Mitsubishi Electric PU-P2VGA Technical & Service Manual page 13

3. NOISE CRITERION CURVES
PUH-P1.6VGA / YGA
PU-P1.6VGA
90
80
70
60
50
40
30
APPROTIMATE
20
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PUH-P2.5VGA / YGA
(1)
PU-P2.5VGA
(1)
90
80
70
60
50
40
30
APPROTIMATE
20
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
SPL(dB) LINE
NOTCH
COOLING 46
HEATING 48
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
NOTCH SPL(dB)
(1)
LINE
COOLING
48
HEATING 50
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PUH-P2VGA / YGA
PU-P2VGA
90
80
70
60
50
40
30
APPROTIMATE
20
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
10
63 125
PUH-P3VGA / YGA
PU-P3VGA / YGA
90
80
70
60
50
40
30
APPROTIMATE
20
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
10
63 125
13
SPL(dB)
NOTCH
COOLING 48
HEATING 49
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
SPL(dB)
NOTCH
COOLING 49
HEATING 51
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000