMS

value

of

pure

sine

wave)

Ranges.

ТЕК

дам

0—100mv,

1.00Volt,

10.0Volts,

100Volts,

1.00Kilovolt

RMS.*

*Do

not

exceed

input

level

of

1500V

dc

or

1500V

(dc+ac

peak).

3

Я

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