Cel 490 – Casella CEL CEL-490 User Manual
Page 2
Dose Results
Freq. (Hz)
Periodic
Periodic
Functions
Functions
SLM Response
SLM Response
1/4
1/4
Time Weight
F
Peak Weight
Z
Exchange Q
3
RMS Weight
A
1/4
Broadband
CEL-490 Broadband only
Narrowband
CEL-450 & CEL-490 REAL-TIME SOUND LEVEL METERS Menu Structure
Z
I
Z
84.6
L
dB
16k Hz
dB
4k
1k
250
63
16
A
C
Z
AFmx
dB
AF
Aeq
AFmn
Zpk
L
L
L
L
L
0
140
dB
Broadband
Measure
Calibrate
Obtain Menu
Narrowband
L
ZF
Calibration
Timers
Memory
Configure
Status
2/7
Measure Mode
Setup
8Ø - 19ØØ28A - NN
Preamp
CEL49Ø.C1 vNN.NN
I/O
ID:
Type 1
None
NNNNNN
2Mb
13JanØ4 1Ø:54:42
1%
2
Format
Memory
Full
Runs
512Kb
13JanØ4 1Ø:54:42
1%
2
Memory
Full
Runs
Setup
Press MENU
User Setup 1
Key to Start
Language
Backlight
RS232 Comms
RS232
Comms
Graph Range
Time & Date
Microphone
AC Output
1/7
Delete Current
Delete All
View Current
View All
1/4
Tue
Thu
Wed 7 Jan2ØØ4
9 Jan2ØØ4
13 Jan2ØØ4
15 Jan2ØØ4
Fri
Tue
Thu
Wed 7 Jan2ØØ4
9 Jan2ØØ4
13 Jan2ØØ4
15 Jan2ØØ4
Fri
1
3
Third Octave
Broadband
Octave
2/3
User Setup
2
User Setup
3
User Setup
4
Factory Setup
User Setup
1
User
Setup
1
2/5
More
Options
More
Options
Runs
Runs
Instrument
Version:
A=Broadband
B=Octave
C=Third-octave
Type 1 or 2
Firmware version
Program and version
Instrument ID
XX
XX
XX
v04006
7Ø
8 Hours
EP,d
L
WA
T
&
Threshold
1/2
Profile
- - - - -
Max Run Time
45 Days 11:26:ØØ
Period
1min
1/4
CASELLA CEL Ltd, 2004
Cel 490
Profile
Parameters
CEL-490
Broadband
Models only
Dose
Parameters
CEL-490
Broadband
Models only
LL
LL
AFmx
L
1/15
More Parameters
Aeq
Zpk
AFmn
LL
Cumulative:
10 Narrow-
band
15
Broadband
Parameters
Period:
9 Narrow-
band
15
Broadband
Parameters
Periods:
13
Selectable
Between
10 ms and
1 min
Periods:
13
Selectable
Between
10 ms and
1 min
LL
LL
AFmx
L
Cum
L
1/2
1/15
- - - - -
More Parameters
More Parameters
Aeq
Zpk
AFmn
CUM
PER
L
Period
Profile
L
Delay Timer
Timers Off
1/3
Sync Timer
1/2
12hr
Duration
Duration Timer
Ø9JanØ4 11:28
114.ØdB
Auto
40
80
120
Before or during a narrowband run, use
and
to
obtain levels from the individual frequency bands of the
displayed parameter.
Press
to start a run and store results.
If a clock is shown, a timed measurement has been set,
refer to Section 3.1 of the Handbook.
Once a run has started,
can be used to activate
Quick Edit. Now
and
select the other measured
parameters. In addition, if the measurement range is
selected,
and
can be used to change the span
and offset, and if the frequency range is selected, the
frequency range can be limited.
Remember to reset the 140 dB range after use.
Press
then use the navigator keys to review the
data screens. Only data stored during the current run
can be reviewed while more data is being collected.
When sufficient data has been inspected, press
to
return to the measurement screen.
