Instrukcja obsługi Extech 407790A

Extech miernik poziomu dźwięku 407790A

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Extech 407790A (53 stron) w kategorii miernik poziomu dźwięku. Ta instrukcja była pomocna dla 4 osób i została oceniona przez 2 użytkowników na średnio 4.5 gwiazdek

Pobierz PDF

Strona 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.

Specyfikacje produktu

Marka:	Extech
Kategoria:	miernik poziomu dźwięku
Model:	407790A
Kolor produktu:	Green, White
Typ kontroli:	Przyciski
Typ wyświetlacza:	LCD
Wysokość produktu:	345 mm
Szerokość produktu:	60 mm
Głębokość produktu:	100 mm
Waga produktu:	950 g
Podręcznik użytkownika:	Tak
Technologia łączności:	Przewodowy i Bezprzewodowy
Długość przekątnej ekranu:	0.52 "
Liczba baterii:	4
Dokładność:	- dB
Zasięg częstotliwości:	25 - 10 Hz
Podświetlenie wyświetlacza:	Tak
Skala:	40 - 130 dB
Napięcie baterii:	1.5 V
Ważenie częstotliwościowe:	A-weighting, C-weighting, Z-weighting
Czas ważenia:	Fast, Slow
Rozkład:	- dB