Data - Mitsubishi Electric PUHZ-W50VHA Service Manual

3

DATA

3-1. NOISE CRITERION CURVES
MICROPHONE
1m
1.5m
PUHZ-W85VHA(-BS)
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 LINE
COOLING 48
HEATING 48
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PUHZ-W50VHA(-BS)
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
PUHZ-HW112YHA(-BS)
PUHZ-HW140VHA(-BS)
PUHZ-HW140YHA(-BS)
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
9
SPL(dB)
MODE
COOLING 45
HEATING 46
250 500 1000 2000 4000
SPL(dB)
MODE
COOLING 53
HEATING
53
250 500 1000 2000 4000
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