Prokit's Industries MT-4018 User Manual

SOUND LEVEL METER

Users Manual

■. Introduction

Please read the following information carefully

before using the meter. The Sound Level Meter has

been designed to measure sound level for various

environments. It is used to detect noise, music level

or sound engineering...

1.1 Precautions safety measures

Please use it according to the following usage.

Environment conditions:

● Altitude: less than 2000 meters.

● Relatively humidity 80% max

● Operation temperature 0~40℃

Maintenance & save:

Do not clear the meter using alcohol and impregnant.

if you do not use it for a long time, please take out the

battery and place the instrument in a dry surrounding.

Safety symbols:

Meter is protected by double insulation

Comply with European Union’s 93/68/EEC

1.1.1 During use

1. Do not use

wet place.

2. When you do not use for a long time, please take

out batteries

electrolyte.

3. Auto-range measuring (30-120dB) is unfit for

measuring instantaneous and impactive noise.

4. To measure sound level in a windy environment,

please put windscreen

avoid noise from wind.

5. If battery symbol is on the screen, it indicates

voltage is low and must replac

you to use alkaline battery.

6. Do not measure when meter is vibrant.

7. After power of

two seconds.

the meter in a high temperature or

to avoid damaging the meter by

on the microphone to

e battery. Suggest

f, to turn power on again, wait for

1.2 Functions & Features

● automatic ranging / manual ranging selection.

● Analog bar indicator.

● Frequency weig

● Range display.

● A utdown / continuous working mode

utomatic sh

selection.

● Low battery voltage indication.

● Sound OVER or UNDER display.

● Software calibrating to insure high reliab

Good circuit designed to save power.

●

hting A Type.

ility.

■. Features

● Th cording to the IEC651

e meter has been designed ac

Type 2, ANSI S1.4 Type 2.

● Response frequency: 31.5Hz—8kHz.

● Accuracy：30~60dB ±

● Resolution: 0.1 dB.

● M 60dB, 50—80dB,

easurement range：30—

70—100dB, 90—120dB.

3 dB; 60~120dB ±2 dB.