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Casella Integrating Sound Level Meter Type 2
Item #:
CEL-430-A2
Brand:
Casella
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CEL-430-A2 Integrating Sound Level Meter Type 2 by Casella
The CEL-430 Integrating sound level meter is a new design that encompasses many of the benefits of the existing CEL-450 and CEL-490 products in a simple and easy to use meter. All DSP technology ensures that the whole of the audio range of noise levels are covered by a single dynamic span. This eliminates the need to change ranges during a measurement and ensures that all the noise is captured faithfully and included in the overall result. All the most popular noise units are simultaneously calculated during the measurement and can be read off the large display or recorded for later download to the optional software package.
Key Benefits
- Single 120 dB dynamic range covers all noise levels
- Simple easy-to-use operation
- Pre-configured setups for the most popular measurements
- Available with ANSI/IEC type 1 and type 2 accuracy
- Automatic recognition of calibrator when applied to microphone
- Large custom LCD with automatic backlight
- Memory for result storage
- Pc software program for archiving and printing results
- Meter can be remotely configured for special measurements from dB30 PC software
- Fixed microphone and preamplifier for simplicity
Applications
- Short term hand held measurements
- workplace noise assessments
- community noise measurements
- noise nuisance monitoring
- vehicle noise certification
- simple survey meter for front line measurements
- noise mapping around machines in the workplace
- product noise testing
- compliance measurements to local noise ordinances
- real time output to personal computer
PC Software
The CEL-430.A meters are available with the optional dB30 dedicated Windows package download and control software. Record the measurements as normal and they will be stored in the meter’s memory for later transfer to the computer for printing. The dB30 software also allows the meter to be reconfigured, labeled and stored to suit new measurement requirements. These user defined setups will be ready to go when the meter is next used. A real time output is available for viewing the noise readings on the computer.
| Broadband measured parameters |
Instantaneous level Lxy, maximum level Lxymx, minimum level Lxymn, peak level Lxpk, average level (Q=3) Lxeq, average level (Q=4) Lavg, average level (Q=5) Lavg, takmaximal levels Ltm3 & Ltm5, exposure level LxE, |
| Acoustic accuracy | ANSI S1.4 (R1997) type 1 and type 2, ANSI S1.43 1997, IEC 61672:2002, IEC 60651 : 1994, IEC 60804 : 2000 |
| Microphone details | CEL-251 ½” precision electret capsule for type 1 models, CEL-253 ½” general purpose electret microphone for type 2 models (preamplifier is fixed with industry standard ½” thread) |
| Broadband frequency weightings | ‘A’, ‘C’ and ‘Z’ (linear, un-weighted, all-pass level) simultaneously |
| Frequency response (Hz) | 6.3 Hz to 30 kHz for -3 dB down points |
| Time weightings (response) | Slow and Fast for rms. |
| Peak frequency weighting | ‘A’, ‘C’ or ‘Z’ separate from rms. weighting |
| Dynamic range for display | 120 dB |
| Noise floor (dB) | 16.5 ‘A’ weighted, 19.7 ‘C’ weighted, 23.4 ‘Z’ weighted |
| Maximum noise level (dB) | 140 dB rms., 143 dB peak |
| Resolution (dB) | 0.1 dB across whole measurement range |
| DSP sampling rate (Hz) | 67,200 Hz sampling with true rms. values calculated digitally |
| Memory storage capability | 100 complete runs each with the overall values of all parameters selected in the setup (maximum of 9 per run plus start date & time) |
| Storage method | Manually controlled by user via keypad Start and Stop keys |
| Duration for measurement | Variable up to 24 hours maximum per run controlled by user |
| Calibration method | Automatic detection of calibrator on microphone for both 1 kHz and 250 Hz frequency operation. Meter set to user pre-entered calibrator dB level, date, time and level of selected calibration is stored in meter |
| Configurations saved in memory | 3 factory defaults plus 2 user configured setups using optional dB30 software |
| Analog outputs | AC signal 0.5 V rms. at 98 dB with 22 kΩ impedance (plus optional log DC output 0 to 2 V for 0 to 140 dB at 14.28 mV/dB) |
| Digital output | Download of stored data to pc or remote control of operations of meter via dB30 software via RS232 port at 19200 baud maximum |
| Keypad control | 6 individual keys with auto backlight operation on key press |
| Screen languages for display | English, French, German, Italian, Spanish menu selectable |
| LCD screen display | 128 x 64 pixel monochrome backlit display with icon indicators can show up to 9 parameters simultaneously on screen using Up/Down scroll keys |
| Size | 13.4 x 4 x 1.5 in (340 x 100 x 40 mm) |
| Weight | 19.3 oz (550 gm) plus batteries |
| Tripod socket | Standard camera thread (1/4 inch) |
| Internal power supply | 4 off AA alkaline cells (15 hours typical maximum battery life) |
| External power supply | 12 V dc at 150 mA nominal via 2.1 mm power connector |
