Extech 407790A Bruksanvisning

Extech lydnivåmåler 407790A

Les nedenfor 📖 manual på norsk for Extech 407790A (55 sider) i kategorien lydnivåmåler. Denne guiden var nyttig for 11 personer og ble vurdert med 4.7 stjerner i gjennomsnitt av 6 brukere

Last ned PDF

Side 1/55

User Manual

Real Time Octave Band Analyzer

Model 407790A

Additional User Manual Translations 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

Produkspesifikasjoner

Merke:	Extech
Kategori:	lydnivåmåler
Modell:	407790A
Vekt:	950 g
Bredde:	60 mm
Dybde:	100 mm
Høyde:	345 mm
Bruksanvisning:	Ja
Oppløsning:	- dB
Tilkoblingsteknologi:	Ledning & Trådløs
Nøyaktighet:	- dB
Produktfarge:	Green, White
Antall støttede batterier:	4
Skjermtype:	LCD
Skjermdiagonal:	0.52 "
Kontrolltype:	Knapper
Batterispenning:	1.5 V
Skjerm med bakgrunnsbelysning:	Ja
Frekvensrekkevidde:	25 - 10 Hz
Frekvens måling:	A-weighting, C-weighting, Z-weighting
Tids-vekting:	Fast, Slow
Måle område:	40 - 130 dB