BSWA 308/309 BSWA Technology Co., Ltd
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4.4.14 About
About menu shows the Type, Class, S/N (serial number), Ver.,
and HWID (hardware ID) of sound level meter.
4.5 Language
Sound level meter support 6 language: English, Chinese,
Portuguese, Spanish, German and French. Press <▲>, <▼>
can select appropriate language and press <Enter> to save
the setting.
4.6 Output
Menu of Output can select which measurement data should
be output at DC OUT. There are Level Meter DC Out and
Octave DC Out option for level meter mode and 1/1 octave
mode. The Printer option also be include in this menu. Press
<▲>, <▼> can choose and select.
4.6.1 AC OUT
There are two analog output ports on sound level meter: DC OUT and AC OUT. Please use
coaxial cable to connect DC OUT, AC OUT to other device or system. Recommend input
resistance of terminal device or system should above 5kΩ.
AC OUT port is located on the bottom of sound level meter. It output the signal of microphone
directly without and setting can be apply. The maximum output voltage is 5Vrms (±7Vpeak),
and maximum output current is ±15mA.
★Note: Please add impedance transformation circuit when input resistance of terminal
device or system is not so high enough. AC OUT is only can be used for noise recording or
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