Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 88

Sound pressure level (dB) (0dB = 0.0002 bar) Sound pressure level (dB) (0dB = 0.0002 bar) 1-8. Noise Criterion Curves Ceiling (Type T2) MODEL : S-26PT2U6 SOUND LEVEL : High 39 dB(A) CONDITION Low 31 dB(A) : 3.3 ft. from front of outlet at height of 3.3 ft. SOURCE : 208-230V, 1 Phase, 60Hz 90 80 70 NC-70 60 NC-60 50 1 40 NC-50 NC-40 30 NC-30 20 Approximate minimum audible limit for NC-20 10 continuous noise Overall 63 125 250 500 1000 2000 4000 8000 Frequency at center of sound pressure band (Hz) Sound pressure level (dB) (0dB = 0.0002 bar) MODEL : S-42PT2U6 SOUND LEVEL : High 46 dB(A) CONDITION Low 36 dB(A) : 3.3 ft. from front of outlet at height of 3.3 ft. SOURCE 90 : 208-230V, 1 Phase, 60Hz 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 20 Approximate minimum audible limit for NC-20 10 continuous noise Overall 63 125 250 500 1000 2000 4000 8000 Frequency at center of sound pressure band (Hz) 1. Specifications MODEL : S-36PT2U6 High Low SOUND LEVEL : High 42 dB(A) CONDITION Low 35 dB(A) : 3.3 ft. from front of outlet at height of 3.3 ft. SOURCE 90 : 208-230V, 1 Phase, 60Hz 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 20 Approximate minimum audible limit for NC-20 continuous noise 10 Overall 63 125 250 500 1000 2000 4000 8000 Frequency at center of sound pressure band (Hz) 1-80