Noise Criterion Curves - Mitsubishi Electric PUMY-P112VKM1 Service Manual

4-5. NOISE CRITERION CURVES

PUMY-P112VKM1(-BS)
PUMY-P112YKM1(-BS)
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PUMY-P140VKM1(-BS)
PUMY-P140YKM1(-BS)
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OCH576
MODE SPL(dB) LINE
COOLING 49
HEATING 51
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
SPL(dB)
MODE LINE
COOLING 51
HEATING 53
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PUMY-P125VKM1(-BS)
PUMY-P125YKM1(-BS)
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
MICROPHONE
1m
1.5m
21
SPL(dB)
MODE
COOLING 50
HEATING 52
125 250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
UNIT
GROUND
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000