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Extech Instruments 407727 User Manual

Extech Instruments 407727
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Analog Output
A 3.5mm phono output jack is provided on the meter for connection to external test equipment. An AC rms
voltage is provided (0.707V maximum) which is a linearized representation of the analog pointer reading.
Connect this output to a datalogger, chart recorder, etc. for datalogging purposes.
Data Recording
To begin recording the MIN and MAX sound level readings, press the RECORD key (REC will appear on
the LCD). To recall the stored minimum reading, press the RECORD key again (MIN will appear on the
LCD along with the recorded measurement data). To view the stored maximum reading, press RECORD
again. To resume normal meter operation, press RECORD key a final time. NOTE: The bargraph displays
continues to work while in the Data Recording mode.
Auto Power Off
The meter automatically shuts down after 20 minutes of non-use to preserve battery life. To override this
feature, press the ON/OFF and MAX HOLD keys simultaneously from a power off condition. When the
display appears release only the MAX HOLD key (a lower case ‘n’ will appear on the LCD). Now Release
the ON/OFF key. Note: The Auto Power Off feature will be re-activated the next time the meter is manually
powered down.

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Extech Instruments 407727 Specifications

General IconGeneral
BrandExtech Instruments
Model407727
CategoryMeasuring Instruments
LanguageEnglish

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