Steren HER-400 Manual De Instrucciones página 17

8. Levels
Allows you to select the measurement range. You can select between 30-80,
40-90, 50-10, 60-110, 70-120 and 80-130 units.
9. Illumination
Press this button once in order to illuminate the screen's backlight.
10. Calibration
Use this control in order to make adjustments to the decibel-meter. In order to
make these adjustments, refers to a Steren authorized technician.
11. AC Adaptor
Allows you to connect a 9V power adaptor to the device (adaptor not included
with the device).
12. DC Output
10 mV/dB DC, 100 ohms impedance.
13. AC Output
0.707~ at complete range for each channel, 600 ohms impedance.
RMS
14.- Infrared port
If you want to save and consult your measurements, use this port to connect the
HER-400 to your computer.
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