
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 Stru
ture
Z
I
Z84.6
L
dB
16k Hz
dB
4k
1k
2506316
ACZ
AFmx
dB
AF
Aeq
AFmn Zpk
LL
L
L
L
0140
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
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
2/5
More
Options
More
Options
Runs
Runs
Instrument
Version:
A=Broadband
B=Octave
C=Third-octave
Type1or2
Firmware version
Program and version
Instrument ID
XX
XX
XX
v04011
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
L
L
LL
AFmx
LL
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
1min
Periods:
13
Selectable
Between
10 ms and
1min
L
L
LL
AFmx
LCum L
1/2 1/15
-----
More Parameters
More Parameters
Aeq
Zpk
AFmn
CUM
PER
LPeriod
Profile
L
Delay Timer
Timers Off
1/3
Sync Timer
1/2
12hr
Duration
Duration Timer
Ø9JanØ4 11:28
114.ØdBAuto
40
80
120
Menu Structure
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