ST-109R
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7
5.10
94dB Calibrate
Input 94dB@1KHZ signal.
Last calibration records are displayed at the lower
right corner of LCD.
Current measurement value is displayed at the
lower left corner of LCD.
Time weight value is Fast by default.
Calibration range: 91dB~97dB.
Press
button to the selection frequency
weight.
Press
button to select shift.
Press
button to select full calibration.
Press
button to select next setup mode.
Press
button to save calibration value and exit
set-up mode.
5.11
Microphone Connection Inter-face
Pin 1: signal input
Pin 2: ground
Pin 3: power supply
Pin 4: X
Summary of Contents for ST-109R
Page 1: ...ST 109R Integrating Sound Level Meter User s Manual HB2ST109R001 ...
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