BRUEL & KJAER 2206 Manual de usuario

Instruction

Manual

Precision Sound Level

Meter

Type

2206

033-0120

2206

Small,

lightweight,

Precision

Sound

Level

Meter

fulfilling

requirements

IEC

Bri.iel

Kj~r

PRECISION

SOUND

LEVEL

METER

TYPE

2206

Revision

October

977

CONTENTS

INTRODUCTION

AND

SPECIFICATIONS

(PRODUCT

DATA)

.................................................

CONTROLS

..................

....

........

....

........

....

..........

..............................

.................... 5

OPERATION

........

....

.. .. ..

...

........

..............

......

..........

........

...................................... 7

3.1.

GENERAL CONSIDERATIONS .............

...........................................

...........

3.2.

BATIERY CONSIDERATIONS ....

.................................................

..............

. 7

3.3.

MOUNTING

MICROPHONE

.......

......................................................

. 7

3.4.

CALIBRATION ....

.......

...........................................................................

General

............

..........................................................................

......... 8

Calibration

with

Microphone

Type

4148

..................................................... 8

3.5.

SOUND MEASUREMENTS

.........................................................................

General

...................................................................................................

Procedure

for

Sound

Measurements

........................................................... 9

3.6.

LOCKING OF CONTROLS

..........................................................................

Locking

the

Attenuator

..........................................................................

.... 10

Locking

the

Weighting

Networks

................................................................

CHARACTERISTICS

.......

..........................................................................

Use

A & C

Weighting

Networks

.............................................................

. 12

Output

Socket

..........

......

.............................

;

............................................

Frequency Response

............................

.....................................................

Influence

Reflections

.....

..............................................................

........

Directional

Characteristics

.........................................................................

Effect

Vibrations

..............................................................................

3.8.

USE WITH PINK NOISE TEST RECORD

2011

................................

.........

FEATURES

2206:

• Fulfils

IEC

R 1

and

ANSI S

1.4

1971

Type 1

for

precision sound level

meters

• Special B &K 1

/2"

Condenser

Microphone

• A and

C-weighting

networks

•

Linear

position

FEATURES

2208:

• Hold

circuit

for

maximum

A-weighted

noise level

• Store

for

held

value

•

Fulfils

IEC

R 1

and

ANSI S

1.4-1971

Type 2

for

general purpose sound

level

meters

• B & K

Piezoelectric

microphone

•

A-weighting

network

• Easy conversion

for

"Precision"

measurement

COMMON

FEATURES:

• Fast

and

Slow

meter

damping

•

Dynamic

range up

140

dB SL (

130

for

2208)

• 0

utput

for

Tape Recorder,

Level Recorder

•

Light

weight

approximately

0,8

(28

oz)

• Large

tilted

meter

for

easy

reading

USES:

• Sound

measurements

industrial

work

areas

check

for

health

hazards

•

Traffic

noise

measurement

16-085

types

2206

and 2.

208

Miniature

Sound

Level

Meters

2206

•

Building

noise,

insulation

and

distribution

surveys

•

Community

noise surveys

• Product noise

measurements

for

development and

quality

control

•

Measurements

electroacoustic systems

These

miniature

sound

level me-

ters

provide a

quick

and reliable

method

determining

noise level.

They

are

the

ideal

tools

for

noise

abatement

engineers,

traffic

police,

2208

industrial

hygienists,

public

health

inspectors

and

others

whose

con-

cern

keep noise at a

toler-

able level

our

modern

industrial

society.

Portable

sound

level meters can

be used

profitably

for

initial

sur-

vey

noisy

environments

and

then

where

necessary, a

de-

tailed

analysis

can

be made using

complex

instrumentation

. The

big advantage·

these

miniature

meters

however,

that

their

simple

operation

makes

them

suitable

for

use ·by people

without

the

technical

knowledge

handle

the

more com-

plex

equipment.

