14
© 01-2022 | Barcol-Air B.V. | T +31 (0)299 689 300 | www.barcol-air.nl | www.cera-systeem.nl | Changes w/o notice or obligation.
CERA-2 | type NXOJOOB
Performance data
TYPE CERA-2
1. Sound data is determined in a reverberation
room at an independent sound laboratory,
according to ISO 3741 en ISO 5135
standards.
2. Lw/Oct. (re. 1pW) are sound power levels
for discharge and radiated sound. Values
< 17 dB are indicated by “-“.
3. The values for insertion loss L
w
do not
include end reflection.
4. dB(A), NC and NR index values are sound
pressure levels. Sound pressure levels
< 20 are indicated by “--“.
5. The sound pressure levels for discharge
sound include the values for an acoustic
hose in accordance with table 1.
6. Lp values are including a room absorption
of 10 dB/Oct.
7.
∆
p
s
is the static pressure loss in the CERA
ss
unit with the damper fully open.
8. Where an “X” is shown in the table,
the unit’s own resistance is > 100 Pa,
which means sound levels at 100 Pa
are not available.
9. For non standard applications and/or
selections please contact our technical staff .
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
m/s
l/s
CFM
m³/h
Pa
2
23
50
84
10
63 57 52 41 29 26 23
‐
‐
57 49 43 35 29 18
‐
‐
‐
29 19
‐
‐
‐
‐
‐
‐
‐
4
47
99
168
29
66 60 55 46 35 31 26
‐
‐
63 55 48 42 36 27 22
‐
‐
32 27 22 21
‐
‐
‐
‐
‐
6
70
149
253
56
68 61 56 49 39 34 28 20 22 67 58 51 46 40 32 26
‐
21 34 32 27 24 19
‐
‐
‐
‐
8
94
198
337
88
69 62 57 50 42 36 29 22 24 70 61 53 49 43 36 29 22 24 35 35 30 27 22 17 22
‐
‐
10
117
248
421
125
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2
39
82
139
5
62 59 51 43 36 34 23
‐
‐
49 45 43 35 27 17
‐
‐
‐
27 24
‐
‐
‐
17
‐
‐
‐
4
77
164
279
18
66 63 56 50 43 39 28
‐
21 58 54 50 44 37 29 20
‐
‐
32 31 26 22 17 20
‐
‐
‐
6
116
246
418
41
69 65 58 53 47 43 30 22 24 64 59 55 49 43 36 26
‐
‐
34 36 31 26 22 22 23
‐
‐
8
155
328
558
74
71 66 60 56 50 45 32 24 26 68 63 58 53 47 41 29 20 23 36 40 35 29 25 24 27
‐
‐
10
194
410
697
116
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2
61
129
219
6
62 55 50 43 39 32 22
‐
‐
52 45 40 34 30 22
‐
‐
‐
27 20
‐
‐
‐
‐
‐
‐
‐
4
122
258
439
22
67 61 54 49 45 39 27
‐
21 56 51 45 39 34 27
‐
‐
‐
32 30 24 21 19 19
‐
‐
‐
6
183
388
658
50
70 65 57 52 48 42 31 22 24 59 54 48 42 37 30
‐
‐
‐
34 36 29 24 22 21 22
‐
‐
8
244
517
878
89
72 67 59 54 50 45 33 25 27 61 56 50 45 39 32 22
‐
‐
36 39 33 27 24 22 25
‐
‐
10
305
646
1097
139
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Lw in dB/Oct. (re 1pW)
Lw in dB/Oct. (re 1pW)
Lw in dB/Oct. (re 1pW)
Model
Data referring to inlet
‐
spigot
min.
Δ
Ps
Discharge sound (supply)
Discharge sound (return)
Radiated sound
Ve
lo
cit
y
Air Volume
Lp values
Lp values
Lp values
dB
(A
)
NC
NR
dB
(A
)
NC
NR
dB
(A
)
NC
NR
dB
dB
dB
125
200
160
Sound data (pressure drop ∆ 100 Pa)
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
m/s
l/s
CFM
m³/h
Pa
2
23
50
84
10
65 60 57 45 33 31 26
‐
20 57 51 46 40 35 23
‐
‐
‐
30 20
‐
18
‐
‐
‐
‐
‐
4
47
99
168
29
70 64 60 50 40 36 30 22 24 66 58 52 46 41 31 25
‐
‐
35 29 24 24 19
‐
‐
‐
‐
6
70
149
253
56
73 66 61 53 44 39 33 26 28 71 62 55 50 44 36 29 23 25 37 34 29 27 23 19 22
‐
‐
8
94
198
337
88
75 68 63 56 46 42 35 29 30 74 65 57 52 47 40 33 27 29 39 37 33 30 25 22 25
‐
‐
10
117
248
421
125 77 69 64 57 48 43 36 31 32 77 67 59 54 49 42 35 31 32 41 40 36 32 28 23 28
‐
‐
2
39
82
139
5
64 63 56 47 40 39 27
‐
20 51 47 45 39 34 25
‐
‐
‐
30 25 20 18
‐
18
‐
‐
‐
4
77
164
279
18
70 66 60 53 47 44 32 23 25 61 56 52 47 42 34 23
‐
‐
35 32 28 24 21 22 21
‐
‐
6
116
246
418
41
74 69 62 57 51 47 34 27 28 66 62 57 52 46 40 28
‐
21 37 37 33 28 24 24 25
‐
‐
8
155
328
558
74
76 70 64 59 53 49 37 30 31 70 65 60 55 49 44 32 23 25 39 40 37 31 27 26 28
‐
‐
10
194
410
697
116 78 71 65 61 55 50 38 32 33 73 68 63 57 52 47 34 26 28 40 43 39 33 29 28 30
‐
‐
2
61
129
219
6
65 60 54 47 44 39 26
‐
20 52 46 43 38 35 28
‐
‐
‐
30 22 18 18
‐
18
‐
‐
‐
4
122
258
439
22
70 66 59 52 49 44 31 23 25 58 53 49 44 39 33
‐
‐
‐
34 31 26 23 22 22 20
‐
‐
6
183
388
658
50
74 69 61 56 52 47 34 27 28 62 57 52 47 42 35 23
‐
‐
37 37 31 26 25 24 24
‐
‐
8
244
517
878
89
76 71 63 58 54 49 37 30 31 65 60 54 49 43 37 26
‐
‐
38 40 35 29 27 26 27
‐
‐
10
305
646
1097
139 78 73 64 59 56 51 38 32 33 67 62 56 50 45 39 28
‐
20 39 43 37 30 29 27 29
‐
‐
160
Lp values
dB
(A
)
NC
NR
dB
(A
)
NC
NR
dB
(A
)
NC
NR
dB
dB
dB
200
125
Model
Data referring to inlet
‐
spigot
min.
Δ
Ps
Discharge sound (supply)
Discharge sound (return)
Radiated sound
Ve
lo
cit
y
Air Volume
Lw in dB/Oct. (re 1pW)
Lp values
Lw in dB/Oct. (re 1pW)
Lp values
Lw in dB/Oct. (re 1pW)
Sound data (pressure drop ∆ 150 Pa)
Additional sound absorption of Sonodec acoustic hose (1 meter)
Hz
125
250
500
1000
2000 4000
dB
17
22
22
27
19
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