Mitsubishi Electric PUMY-P112VKM4 Technical & Service Manual page 26

4-6. NOISE CRITERION CURVES
PUMY-P112VKM4(-BS)
PUMY-P112VKM4R1(-BS)
PUMY-P112YKM4(-BS)
PUMY-P112YKM4R1(-BS)
PUMY-P112YKME4(-BS)
PUMY-P112YKME4R1(-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-P140VKM4(-BS)
PUMY-P140VKM4R1(-BS)
PUMY-P140YKM4(-BS)
PUMY-P140YKM4R1(-BS)
PUMY-P140YKME4(-BS)
PUMY-P140YKME4R1(-BS)
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OCH673C
SPL(dB)
MODE 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-P125VKM4(-BS)
PUMY-P125VKM4R1(-BS)
PUMY-P125YKM4(-BS)
PUMY-P125YKM4R1(-BS)
PUMY-P125YKME4(-BS)
PUMY-P125YKME4R1(-BS)
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
MICROPHONE
1 m
1.5 m
26
MODE SPL(dB)
COOLING 50
HEATING
52
250 500 1000 2000 4000 8000
UNIT
GROUND
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20