|
|||||||||||||||||
 |
CEL-620 & CEL-621 Family of Integrating Real Time Octave Band Analyzers |
|
CEL-600 with octave band display |
The CEL-620 and CEL-621are a brand new family of quality sound level meters aimed primarily at the industrial hygiene and safety user for the measurement of workplace noise (CEL-620) and community nuisance noise measurements (CEL-621). These new instruments feature the benefits of digital signal processing (DSP) technology to make them powerful yet very easy to use. Various models are available that cover a range of applications and accuracy depending on the individual needs of the user. Single instruments and standard measurement kits are available which include an acoustic calibrator, cables, windscreen, case and optional software. Instruments can be easily upgraded as necessary. All measurement combinations are made simultaneously. Applications
|
Key Benefits
The all new CEL-620 sound level meters feature a large 240 x 320 pixel full color graphic display that helps the user interpret the changing noise climate and measure it correctly. All of the popular noise parameters are measured and stored (model dependant) such as current sound level, maximum, minimum, time average, peak and TWA (with optional threshold). Careful design and use of the modern DSP technology allow for the simultaneous capture of these sound parameters with A, C and Z frequency weightings, Slow, Fast and Impulse time responses over a full 120 dB dynamic range. The CEL-620 models feature data storage for the collection of overall run summary data plus statistical LN% values in the CEL-621 models. When connected to a computer the instrument appears as a mass storage device and can be accessed as if it were a USB thumb drive, This allows the measurement data to be easily transferred to popular spreadsheets or other office documents with out the need for proprietary software.
|
|
Comparison of functions - CEL-620 and CEL-621 Sound level meters
|
CEL-620
|
CEL-621
|
|
| ANSI/IEC accuracy (depending on microphone capsule fitted) | Type 1 with CEL-251 & Type 2 with CEL-252 | Type 1 with CEL-251 & Type 2 with CEL-252 |
| Measurement range (dB) |
20
- 140
|
20
- 140
|
| Frequency Weightings (rms.) |
A,
C & Z
|
A,
C & Z
|
| Time Weightings (rms.) |
Slow,
Fast & Impulse
|
Slow,
Fast & Impulse
|
| Amplitude Weightings (Q) |
3,
4 & 5
|
3,
4 & 5
|
| Large numeric display |
X
|
X
|
| 240 x 320 pixel color graphic LCD |
X
|
X
|
| Measurement Parameters shown on ¼ VGA graphic LCD display |
Lp,
Lmx, Lmn, Lpk, Leq, Ldod, Lavg, LAE, Ltm3, Ltm5
|
Lp,
Lmx, Lmn, Lpk, Leq, Ldod, Lavg, LAE, Ltm3, Ltm5
|
| Additional environmental parameters |
-
|
4
fixed LN% + 1 user LN% values
|
| Current sound level - Lp |
X
|
X
|
| Maximum sound level - Lmx |
X
|
X
|
| Minimum sound level - Lmn |
X
|
X
|
| Peak sound level - Lpk |
X
|
X
|
| Overload and under range icons |
X
|
X
|
| Pause control during run |
X
|
X
|
| Time average sound level – Leq |
Leq with Q=3
|
Leq with Q=3
|
| Time average sound level - LDOD |
LDOD
with Q=4
|
LDOD with Q=4
|
| Time average sound level -Lavg |
Lavg
with Q=5
|
Lavg with Q=5
|
| Taktmaximal average Ltm3 & 5 |
X
|
X
|
| Memory for run summary |
X
|
X
|
| Memory size 2 GBytes |
X
|
X
|
| Frequency
analysis - A, C & Z + 11 octave bands 16Hz – 16kHz 33 1/3 oct. bands 12.5Hz – 20 kHz |
A
version
B version C version |
A
version
B version C version |
| Oct. or 1/3 oct maximum Lmx |
X
|
X
|
| Oct or 1/3 oct band average Leq |
X
|
V
|
| Maximum number of octave or third octave band runs stored |
100
|
100
|
Ordering information
| Integrating
sound level meter CEL-62X.A CEL-62X.A/K1 |
Integrating sound level meter with wrist strap and windscreen Integrating sound meter kit with acoustic calibrator and carrying case |
| Integrating
octave band analyzer CEL-62X.B CEL-62X.B/K1 |
Integrating octave band analyzer with wrist strap and windscreen Octave band analyzer kit with acoustic calibrator and carrying case |
| Integrating
1/3 oct. band analyzer CEL-62X.C CEL-62X.C/K1 |
Integrating 1/3
oct. band analyzer with wrist strap and windscreen |
Technical Specifications - General
| Acoustic accuracy: | ANSI S1.4 & S1.43 Type 2 or Type 1, IEC 61672-1 2002-5 Depending on microphone capsule fitted to meter |
| Octave filters comply with: | ANSI S1.11 1986 Order 3 type 0C, EN61260: 1996 Class 0 |
| Reference Conditions: | 68°F
(20°C) air temperature, 65% Relative Humidity, 1013 mbar (101.325 kPa) atmospheric pressure. |
| Operating Temperature Range: | 32 to 104°F (0 to 40°C) (Class 2) |
| Effect of Humidity: | Less than ±0.5dB over the range 30 to 90% RH (non-condensing), relative to value at ref. conditions |
| Operating pressure range: | 650 to 1080 mbar (65 to 108 kPa |
| Noise floor (A weighted dB): | <25 dB for type 1, <33 dB for type 2 |
| Broadband frequency response (-3dB points): | 6 Hz to 20 kHz |
| Sampling frequency for DSP calculations (Hz): | 67,200 |
| Batteries: | 3 x AA Alkaline or rechargeable types Battery Life: (hours) Up to 20 hours with backlight |
| Dimensions w x h x d: (in/mm) | 2.8 x 9.0 x 1.2 in (71.5x 229.0x 31.0mm) including fixed preamplifier and microphone |
| Weight including batteries: (oz/gm) | 10.4 oz (< 290g) |
| Tripod socket for fixed measurements | Yes via standard camera thread (1/4” size) |
| Operator controls: | menu selection, + 4 navigation and confirm buttons |
Return to top
Return
to SMG/interlink®
For more information Email 
SMG/Interlink®
Interlink Marketing Corporation
dba SMG/interlink®
PO Box 260795
Plano, Texas 75026
Toll free 1-800-804-6196
Ph: 972-985-0883
Fx: 972-985-3252
2203 Glen Forest Ln
Plano, Texas 75023
Copyright © 1997-2012 Interlink Marketing Corporation
Home | Anemometers | Borescopes | Calibration gases | Gas detectors | Heat stress monitors | IAQ monitors | IR cameras | Light/UV meters | Manometers | Moisture meters | Noise dosimeters | pH meters | Pitot tubes| Radiation meters | Sampling pumps | Sound meters | Thermometers | Other resources
