Noise Criterion Curves - Mitsubishi PUHZ-SP100VHA Service Manual

5-3. NOISE CRITERION CURVES

MICROPHONE
1m
1.5m
PUHZ-SP125VHA.UK
PUHZ-SP125YHA.UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OCH566A
UNIT
GROUND
SPL(dB)
MODE LINE
COOLING 51
HEATING 55
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PUHZ-SP100VHA.UK
PUHZ-SP100YHA.UK
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PUHZ-SP140VHA.UK
PUHZ-SP140YHA.UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
10
MODE SPL(dB) LINE
COOLING 50
HEATING 54
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
MODE SPL(dB) LINE
COOLING 52
HEATING 56
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000