Specifications - Radio Shack Sound Level Meter Owner's Manual

33-2050.fm Page 5 Monday, April 17, 2000 2:04 PM
ˆ

Specifications

Range:
Switch Setting Range of Measurement
60 dB
70 dB
80 dB
90 dB
100 dB
110 dB 100–116 dB
120 dB 110–126 dB
Accuracy ............................... ± 2 dB @ 114 dB
Standard ........................... 0 dB = 0.0002 μbar
Weighting ........................................... A and C
Response ................................... Fast and Slow
Signal Output ................................. 1.0V (peak)
minimum into open circuit,
with full-scale meter,
Load Impedance .................10k Ohm minimum
Distortion ............ Less than 2% at 1 kHz, 0.5V
Microphone ........................ Electret condenser
omnidirectional becoming
with increase in frequency
Specifications
50–66 dB
60–76 dB
70–86 dB
80–96 dB
90–106 dB
deflection at 1 kHz
slightly directional
5