Noise Criterion Curves - Mitsubishi Electric Mr.SLIM PUZ-ZM200YKA Service Manual

5-4. NOISE CRITERION CURVES

PUZ-ZM200YKA.UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OCH738
MICROPHONE
1.5 m
SPL(dB)
MODE LINE
COOLING 59
HEATING
62
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
1 m
PUZ-ZM250YKA.UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
15
UNIT
GROUND
SPL(dB)
MODE
COOLING 59
HEATING
62
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000