Extech Instruments 407780A - Meter Description; Controls and Ports Identification; LCD Display Elements

407780A‐EU‐ENv1.34/14
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MeterDescription

1. 1/2‐inchmicrophone
2. LCDdisplay
3. Powerbutton
4. Leq/SEL/SPLselectbutton
5. RUN/Pausebutton
6. UP/DOWNrangesettingbuttons.
7. A/CFrequencyweightingselectswitch
8. FAST/SLOW/IMPULSEtimeweighting
selectswitch.
FAST:125ms,SLOW:1
second,
IMPULSE:35mswithslowdecay
9. MAXbutton
10. RECORD/ERASEbutton
11. Realtimeclockbutton
12. Integrationtimebutton
13. Alarmoutput
14. AC/DCoutput
15. CAL(calibration)adjustment
16. Externalpowerinput
 USBinput(locatedonbottom,not
shown)
 Tripodmountingscrew(located
onrear,notshown)
 Batterycover(locatedonrear,notshown)

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