Wavecom DT-8852 Instruction Manual

SOUND LEVEL

METER

INSTRUCTION MANUAL

REC

FAST

A/C

2

1. SAFETY INFORMATION

Read the following safety information carefully

before attempting to operate or service the meter.
Use the meter only as specified in this manual：

z Environment conditions

① Altitude lower than 2000 meters
② Relatively humidity ≤90％RH
③ Operation Ambient 0 ~ 40℃

z Maintenance & Clearing

① Repair or servicing not covered in this

manual should be performed by qualified

personnel.
② Periodically wipe the case with a dry

cloth. Do not use solvents or eradicator on

this instrument.

z Safety symbols

Comply with EMC

2. FUNCTIONS DESCRIPTION

This Sound Level Meter is designed for

noise project; quality control; illness prevention and

cure and all kinds of environmental sounds

3

measurement. It is applied to the sounds

measurement at factory; school; office; traffic

access and household, etc.

z This unit confirms to the IEC61672-1

CLASS2 for Sound Level Meters.

z MAX & MIN measurements

z Over range display

z Under range display

z A & C Weighting

z FAST & SLOW response

z Analog AC/DC outputs for connection to

frequency analyzer or X-Y shaft recorder

3. SPECIFICATION

Standard applied: IEC61672 -1 CLASS2

Accuracy: +

1.4dB

Frequency range: 31.5HZ ~ 8KHZ

Dynamic range: 50dB
Level ranges: LO：30dB~80dB

Med：50dB~100dB

Hi：80dB~130dB
Auto：30dB~130dB

4

Frequency weighting: A/C

Time weighting: FAST ( 125ms ), SLOW

( 1s )

Microphone: 1/2 inch electret condenser

microphone

Display: 4 digits LCD display with a

resolution of 0.1dB

Display Update: 2 times/sec.

MAX hold: Hold the Maximum reading

MIN hold: Hold the Minimum reading

HOLD: Hold the readings

Alarm function: “OVER”is when input is

more than upper limit of range.

“UNDER”is when input is less than upper limit

of range.

Analog output : AC/DC outputs from

earphone outlet

AC=1Vrms ，DC=10mV/dB

Data output : USB data traffic

Auto power off :

Meter automatically

shuts down after approx. 15 minutes of

inactivity.

5

Power supply : One 9V battery, 006P or

NEDA1604 or IEC 6F22.

Power life : About 30hours

Operation temperature and humidity:

0℃~40℃,10％RH~90％RH

Storage temperature and temperature:

-10℃~+60℃，10％RH~75％RH

Dimension : 278 (L) x 76 (W) x 50(H) mm

Weight : 350g

Accessories : Instruction manual, battery,

screwdriver, ￠ 3.5mm earphone plug,

windscreen, software, USB cable.

4. NAME AND FUNCTIONS

REC

FAST

A/C

1

2

3

4

5

8

6

7

10

9

11

6

DC 9V

OUTPUT

CAL

18

12

13

14

15

16

17

①

Windscreen

② LCD：

7

SYMBOL FUNCTION

LCD 4 digits

MAX Maximum hold

MIN Minimum hold

OVER over range

UNDER under range

FAST Fast response

SLOW Slow response

dBA A-Weighting(responseto human

sense)

dBC C-Weighting(response to

machine monitor)

30—130 Range indicate

REC Recording data into computer

AUTO Auto level range selection

FULL Memory full

HOLD Data hold function

AutopoweroffPress

the”SETUP“ button to disable

power off

Low battery indicate