Sanyo UH2442 / CH2442, XH3642 / CH3642 Specifications Noise Criterion Curves Ceiling Mounted Type

1. Specifications

1-10 Noise Criterion Curves

●Ceiling Mounted Type

MODEL

: TH2442

MODEL

: TH3642

SOUND LEVEL

: HIGH

40 dB(A),

NC 34

SOUND LEVEL

: HIGH

46 dB(A),

NC 39

LOW

36 dB(A),

NC 26

LOW

37 dB(A),

NC 31

CONDITION

: Distance 3.3 ft., Under the unit 3.3 ft.

CONDITION

: Distance 3.3 ft., Under the unit 3.3 ft.

SOURCE

: 208 - 230 V, 1 Phase, 60 Hz

SOURCE

: 208 - 230 V, 1 Phase, 60 Hz

60

60

dB

50

NC-50

dB

50

NC-50

LEVEL,

LEVEL,

PRESSURE

40

NC-40

PRESSURE

40

NC-40

30

30

OCTAVE BAND SOUND

NC-30

OCTAVE BAND SOUND

NC-30

(0 dB = 0.0002 ∝bar)

APPROXIMATE

(0 dB = 0.0002 ∝bar)

APPROXIMATE

20

THRESHOLD OF

NC-20

20

THRESHOLD OF

HEARING FOR

HEARING FOR

NC-20

CONTINUOUS

CONTINUOUS

NOISE

NOISE

10

63

125

250

500

1000

2000

4000

8000

10

63

125

250

500

1000

2000

4000

8000

BAND CENTER FREQUENCIES, Hz				BAND CENTER FREQUENCIES, Hz
			1221_X_I	2113_X_I
MODEL	: TH4242
SOUND LEVEL	: HIGH	47 dB(A),	NC 40
	LOW	38 dB(A),	NC 32
CONDITION	: Distance 3.3 ft., Under the unit 3.3 ft.
SOURCE	: 208 - 230 V, 1 Phase, 60 Hz

	60
dB	50							NC-50
LEVEL,
PRESSURE	40							NC-40
	30
OCTAVE BAND SOUND								NC-30
		APPROXIMATE
	20	THRESHOLD OF
		HEARING FOR						NC-20
	(0 dB0.0002=bar)∝	CONTINUOUS
		NOISE
	10	63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz SM830082

1

2114_X_I I - 91