© PCE Instruments
20
Eng
li
s
h
3.2
Interfaces
Connector for mains adaptor (12)
Voltage: 9 V DC
Jack: outer Ø: 3.5 mm; inner Ø: 1.35 mm
USB interface (13)
Data rate: 9600 bps
Analogue output (14)
OUTPUT
GROUND
OUTPUT
AC
DC
AC:
output voltage: 1 V RMS (corresponding to maximum value of the selected measuring
range)
Resistance: 100
Ω
DC:
output voltage: 10 mV/dB
Resistance: 1 k
Ω
Potentiometer (15)
The potentiometer is used for calibrating the sound level meter in combination with a sound
calibrator.