Mitsubishi Electric PUHZ-P100VHA2 Service Manual page 9

6-3. NOISE CRITERION CURVES
MICROPHONE
1m
1.5m
PUHZ-P125VHA2.UK
PUHZ-P125VHA2
1
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
UNIT
GROUND
SPL(dB)
MODE
COOLING 51
.UK
HEATING 55
500 1000 2000 4000
PUHZ-P100VHA2.UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
PUHZ-P140VHA2.UK
LINE
PUHZ-P140VHA2
90
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
10
8000 63
9
MODE
COOLING
HEATING
125 250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
MODE
COOLING
.UK
1
HEATING
125 250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
SPL(dB)
LINE
50
54
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000
SPL(dB) LINE
52
56
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000