Er man, Introduc, Safety i – Velleman AVM2050 User Manual

Page 2: General, Battery, Range, Output, Respons, Ction, Instructio

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Introduc

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w sound levels

ices and airpo

sult readout, w

Battery leve
7 selectable
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Safety I

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General

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All modificati
covered by t
Only use the
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accept respo
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damage by le

Battery

The AVM205
Open the bat
To test the b

EMARKS:

• Set the R

• Remove t

Range

Select 1 of th
each of the 7

Selector

position

Measuring

range

Example: wh

Output

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audio cable t
Always bear
Set the RANG
internal amp
entirely instr
analyzer or a

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frequency: fa

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this device aw

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he warranty.

device for its

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50 requires on

ttery compart

battery, put th

RANGE selecto

the battery wh

he 7 measurin

7 ranges. The

60dB

50-66dB

hen the RANG

nect the AVM
to connect the

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any other mea

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e switch has 2

kes the meter
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evice or the p

dispose of the

for recycling.

vironmental ru

t your local w
M2050
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t install or use

measure the

interrupted o

t the acoustics

swift measure
see §4)
r 50 to 126dB

the device to a

ast / slow re

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ons

way from child

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evice from sh

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s intended pur

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ny ensuing de

on immediatel

ched off until

ment

ne 9V battery

tment and rem

he RANGE sele

or to OFF when

hen you will n

ng ranges (16

pointer indica

70dB

60-76d

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2050 to reco

e device to an

the output sig

o a value for w

moving the sig

rdings. Conne

asuring instrum

2 positions: FA

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age noise leve

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about this p

package indica

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This device s

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waste dispos

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sound level in

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s of studios, t

ments in any

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a hi-fi installa

esponse: to m

s and measur

ren and unau

ality Warran

m rain, moistu

m dust and ex

ocks and abu

of the device b

dden for safet

rpose. Using t

guidelines in

efects or probl

ly after it has

it has reached

. Alkaline batt

move the old b

ector to BATT:

n you are not

not be using th

dB per range)

ates the sound

80d

dB 70-8

set to 80dB an

rding or other

AUX or LINE

gnal is influenc

which the max

gnal. Use the

ect the output

ment.

AST and SLOW

sudden chang

el measureme

M2050

2

er man

roduct

ates that dispo

teries) as uns

hould be retu

sal authoritie

anual thoroug

ct your dealer

n virtually eve

. It can be us

heatres and h

location.

ts (see §5)

tion or test eq

measure soun

rements (see

thorized user

ty on the last

ure, splashing

xtreme heat.

se. Avoid brut

before actually
ty reasons. Da

the device in a

this manual i
lems.

been exposed
d room tempe

teries usually

battery. Insert

: if the meter

using the AV

he AVM2050

) using the RA
d level compa

dB

9

86dB 80

nd the pointer

r equipment t

input of a rec
ced by the int

ximum deviati

A weighting fo
with high imp

W.

ges is the sou

ents. Short so

ual

osal of the dev

orted municip
rned to your d

es.

ghly before br

r.

ry acoustic en
ed to measur

hi-fi installatio

quipment (see

nd peaks or av

§8)

s.

t pages of this

and dripping

te force when

y using it.

amage caused

an unauthorise

s not covered

d to changes i

erature.

give better re

t the new one

moves to the

VM2050. That

for a while.

ANGE selector

ared to the ref

90dB

0-96dB

9

r points to -3,

hrough the OU

corder.
ternal filtering

on of the met

or recordings
pedance head

und level. This

und surges ha

vice after its l

pal waste; it s

distributor or

inging this de

nvironment (h

e the noise le

ns. The AVM2

e §6)

verage sound

s manual.

liquids.

operating the

d by user mod

ed way will vo

d by the warra

in temperatur

esults and last

e. Mind the po

BATT TEST a

t way the batt

r. The number

ference value.

100dB

90-106dB

the sound lev

UTPUT connec

process.

ter is never m

with voices a

dphones, an os

s position is id

ave little effec

ifecycle could
hould be take

to a local recy

vice into serv

high or low fre

vel in factorie

2050 has an

levels (see §7

e device.

difications to t

oid the warran

anty and the d

re. Protect the

t longer.

olarity.
area, the batte

tery will last lo

rs refer to the

.

110dB

100-116dB

vel is 77dB.

ctor. For exam

ore than +4 t

nd the C weig

scilloscope, a

deal for peak m

ct.

Rev.

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harm the

en to a

ycling service

vice. If the dev

equency, high
es, schools,

easily readab

7)

the device is n

nty.

dealer will not

e device again

ery is OK.

onger.

zero point of

120dB

110-126d

mple: use an

to prevent the

ghting for

frequency

measurement

01

n nv

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vice

or

le

not

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