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計測機器 Major tech MT975のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Major tech MT975 16 ページ。 Sound level meter

Turn the meter power ON/OFF

⑿ External DC 9V power supply terminal

1 x DC 9V power supply.

Aperture size:

external diameter: 3.5mm

internal diameter: 1.35mm

⒀ USB interface

USB signal output is a 9600 bps serial interface.

⒁ AC/DC signal output earphone outlet

AC: Output voltage: 1Vrms equivalent to each range

step.

Output impedance: 100Ω

DC: Output voltage: 10mV/dB

Output impedance: 1kΩ

⒂ Calibration potentiometer（CALL）

Select the (CALL) function for external standard level

calibration adjustments

OUTPUT

GROUND