VOLTCRAFT SL-300 - Power Button; USB Interface

12
 Frequency weighting select button
AA-Weighting
CC-Weighting
 HOLD button:
Press “HOLD” button, The hold function freezes
the reading in the display.
Power button
Turn the meter power ON/OFF
 External DC 9V power supply terminal
For connection with DC 9V power supply.
Aperture size: external diameter: 3.5mm,
internal diameter: 1.35mm
USB interface
USB
signal output is a 9600 bps serial
interface.
 AC/DC signal output earphone outlet
OUTPUT
GROUND
OUTPUT
AC
DC
ACOutput voltage1Vrms corresponding to
each range step.
Output impedance 100Ω