Battery 1.5

Vo------<rr

OQff

'2206

----------,

I Condenser

I Microphone Polarization

Voltage

Adapter

(Source

follower)

(Type~4-1_48_)

...__-1

L-

_...._____.

Pl.,oeloct~

- - -

Microphone

I (Type 4117) I

I I

l220!_

_______

Meter

Voltage Voltage

Converter Regulator

~~-----

Hold

L-----'

lsi

2206

l._f

208

only

Rectifier

Output

740632

Fig.1.

Block

diagram

for

the

miniature

sound

level

meters

Description

The Type

2206

Precision

Sound

Level

Meter

and Type

2208

Noise

Event

Meter

are

two

variations

the

same

basic

instrument.

Both

meet

the

internationally

apprbved

standards

for

general

purpose

sound level

meters,

while

the

Type

2206

also

satisfies

the

require-

ments

for

precision

sound

level

me-

ters.

Various

special

features

have

been

included

the

two

instru-

ments

that

sound

level

meter

can be

obtained

with

only

those

fea-

tures

necessary

for

its

particular

use.

This

gives an

instrument

that

is both

inexpensive,

and

simple

operate. Reference

the

block

dia-

gram

Fig.1

shows

the

similarities

and

differences

between

the

instru-

ments.

The

microphone

normally

sup-

plied

with

the

Type

2208

the

diameter

Piezoelectric

Microphone

Type

4117.

This

is a

high

quality,

low

cost

measuring

microphone

de-

signed

primarily

for

use

general

purpose

sound

level

meters.

Its

high

capacitance

allows

used

with

amplifiers

having

moder-

ate

input

impedance

give ade-

quate

low

frequency

performance.

The

high

capacitance

also

permits

the use

relatively

long

connection

cables

between

the

microphone

and

the

sound

level

meter

(reducing

the

Briiel & Kjmr Briiel &

KJ-

Bruol

Kjaor

ccccccccooooccccccccccccccccccocooccccoccoccoccccc

Briiel

& Kj(8r Potentiometer Ronge,

Ro<tilier,

L-

lim. Froq.

:_Hz

'VIr

. Spoed:

mmf-

Popo<

Spoed:_....,..c.

C-hogon

50 25 ,

Condenser Microphone

4148:=f

860

Moosuring Obj.:

Microphones Piezoelectric Microphone 4117

~~u~~n~:~;~

Meters

()0 Free Field

---2010

---·105

o.u:._

Sign.: 0 0

430

10dB

1124

50 100

200

500

1000 2000 5000 0 0

10000 20000 40000 D A B C lin.

Multiply Fre<{vency Scole

Z.ro

t.....l:

1612/2112

A B C lin. 17

2221

Fig.2.

Typical

frequency

response

curves

for

the

microphones

possibility

reflections

from

the

op-

erators

body)

without

serious

loss

sensitivity.

A typical

frequency

re-

sponse

curve

shown

Fig.2.

The

performance

the

2208

with

this

microphone

accordance

with

IEC

for

general

purpose

sound

level

meters.

The

Type

2206

features

a special

8 &K

condenser

microphone

sys-

tem,

and

the

drcuitry

for

2208

has

also been designed

this

system.

The Type

4148

/2"

Con-

denser

Microphone

requires

polarization

voltage,

and

was

devel-

oped

for

these

miniature

instru-

ments.

It is

mounted

the

meter

means

the

0208

Adaptor,

and

when

fitted,

the

requirements

IEC, ANSI

and

DIN

for

precision

sound

level

meters

are

met.

The

Adaptor

contains

source

follower

(FET)

transform

the

high

imped-

ance

the

condenser

microphone

into

low

output

impedance.

A typi-

cal

frequency

response

curve

for

the

/2"

Condenser

Microphone

also

shown

Fig.2.

When

fitted

with

the

/2"

Condenser

Micro-

phone

and

Adaptor,

the

2208

be-

comes a Precision

Sound

Level

Me-

ter

accordance

with

IEC, ANSI

and DIN.

