t-NEXT DF DX
T_tNEXTDFDX_0719_EN
27
MEHITS S.p.A.
DATA BOOK
ACOUSTIC DATA
Acoustic data of the standard machine at full load working conditions.
WARNING:
In a closed room the noise produced by a sound source reaches the listener in two different ways:
•
Directly
•
Reflected from the surrounding walls, floor, ceiling, from furniture.
With the same sound source, the noise produced in a closed room is greater than that produced
outdoors. In fact, the sound pressure level generated by the source, must be added to the one reflected
from the room. Also, the shape of the room affects the sound.
MODEL
011 P1 S
014 P1 S
016 P1 S
020 P1 S
022 P1 S
026 P1 S
SIZE
E1
E2
E2
E3
E3
E3
SOUND LEVEL ISO 3744 (1)
On air delivery, Under
dB(A)
64,7
70,8
71,9
70,3
71,8
72,8
On air intake, Under
dB(A)
55,9
56,9
58,1
57,0
58,9
59,2
On front side, Under
dB(A)
47
48
49
48
50
50
On air delivery, Over
dB(A)
64,7
70,8
71,9
70,3
71,8
72,8
On air intake, Over (2)
dB(A)
52
54
55
55
59
57
On front side, Over (3)
dB(A)
41,8
47,1
48,1
46,7
48,7
49,0
MODEL
032 P1 S
037 P1 S
041 P1 S
045 P1 S
039 P2 D
048 P2 D
SIZE
E4
E4
E4
E4
E5
E5
SOUND LEVEL ISO 3744 (1)
On air delivery, Under
dB(A)
78,1
81,1
78,9
78,9
81,3
81,5
On air intake, Under
dB(A)
64,2
67,1
66,4
66,4
67,3
69,0
On front side, Under
dB(A)
55
58
57
57
58
60
On air delivery, Over
dB(A)
78,1
81,1
78,9
78,9
81,3
81,5
On air intake, Over (2)
dB(A)
61
63
62
62
63
64
On front side, Over (3)
dB(A)
54,3
57,3
56,8
56,8
57,6
59,4
MODEL
055 P2 D
062 P2 D
075 P2 D
082 P2 D
092 P2 D
102 P2 D
SIZE
E6
E6
E7
E7
E8
E8
SOUND LEVEL ISO 3744 (1)
On air delivery, Under
dB(A)
77,9
78,7
80,1
80,1
82,5
82,5
On air intake, Under
dB(A)
64,1
65,0
67,8
67,8
70,1
70,1
On front side, Under
dB(A)
55
56
58
58
61
61
On air delivery, Over
dB(A)
77,9
78,7
80,1
80,1
82,5
82,5
On air intake, Over (2)
dB(A)
61
62
64
64
66
67
On front side, Over (3)
dB(A)
54,1
55,0
58,1
58,1
60,4
60,4
MODEL
117 P4 D
146 P4 D
SIZE
E9
E9
SOUND LEVEL ISO 3744 (1)
On air delivery, Under
dB(A)
83,4
83,4
On air intake, Under
dB(A)
70,9
70,9
On front side, Under
dB(A)
62
62
On air delivery, Over
dB(A)
--
--
On air intake, Over (2)
dB(A)
--
--
On front side, Over (3)
dB(A)
--
--
1.
Noise pressure level at 1 meter in free field
–
ISO 3744
2.
Air intake from the front
3.
Air intake from the bottom
