BSWA 308 - Microphone Connector

BSWA 308/309 BSWA Technology Co., Ltd
20
<Start/Stop>:
Start or stop the measurement.
<▲>:
Up arrow used to select the menu item or adjust the parameters.
<▼>:
Down arrow used to select the menu item or adjust the parameters.
<◄>:
Left arrow used to select the menu item, or adjust the parameters, or switch measure
screens.
<►>:
Right arrow used to select the menu item, or adjust the parameters, or switch measure
screens.
<Menu/Pause>:
Press to enter the main menu list. Pause when running a measurement.
2.2 Microphone Connector
The TNC connector on the top of the sound level meter is used to connect to microphone and
preamplifier (microphone and preamplifier are usually mounted together). The TNC is
threaded coaxial connector.
BSWA 308 is equipped with Class 1 microphone, while BSWA 309 is equipped with Class 2:
MPA231T:
1/2” pre-polarized measurement microphone, class 1. Sensitivity: 40mV/Pa. Frequency
range: 3Hz~20kHz. Mounted with ICCP preamplifier and powered by 4mA/24V.
MPA309T:
1/2” pre-polarized measurement microphone, class 2. Sensitivity: 40mV/Pa. Frequency
range: 20Hz~12.5kHz. Mounted with ICCP preamplifier and powered by 4mA/24V.