The Piezoelectric

Microphone,

Condenser

Microphone

and

Adap-

tor,

can be replaced by a

0037

Adaptor,

which

permits

connection

with

miniature

coaxial cables,

thus

allowing

the

sound

level

meters

be used as

indicating

instruments

for

8 & K

accelerometers.

should

be noted

however,

that

when

the

2208

is used

for

viQration

measure-

ment

the

weighting

network

will

influence

the

readings

making

accu-

rate

calibration

extremely

difficult.

Nevertheless,

the

accuracy

suffi-

cient

for

quick

estimates

vibra-

tion

level.

Two

attenuator

stages

are

pro-

vided,

and

these

are

connected

to-

gether

that

the

10 dB steps

range

are

obtained

with

the

best

possible

signal

noise

ratio.

simplify

readout,

the

range

selected

displayed

window

the

me-

ter

scale

the

2206

separate

push-button

switch

operates

the

first

amplifier

stage.

This

can be

used

increase

the

measuring

range

quickly

dB,

regardless

range

setting,

allow

for

sud-

den

high

levels.

The

range

control

switch

both

instruments

can be

locked

internally

any

its

ten

positions

(30

120

dB),

prevent

inadvertent

range

changes

when

the

instrument

be used by

experienced

personnel

The

use

the

10dB"

button

retained

while

the

range

selector

is locked.

Type

2206

equipped

with

the

and

C-weighting

networks

and

has, in

addition,

linear

position.

The

2208,

being

equipped

with

maximum

hold

circuit,

has

only

the

widely

used

A-weighting

network.

The

network

selector

switch

can

also be locked

prevent

accidental

changes

which

could

cause

false

readings.

The

A and

C-weighting

characteristics

are

shown

fig

The

second

amplifier

stage feeds

the

rectifier

and

an AC

output

termi-

nal. The

output

is used

with

Tape

Recorders

Level Recorders. (See

Fig.4)

The

rectifier

gives

correct

RMS

values

within

for

signals

with

crest

factors

full

scale

me-

ter

deflection

. The

internationally

standardized

"Fast"

and

"Slow

ter

damping

characteristics

are

pro-

vided.

The

meter

is a DC

moving

coil

instrument

with

ribbon

suspen-

sion

The

angled

meter

scale

is eas-

ily

read,

with

graduations

from

-1

0 dB

+ 10 dB

over

5 em

(2,25

in)

scale

length

the

Type

2208,

a special

cir-

cuit

can

hold

the

maximum

meter

deflection

that

occurs

during

measurement.

This

feature

partic-

ularly

useful

for

measurements

rapidly

changing

levels

such

traf

Bruel

Kjmr

Bru

el & Kjaer

ooooooooo

ooooooooooooooooooooooooooooooooooooo

ruei&Kjcer

Potenti

ome

Rang

ctifier:- -

Low

Lim

eed

/ s

Pape

rSpeed

/sec.

Cop

nhag

dB dB

M e

asur

f==

f:=

---

3015

2010

10 dB

Dat

f:=

Sign

0 0

100

200

500

000

2000

M ul

y Fre

Sca

le by Zero Level:

Fig.3.

Typical

and

C-weighting

characteristics

0634

Miniature Sound

Level Meter

2206

2208 Level Recorder 2306

Fig.4.

Portable

set-up

for

recording

levels

fie noise.

When

the

METER RESET

button

depressed

the

meter

de-

flection

cleared,

and

the

instru-

ment

ready

for

the

measure

ment.

addition

, a

held

level can

stored,

prevent

loss

the

reading

subsequently

higher

lev-

occurs

This

achieved

turn-

ing

the

Function

Selector

"Store",

which

grounds

the

incom-

ing

signal

prevent

from

reach-

ing

the

meter

The

hold

circuit

can

be by-passed

allowing

the

Type

2208

be used as a

general

pur-

pose

sound

level

meter.

