Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 82
Noise Criterion Curves, Way Cassette Type U1, MODEL, S-26PU1U6, SOUND LEVEL, NC 31, NC 23, CONDITION
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1-8. Noise Criterion Curves 4-Way Cassette (Type U1) MODEL : S-26PU1U6 SOUND LEVEL : HIGH 38 dB(A), NC 31 LOW 31 dB(A), NC 23 CONDITION : 4.9 ft. directly below unit SOURCE 60 : 208 - 230 V, 1 Phase, 60 Hz 1. Specifications MODEL : S-36PU1U6 SOUND LEVEL : HIGH 44 dB(A), NC 37 LOW 33 dB(A), NC 25 CONDITION : 4.9 ft. directly below unit SOURCE : 208 - 230 V, 1 Phase, 60 Hz 60 OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar) 50 NC-50 40 NC-40 1 30 NC-30 APPROXIMATE THRESHOLD OF 20 HEARING FOR CONTINUOUS NOISE NC-20 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz 2108_X_I MODEL : S-42PU1U6 SOUND LEVEL : HIGH 45 dB(A), NC 38 LOW 34 dB(A), NC 27 CONDITION : 4.9 ft. directly below unit SOURCE : 208 - 230 V, 1 Phase, 60 Hz 60 OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar) 50 NC-50 40 NC-40 30 NC-30 APPROXIMATE THRESHOLD OF 20 HEARING FOR CONTINUOUS NOISE NC-20 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz 2109_X_I OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar) 50 NC-50 40 NC-40 30 NC-30 APPROXIMATE THRESHOLD OF 20 HEARING FOR CONTINUOUS NOISE NC-20 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz 2110_X_I 1-74