Mitsubishi Electric Mr.SLIM PUZ-ZM35VKA-ET Service Manual page 15

5-3. NOISE CRITERION CURVES
PUZ-ZM35VKA(-ET/-ER)
PUZ-ZM50VKA(-ET/-ER)
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
OCH653C
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(-ET/-ER)
PUZ-ZM71VHA(-ET/-ER)
PUZ-ZM71VHAR1(-ET)
90
80
70
60
50
40
30
20
APPROXIMATE
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