When the run is to be stopped, press
and see the
following options:
Stop run (and store data),
Restart run (abandon current run and start a
new run),
Continue run (continue interrupted run).
Select an option and confirm it by pressing
.
Indicated Parameters
F:
Fast
S:
Slow
1:
Impulse
pk:
Peak
mx:
Maximum
mn:
Minimum
eq:
Equivalent Level
av:
Average
FIELD GUIDE to CEL-450/490
Sound Level Meters
v04003
Class 2, 1/4"
Microphone
&
Preamplifier
Pull the
knurled
sleeve
outwards to
release the
connector
ON/OFF
Navigator
keys
Start/
Pause/
Restart
Access
data
Change
menu
Enable
Quick edit/
Select
Back light
Stop
(needs
to confirm)
Protective
grill (
)
Class 1, 1/2"
Microphone
Preamplifier
Red dot
do not
remove
V04014
Z
I
Z
73.6
L
dB
16k
4k
1k
250
63
16
40
80
120
A
C
Z
www.casellagroup.com
Think environment Think Casella
FIELD GUIDE to CEL-450/490
Sound Level Meters
v04003
Class 2, 1/4"
Microphone
&
Preamplifier
Pull the
knurled
sleeve
outwards to
release the
connector
ON/OFF
Navigator
keys
Start/
Pause/
Restart
Access
data
Change
menu
Enable
Quick edit/
Select
Back light
Stop
(needs
to confirm)
Protective
grill (
)
Class 1, 1/2"
Microphone
Preamplifier
Red dot
do not
remove
www.casellagroup.com
Think environment Think Casella
Fold Line
Fold Line
CEL-450/490 SLM
HB3308.01 April 04
CEL-450/490 SLM
HB3308.01 April 04
Tm3: Taktmaximal 3 sek
Tm5: Taktmaximal 5 sek
EP,d: 8 hr Exposure
EP,v: Projected Exposure
N:
Noise Percentile
AE:
Sound Exposure
TWA: 8 hr Time Wtd Av
TWAv:Projected TWA
HML: Calculated as L
+AG
/ L
)AG
Casella CEL
Regent House, Wolseley Road,
Kempston, Bedford,
MK42 7JY, United Kingdom.
Phone:
+44 (0) 1234 844 100
Fax:
+44 (0) 1234 841 490
E-mail:
Web:
www.casellacel.com
Casella USA
17 Old Nashua Road #15
Amherst, NH 03031, U.S.A
Toll Free: +1 800 366 2966
Fax:
+1 603 672 8053
E-mail:
Web:
www.casellausa.com
The CEL-450 and CEL-490 Sound Level Meters consist
of the instrument unit preamplifier and microphone
shown.
Dose Results
Freq. (Hz)
Periodic
Periodic
Functions
Functions
SLM Response
SLM Response
1/4
1/4
Time Weight
F
Peak Weight
Z
Exchange Q
3
RMS Weight
A
1/4
Broadband
CEL-490 Broadband only
Narrowband
CEL-450 & CEL-490 REAL-TIME SOUND LEVEL METERS Menu Structure
Z
I
Z
84.6
L
dB
16k Hz
dB
4k
1k
250
63
16
A
C
Z
AFmx
dB
AF
Aeq
AFmn
Zpk
L
L
L
L
L
0
140
dB
Broadband
Measure
Calibrate
Obtain Menu
Narrowband
L
ZF
Calibration
Timers
Memory
Configure
Status
2/7
Measure Mode
Setup
8Ø - 19ØØ28A - NN
Preamp
CEL49Ø.C1 vNN.NN
I/O
ID:
Type 1
None
NNNNNN
2Mb
13JanØ4 1Ø:54:42
1%
2
Format
Memory
Full
Runs
512Kb
13JanØ4 1Ø:54:42
1%
2
Memory
Full
Runs
Setup
Press MENU
User Setup 1
Key to Start
Language
Backlight
RS232 Comms
RS232
Comms
Graph Range
Time & Date
Microphone
AC Output
1/7
Delete Current
Delete All
View Current
View All
1/4
Tue
Thu
Wed 7 Jan2ØØ4
9 Jan2ØØ4
13 Jan2ØØ4
15 Jan2ØØ4
Fri
Tue
Thu
Wed 7 Jan2ØØ4
