407790 Datasheet, PDF (4/18 Pages) Extech Instruments Corporation. – Real Time Octave Band Analyzer

Meter Description
Refer to the diagram below for the following descriptions.
1. Windscreen
9. AC analog output jack
2. Microphone
10. LCD contrast adjust knob
3. Display
11. LCD backlight on/off switch
4. Operation keys
12. Hand strap
5. Power switch
13. RS-232 interface connector
6. Calibration adjust knob
14. Battery compartment
7. 6VDC adapter jack
15. Tripod mounting screw
8. DC analog output jack
FAST LA
100
dB
80
W
65.2 dB
60
40
20
Hz 31.5 125 500 2k
8k L W
[ 1 / 3 OCT ] 01 / 06 / 19 14:26:39
SOUND ANALYZER
1/1 & 1/3 OCTAVE BAND
IEC 651 IEC 804 TYPE 2
IEC 1260 CLASS2
ACCURACY : ¡ 1Ó.5dB
IEC LR14 1.5V X 4
4
Model 407790 Ver. 2.1 9/07