Another

version,

the

Precision

Sound Level

Meter

Type

5606

available

special

order

for

vehi-

cle

noise

measurements

ISO

362

(moving

vehicles)

and

the

pro-

posed ISO

method

for

noise

meas-

urements

stationary

vehicles.

+ 1

dB 0

- 1

c - 2

;;

Deflection in

Similar

a Type

2208

with

Con-

denser

Microphone,

the

Type

5606

features

a speical

max

hold

circuit

that

can be

externally

controlled.

This

enables

tachometer

trigger

the

hold

function

when

preset

en-

gine

speed is

reached

The

curves

Fig.5

show

the

rela-

tive

meter

deflections

be ex-

pected

the

2208

position

"Fast"

with

MAX.

RMS

HOLD

switched

"On"

and

"Off"

for

dif

ferent

impulse

durations.

The

dot-

ted

line

indicates

that

position

"fast",

HOLD

"Off''

the

meter

de-

flection

will

return

the

real

value

for

steady

state

signal

with

dura-

tion

longer

than

about

1 second.

The

overshoot

position

"Fast",

Hold

"Off"

is as specified by

IEC

179.

Calibration

may

performed

with

either

the

Type

4230

Sound

Level

Calibrator

(94

1000Hz).

with

the

Type

4220

Pistonphone

250Hz)

. Because

the

2208

sound

level

meter

registers

the

weighted

sound

level, a

correc-

tion

factor

must

be applied

when

using

the

Pistonphone

with

this

strument

------

........

~-----

- 3

-4

pos

. " Fast", Hold "on" ,

- 5

- 6

- 7

-8

a: - 9

-10

-14

deflection in

pos

"Fa

Hold

"off"

ff'

100 200 500

msec

. 1

sec

171007

Impulse Duration

Fig.5

The

relationship

between

Impulse

Duration

and

Relative

Meter

Deflection

for

the

2208

Specifications

B & K

Type

Number

2206

220B

Measuring

Range:

135

dB(A)

135

dB(C)

135

dB(Lin)

Signal

Noise

Ratio:

Better

than

5 dB

for

the

lower

limit

Weighting

Networks:

and

plus

Linear

(20Hz

16kHz(±

3 dB))

Meter

Scale:

Graduations

from

-10

to+

dB. Range

displayed

window

Meter

Damping:

Fast

and

Slow

IEC

standard

179,

ANSI S1.

4-1971

and

DIN

633

Rectifier

Accuracy:

± 5%

for

signals

with

crest

factors

less

than

Hold

Circuit

Accuracy:

Held

meter

deflection

corresponding

maximum

RMS

"Fast"

response ± 2 dB

Better

accuracy

with

durations

longer

than

1 s (see

Fig.5)

Hold

Decay:

Less

than

1 dB in 5

minutes

25°C

(77°F)

Store:

Any

held

value

can be

stored

Reset:

Push

button

resets

meter

Input

Impedance:

2000

/ I

/ /

140

output

Impedance:

Less

than

Minimum

Load

Impedance

50000

Output

Voltage:

Approximately

2,5

RMS

for

full

scale

meter

deflection

Maximum

Output

20V

peak

Distortion:

Less

than

for

full

scale

meter

deflection

Noise:

(A-weighted)

Less

than

3,1

t-N relative

input

with

across Less

than

1,2/.N

relative

input

with

4000

input

across

input

Microphone

Type:

B & K 1/ 2"

Condenser

Type

4148

B & K

Piezoelectric Type

4117

(28

V DC

polarization

Voltage)

Microphone

Frequency

Linear

± 2 dB

between

4Hz

and

16kHz

for

incidence

Linear

± 3 dB

between

4Hz

and

10kHz

for

incidence

Response:

perpendicular

the

diaphragm

free

field

perpendicular

the

diaphragm

free

field

Individual

calibration

curve

supplied

Individual

calibration

curve

supplied

Microphone

Sensitivity:

