10 © 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.
1. Sound data is determined in a reverberation
room at an independent sound laboratory,
according to ISO 3741 en ISO 5135
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
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
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 5 63 53 48 44 33 25 21 ‐‐57 49 43 35 29 18 ‐‐‐29 19 ‐‐‐‐‐‐‐
4 47 99 168 20 65 57 51 49 40 31 25 ‐‐63 55 48 42 36 27 22 ‐‐32 27 22 21 ‐‐‐‐‐
6 70 149 253 42 67 59 53 51 44 35 27 ‐20 67 58 51 46 40 32 26 ‐21 34 32 27 24 19 ‐‐‐‐
8 94 198 337 71 68 60 55 53 47 38 28 ‐22 70 61 53 49 43 36 29 22 24 35 35 30 27 22 17 22 ‐‐
10 117 248 421 108 X X X X X X X XXXXXXXXXXXXXXXXXXXX
2 39 82 139 2 62 49 45 39 30 20 ‐‐‐49 45 43 35 27 17 ‐‐‐27
4 77 164 279 8 68 57 53 49 40 32 26 ‐22 58 54 50 44 37 29 20 ‐‐33 27 24 22
6 116 246 418 18 71 62 58 54 46 39 30 24 26 64 59 55 49 43 36 26 ‐‐36 34 31 27 21 19 23
8 155 328 558 30 74 65 61 58 50 44 33 27 28 68 63 58 53 47 41 29 20 23 38 39 36 31 25 23 27
10 194 410 697 46 76 68 63 61 53 47 36 29 31 71 66 60 56 50 45 32 24 27 40 43 39 34 28 25 30
2 61 129 219 1 54 48 44 39 31 21 ‐‐‐52 45 40 34 30 22 ‐‐‐21
4 122 258 439 4 61 56 53 49 41 33 23 ‐‐56 51 45 39 34 27 ‐‐‐27 26 22 21
6 183 388 658 9 66 61 58 54 48 40 28 ‐22 59 54 48 42 37 30 ‐‐‐30 32 30 27 21 19 22
8 244 517 878 16 69 65 62 58 52 45 32 24 26 61 56 50 45 39 32 22 ‐‐33 37 35 31 25 22 26
10 305 646 1097 25 71 67 64 62 55 48 35 27 30 62 58 52 46 40 33 23 ‐‐34 41 39 34 28 25 30
dB(A)
NC
NR
125
160
Model
Data referring to inlet‐spigot
min.
ΔPs
Discharge sound (supply) Discharge sound (return)
200
Velocity
Air Volume
Lw in dB/Oct. (re 1pW) Lp values
dB(A)
NC
NR
dB dB dB
Lw in dB/Oct. (re 1pW) Lp values Lw in dB/Oct. (re 1pW) Lp values
dB(A)
NC
NR
TYPE CERA-1
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 5 64 56 51 47 38 31 24 ‐‐57 51 46 40 35 23 ‐‐‐30 20 ‐18 ‐‐‐‐‐
4 47 99 168 20 69 61 56 53 45 37 29 22 23 66 58 52 46 41 31 25 ‐‐35 29 24 24 19 ‐‐‐‐
6 70 149 253 42 72 64 58 56 49 41 32 25 27 71 62 55 50 44 36 29 23 25 37 34 29 27 23 19 22 ‐‐
8 94 198 337 71 74 66 60 59 52 44 34 28 29 74 65 57 52 47 40 33 27 29 39 37 33 30 25 22 25 ‐‐
10 117 248 421 108 76 68 61 61 54 46 36 30 31 77 67 59 54 49 42 35 31 32 41 40 36 32 28 23 28 ‐‐
2 39 82 139 2 63 52 48 42 35 26 22 ‐‐51 47 45 39 34 25 ‐‐‐29
4 77 164 279 8 70 60 56 51 44 36 29 22 24 61 56 52 47 42 34 23 ‐‐34 27 25 23 19
6 116 246 418 18 73 65 60 56 50 43 33 26 28 66 62 57 52 46 40 28 ‐21 37 34 31 28 24 21 24
8 155 328 558 30 76 68 64 60 54 47 36 30 31 70 65 60 55 49 44 32 23 25 39 39 36 32 28 25 28
10 194 410 697 46 78 71 66 63 57 50 38 32 33 73 68 63 57 52 47 34 26 28 40 42 40 35 30 28 31
2 61 129 219 1 57 52 46 41 36 27 ‐‐‐52 46 43 38 35 28 ‐‐‐23
4 122 258 439 4 64 59 55 51 46 37 26 ‐‐58 53 49 44 39 33 ‐‐‐29 26 23 22 19
6 183 388 658 9 68 64 60 56 51 43 31 23 25 62 57 52 47 42 35 23 ‐‐32 32 30 27 24 21 23
8 244 517 878 16 72 67 64 60 55 48 35 27 29 65 60 54 49 43 37 26 ‐‐34 36 35 31 28 24 27
10 305 646 1097 25 74 69 66 63 58 51 37 30 32 67 62 56 50 45 39 28 ‐20 36 40 39 34 31 27 30
Lw in dB/Oct. (re 1pW) Lp values
NR
dB(A)
NC
NR
125
Model
Data referring to inlet‐spigot
min.
ΔPs
Discharge sound (supply) Discharge sound (return)
Velocity
Air Volume
Lw in dB/Oct. (re 1pW) Lp values Lw in dB/Oct. (re 1pW) Lp values
dB(A)
NC
160
200
dB(A)
NC
NR
dB dB dB
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 14
is the static pressure loss in the CERA
sis the static pressure loss in the CERA
s
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
9. For non standard applications and/or
selections please contact our technical staff .
CERA-1 | type NXOJOOB
Performance data
