Noise Criterion Curves - Mitsubishi Electric PUZ-ZM35VKA Service Manual

5-3. NOISE CRITERION CURVES

PUZ-ZM35VKA
PUZ-ZM50VKA
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
MICROPHONE
1 m
1.5 m
OCH653
SPL(dB)
MODE LINE
COOLING 44
HEATING 46
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
UNIT
GROUND
15
PUZ-ZM60VHA
PUZ-ZM71VHA
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
SPL(dB)
MODE LINE
COOLING 47
HEATING 49
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000