Approx

per

N/ m2

Approx

. 3

per

N/ m2

Microphone

Capacitance:

4000

Microphone

Temperature

0,015

dB/

°C

(-0,0083

/°

Coefficient

Battery

Type:

Single

cell,

IEC R

& K

order

number

0009)

Battery

Life:

hours

continuous

operation

hours

continuous

operation

Operating

Temperature

-10

to+

50°C

to+

122°F)

Storage

Temperature

(battery

-20

70°C

(-4

+ 1

58°F)

removed):

Humidity

Range:

90%

relative

humidity

Dimensions:

Length:

235

(9,2

in)

186

(7,3

in)

Width:

(3,3

in)

(3,3

in)

Height:

(2,0

in) 51

(2,0

in)

Weight:

0,83

(29

oz)

including

battery

0,8 kg

(28

oz)

including

battery

Accessories

Included

Condenser

Microphone

4148

Piezoelectric

Microphone

4117

Microphone

Adaptor

0208

Windscreen

0207

Windscreen

0237

Carrying

Case

0060,

Pistolgrip

Handle

0129,

Wrist

Strap

0128

Screw

Driver

0001

1,5

Battery

IEC type R

("C"

size) QB

0009

Accessories

Available:

Set

6 spare

Windscreens

0254

Set

spare

Windscreens

0253

3 m

Extension

Cable

0063

6 m

Extension

Cable

0061

Input

Adaptor

for

accelerometer

cable

261

Condenser

Microphone

4148

Microphone

Adaptor

0208

Set

Windscreens

for

Microphone

0254

Sound

Level

Calibrator

4230,

Pistonphone

4220

1,2

Output

Cable

0037,

Tripod

0049

Input

Adaptor

for

accelerometer

cable

0037

Tabla de contenidos

Otros manuales de Instrumento de medición de BRUEL & KJAER

BRUEL & KJAER

BRUEL & KJAER 9737 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2245 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER VIBROCONTROL 920 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2236 Instrucciones de instalación y funcionamiento

BRUEL & KJAER

BRUEL & KJAER 2203 Instrucciones de montaje

BRUEL & KJAER

BRUEL & KJAER B&K 2245 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER PULSE 3560-B Guía

BRUEL & KJAER

BRUEL & KJAER 2972 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 2513 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2209 Instrucciones de montaje

BRUEL & KJAER

BRUEL & KJAER 2307 Manual de funcionamiento original

BRUEL & KJAER

BRUEL & KJAER 4220 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 1101 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2537 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER Mediator 2238 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2260 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 4320 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER VIBROCONTROL 1800 Series Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 1625 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2033 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2203 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 2607 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 2236 A-008 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 4448 Manual de usuario

Manuales populares de Instrumento de medición de otras marcas

Suaoki

Suaoki D40 Manual de usuario

Elster

Elster BK-G1.6 Manual de usuario

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manual

Duratool

Duratool D03128 Manual de usuario

Vega

Vega VEGAPULS 65 Manual de usuario

Tonghui

Tonghui TH2618B Manual de usuario

Tenmars

Tenmars TM-801 Manual de usuario

MSR

MSR 145 Manual de usuario

TPS

TPS WP-82 Manual de usuario

ELMETRON

ELMETRON CP-511 Manual de usuario

PCB Piezotronics

PCB Piezotronics 003C30 Manual de usuario

Tenma

Tenma 72-10465 Manual de usuario

Endress+Hauser

Endress+Hauser Proline Promag 50 Especificaciones técnicas

Siemens

Siemens SITRANS F Coriolis FCT030 Manual de lista de piezas

KLINGER

KLINGER CMF V Series Manual de usuario

EXFO

EXFO FTB-2 Manual de operación y mantenimiento

Keysight

Keysight M8290A Manual de usuario

ADTEK

ADTEK MW-5 Manual de usuario