12
OCH727
4
DATA
NOISE CRITERION CURVES
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
90
80
70
60
50
40
30
20
10
OCT
AVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
µbar)
63
125
250
500
1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
COOLING
MODE
HEATING
49
SPL(dB)
47
LINE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
90
80
70
60
50
40
30
20
10
OCT
AVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
µbar)
63
125
250
500
1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
COOLING
MODE
HEATING
45
SPL(dB)
45
LINE
1.5 m
1 m
MICROPHONE
UNIT
GROUND
PUZ-WM112VAA.UK PUZ-WM112VAA-BS.UK
PUZ-WM112YAA.UK PUZ-WM112YAA-BS.UK
PUZ-WM50VHA.UK
PUZ-WM50VHA-BS.UK
PUZ-WM60VAA.UK PUZ-WM60VAA-BS.UK
PUZ-WM85VAA.UK PUZ-WM85VAA-BS.UK
PUZ-WM85YAA.UK PUZ-WM85YAA-BS.UK
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
90
80
70
60
50
40
30
20
10
OCT
AVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
63
125
250
500
1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
COOLING
MODE
HEATING
52
SPL(dB)
52
LINE
