Noise Criterion Curves - Mitsubishi Electric Mr.SLIM SLZ-KA25VA Technical & Service Manual

NOISE CRITERION CURVES

SLZ-KA25VAL.TH
SLZ-KA25VA.TH
SLZ-KA25VAL .TH
1
SLZ-KA25VA .TH
1
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
SLZ-KA50VAL.TH
SLZ-KA50VA.TH
SLZ-KA50VAL .TH
1
SLZ-KA50VA .TH
1
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
NOTE: The sound level is measured in an anechoic room where echoes are few, when compressor stops. The sound
may be bigger than the indicated level in actual use due to surrounding echoes. The sound level can be high-
er by about 2 dB than the indicated level during cooling and heating operation.
<50Hz>
NOTCH SPL(dB) LINE
High 37
Medium 31
Low
28
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
<50Hz>
SPL(dB) LINE
NOTCH
High 39
Medium 34
Low
30
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
SLZ-KA35VAL.TH
SLZ-KA35VA.TH
SLZ-KA35VAL
SLZ-KA35VA
1
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
CEILING
7
NOTCH SPL(dB)
High
Medium
.TH
1
Low
.TH
250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
1.5m
MICROPHONE
<50Hz>
LINE
38
33
29
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000
UNIT