Extech 407790A Handleiding

Extech Geluidsniveaumeter 407790A

Bekijk gratis de handleiding van Extech 407790A (53 pagina’s), behorend tot de categorie Geluidsniveaumeter. Deze gids werd als nuttig beoordeeld door 70 mensen en kreeg gemiddeld 4.8 sterren uit 35.5 reviews. Heb je een vraag over Extech 407790A of wil je andere gebruikers van dit product iets vragen? Stel een vraag

Download PDF

Pagina 1/53

User Manual

Real Time Octave Band Analyzer

Model 407790A

Addional User Manual Translaons available at www.extech.com

2 407790A-EN_V2.4 1/20

Table of Contents

TABLE OF CONTENTS .......................................................................................... 2

1. INTRODUCTION ................................................................................................ 3

1.1 Instrument Care ............................................................................................ 4

1.2 Features ........................................................................................................ 5

2. DESCRIPTIONS ................................................................................................ 6

2.1 Meter Description .......................................................................................... 6

2.2 Operation Buttons ......................................................................................... 8

2.3 Display Screen ............................................................................................ 10

2.4 Analysis screen ........................................................................................... 12

2.5 Numeric Display screen .............................................................................. 13

3. MEASUREMENT PREPARATION AND SETUP ............................................ 15

3.1 Setting the Date and Time .......................................................................... 15

3.2 SD Memory Card ........................................................................................ 17

3.3 Setting the Backlight Auto Off time ............................................................. 17

3.4 Sub Channel Settings ................................................................................. 18

3.5 Selecting the Lmax/Lmin type .................................................................... 19

3.6 Comparator Output Operation .................................................................... 20

3.7 Trigger Mode Setup and Operation ............................................................ 23

4. MEASUREMENTS ........................................................................................... 27

4.1 Sound Level Measurements ....................................................................... 27

4.2 SEL, Leq, Lmax, Lmin, LN Measurements ................................................. 28

4.3 Sound Level and Octave Band Analysis Measurement ............................. 30

4.4 Sound Band - Leq, SEL, Lmax, Lmin and LN Analysis Measurement ....... 32

5. STORING DATA TO MEMORY ....................................................................... 34

5.1 Manual Memory Storage ............................................................................ 34

5.2 Recalling Manually Stored Data ................................................................. 37

5.3 Erasing Manually Stored Data .................................................................... 39

5.4 Auto 1 Memory Storage .............................................................................. 40

5.5 Auto 2 Memory Storage .............................................................................. 44

5.6 Erasing Auto Stored Data ........................................................................... 45

6. SOFTWARE DOWNLOAD AND INSTALLATION .......................................... 47

7. SOUND PRESSURE LEVEL - TECHNICAL NOTES ..................................... 48

8. CALIBRATION ................................................................................................. 49

9. SPECIFICATIONS ........................................................................................... 50

10. TWO-YEAR WARRANTY ................................................................................ 53

3 407790A-EN_V2.4 1/20

1. Introducon

Congratulaons on your purchase of the Extech 407790A Real Time Octave Band

Analyzer. This auto ranging Type 2 integrang sound level meter features and 1/1 1/3

Octave Band real-me noise analyses. The 407790A oers ve measurement

parameters: SPL (Sound Pressure Level), Leq (Equivalent Connuous Sound Pressure

Level), SEL (Sound Exposure Level), Lmax (Maximum Sound Pressure Level), and Lmin

(Minimum Sound Pressure Level). The built-in memory stores 12,280 data records in

sound level mode and 1024 records in Octave mode The stored data can be easily .

transferred to a PC with the 407790A soware and B cable This meter permits US .

choice of Flat ‘A’, ‘C’, or ’Z’ weighting and Slow / Fast /impulse response mes AC and .

DC analog output signals are available for chart recorders and other external recording

devices. Careful use of this device will provide years of reliable service.

Product specificaties

Merk:	Extech
Categorie:	Geluidsniveaumeter
Model:	407790A
Soort bediening:	Knoppen
Kleur van het product:	Green,White
Gewicht:	950 g
Breedte:	60 mm
Diepte:	100 mm
Hoogte:	345 mm
Gebruikershandleiding:	Ja
Beeldschermdiagonaal:	0.52 "
Resolutie:	- dB
Connectiviteitstechnologie:	Bedraad en draadloos
Accu/Batterij voltage:	1.5 V
Nauwkeurigheid:	- dB
Ondersteund aantal accu's/batterijen:	4
Frequentiebereik:	25 - 10 Hz
Type beeldscherm:	LCD
Display met achtergrondverlichting:	Ja
Frequentieweging:	A-weighting,C-weighting,Z-weighting
Tijdweging:	Fast,Slow
Meetbereik:	40 - 130 dB