9 Jan2ØØ4
13 Jan2ØØ4
15 Jan2ØØ4
Fri
1
3
Third Octave
Broadband
Octave
2/3
User Setup
2
User Setup
3
User Setup
4
Factory Setup
User Setup
1
User
Setup
1
2/5
More
Options
More
Options
Runs
Runs
Instrument
Version:
A=Broadband
B=Octave
C=Third-octave
Type 1 or 2
Firmware version
Program and version
Instrument ID
XX
XX
XX
v04006
7Ø
8 Hours
EP,d
L
WA
T
&
Threshold
1/2
Profile
- - - - -
Max Run Time
45 Days 11:26:ØØ
Period
1min
1/4
CASELLA CEL Ltd, 2004
Cel 490
Profile
Parameters
CEL-490
Broadband
Models only
Dose
Parameters
CEL-490
Broadband
Models only
LL
LL
AFmx
L
1/15
More Parameters
Aeq
Zpk
AFmn
LL
Cumulative:
10 Narrow-
band
15
Broadband
Parameters
Period:
9 Narrow-
band
15
Broadband
Parameters
Periods:
13
Selectable
Between
10 ms and
1 min
Periods:
13
Selectable
Between
10 ms and
1 min
LL
LL
AFmx
L
Cum
L
1/2
1/15
- - - - -
More Parameters
More Parameters
Aeq
Zpk
AFmn
CUM
PER
L
Period
Profile
L
Delay Timer
Timers Off
1/3
Sync Timer
1/2
12hr
Duration
Duration Timer
Ø9JanØ4 11:28
114.ØdB
Auto
40
80
120
Before or during a narrowband run, use
and
to
obtain levels from the individual frequency bands of the
displayed parameter.
Press
to start a run and store results.
If a clock is shown, a timed measurement has been set,
refer to Section 3.1 of the Handbook.
Once a run has started,
can be used to activate
Quick Edit. Now
and
select the other measured
parameters. In addition, if the measurement range is
selected,
and
can be used to change the span
and offset, and if the frequency range is selected, the
frequency range can be limited.
Remember to reset the 140 dB range after use.
Press
then use the navigator keys to review the
data screens. Only data stored during the current run
can be reviewed while more data is being collected.
When sufficient data has been inspected, press
to
return to the measurement screen.
When the run is to be stopped, press
and see the
following options:
Stop run (and store data),
Restart run (abandon current run and start a
new run),
Continue run (continue interrupted run).
Select an option and confirm it by pressing
.
V04014
Z
I
Z
73.6
L
dB
16k
4k
1k
250
63
16
40
80
120
A
C
Z
Indicated Parameters
F:
Fast
S:
Slow
1:
Impulse
pk:
Peak
mx:
Maximum
mn:
Minimum
eq:
Equivalent Level
av:
Average
Tm3: Taktmaximal 3 sek
Tm5: Taktmaximal 5 sek
EP,d: 8 hr Exposure
EP,v: Proj. Exposure
N:
Noise Percentile
AE:
Sound Exposure
TWA: 8 hr Time Wtd Av
TWAv: Proj. TWA.
HML: Calculated as L
+AG
/ L
)AG
Casella CEL
Regent House, Wolseley Road,
Kempston, Bedford,
MK42 7JY, United Kingdom.
Phone:
+44 (0) 1234 844 100
Fax:
+44 (0) 1234 841 490
E-mail:
Web:
www.casellcel.com
Casella USA
17 Old Nashua Road #15
Amherst, NH 03031, U.S.A
Toll Free: +1 800 366 2966
Fax:
+1 603 672 8053
E-mail:
Web:
www.casellaUSA.com
The CEL-450 and CEL-490 Sound Level Meters consist
of the instrument unit preamplifier and microphone
shown.