The new CEL-400 series is an advanced and comprehensive instrument family for a wide range of applications. It has been designed for convenience and ease of use in many popular tasks. From simple workplace noise surveys to full community noise audits the new CEL-400 can do it quickly and easily. Advanced digital signal processing technology enable the meters in the range to cover the whole audible sound range in a single span. This eliminates the need to select the best range for a measurement since everything is covered from the quietest quiet to the loudest loud.
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| Casella 430 Product Information |
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| Broadband measured parameters |
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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 |
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ANSI S1.4 (R1997) type 1 and type 2, ANSI S1.43 1997, IEC 61672:2002, IEC 60651 : 1994, IEC 60804 : 2000 |
| Microphone details |
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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 |
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'A', 'C' and 'Z' (linear, un-weighted, all-pass level) simultaneously |
| Frequency response (Hz) |
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6.3 Hz to 30 kHz for -3 dB down points |
| Time weightings (response) |
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Slow and Fast for rms. |
| Peak frequency weighting |
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'A', 'C' or 'Z' separate from rms. weighting |
| Dynamic range for display |
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120 dB |
| Noise floor (dB) |
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16.5 'A' weighted, 19.7 'C' weighted, 23.4 'Z' weighted |
| Maximum noise level (dB) |
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140 dB rms., 143 dB peak |
| Resolution (dB) |
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0.1 dB across whole measurement range |
| DSP sampling rate (Hz) |
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67,200 Hz sampling with true rms. values calculated digitally |
| Memory storage capability |
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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 |
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Manually controlled by user via keypad Start and Stop keys |
| Duration for measurement |
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Variable up to 24 hours maximum per run controlled by user |
| Calibration method |
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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 |
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3 factory defaults plus 2 user configured setups using optional dB30 software |
| Analog outputs |
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AC signal 0.5 V rms. at 98 dB with 22 k Ohms impedance (plus optional log DC output 0 to 2 V for 0 to 140 dB at 14.28 mV/dB) |
| Digital output |
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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 |
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6 individual keys with auto backlight operation on key press |
| Screen languages |
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English, French, German, Italian, Spanish menu selectable |
| LCD screen display |
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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 |
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13.4 x 4 x 1.5 in (340 x 100 x 40 mm) |
| Weight |
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19.3 oz (550 gm) plus batteries |
| Tripod socket |
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Standard camera thread (1/4 inch) |
| Internal power supply |
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4 off AA alkaline cells (15 hours typical maximum battery life) |
| External power supply |
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12 V dc at 150 mA nominal via 2.1 mm power connector |
Instrument models available |
| Broadband model |
| Acoustic calibrator |
| Foam windscreen |
| Kit case for standard accessories |
| Download cable to computer |
| dB30 Windows™ software for pc |
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| ANSI Type 1 accuracy |
ANSI Type 2 accuracy |
| CEL-430.A1 |
CEL-430.A2 |
| CEL-110/1 |
CEL-110/2 |
| CEL-2962 |
CEL-2962 |
| CEL-6672/2 |
CEL-6672/2 |
| C6724 |
C6724 |
| CEL-6830 |
CEL-6830 |
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Measurement Kits available
to complement the meter and accessories |
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Specify a standard noise measurement kit by adding /K1 after meter part number to include relevant acoustic calibrator, foam windscreen, and foam lined carrying case.
Specify a special pc kit with software by adding /K2 after meter part number to include relevant acoustic calibrator, foam windscreen, pc cable, dB30 software and foam lined carrying case.
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