Sper-scientific 850013 Advanced Datalogging Sound Meter User Manual download pdf (Page 11)

9. BACKLIGHT

Press to turn the backlight on. Press again to turn the

backlight off. The backlight will turn off automatically

after 30 seconds.

10. A/C

Sets frequency rating to A or C scale.

11. FAST/SLOW

Sets time weighting to Fast or Slow.

12. Microphone

½ inch Electret Condenser microphone

13. CAL potentiometer

Calibration control for level calibration adjustment.

14. PC connection

The PC jack signal output is a 9600 bps N 8 1 serial

interface. Use the accessory RS232/USB interface

cable to connect to the PC.

KEYPAD

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 31 32

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Sper-scientific 850013 Advanced Datalogging Sound Meter User Manual Page 11