Puhz-Rp1.6Vha; Puhz-Rp2Vha; Noise Criterion Curves - Mitsubishi Electric Mr.SLIM PUHZ-RP1.6VHA Technical & Service Manual

6-3. NOISE CRITERION CURVES

MICROPHONE
1.5m

PUHZ-RP1.6VHA

PUHZ-RP2VHA

90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PUHZ-RP4VHA, VHA
PUHZ-RP4YHA
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
1m
SPL(dB)
MODE LINE
COOLING 44
HEATING
46
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
SPL(dB)
MODE LINE
1
COOLING 49
HEATING 51
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
UNIT
GROUND
PUHZ-RP2.5VHA, VHA
PUHZ-RP3VHA, VHA
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
PUHZ-RP5VHA, VHA
PUHZ-RP6VHA, VHA
PUHZ-RP5YHA
PUHZ-RP6YHA
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
13
MODE SPL(dB)
1
COOLING
1
HEATING
125 250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
MODE SPL(dB)
1
COOLING
1
HEATING
125 250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
LINE
47
48
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000
LINE
50
52
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000