- All Products
- Shop by Brands
- BW Technologies
- BW Technologies
- BW Technologies Monitors
- Models
- BW Clip
- BW Clip4
- GasAlertClip Extreme
- GasAlert Extreme
- GasAlertMicroClip XT
- GasAlertMicroClip XL
- GasAlertMicroClip X3
- GasAlertQuattro
- GasAlertMax XT II
- GasAlertMicro 5 Series
- SamplerPak
- IntelliDox Docking System
- MicroDock II
- BW Ultra
- BW Solo
- Gas Monitors
- Gas Monitor Manufacturers
- BW Technologies
- Bacharach
- Biosystems
- Crowcon
- Gas Clip Technologies
- GfG Instruments
- GMI/Detcon
- Honeywell Analytics
- Industrial Scientific
- MSA
- RAE Instruments
- RKI Instruments
- Calibration Gas
- Combustion Analyzers
- Water Quality
- Reliability Instruments
- Refractometers
- HVAC
- Weather
- Temperature
- Laboratory
- Sound
- IAQ
- Electrical
- All Categories
Casella Sound Level Meter Type 2 Kit with Standard Accessories
Item #:
CEL-620-C2-K1
Brand:
Casella
Share this product:
CEL-620-C2-K1 Sound Level Meter Type 2 Kit with Standard Accessories by Casella
Many industrial measurements of complex noises require a complete knowledge of the variable noise level climate over a period of time. The CEL-620.A meter is designed to satisfy this need and to enhance it by providing the capture and display of the highest maximum level and the lowest minimum level together with the integrated time average level. A super wide 120 dB dynamic range means that the user does not need to worry about changing scales as it will always be on the right scale and the provision of all the popular frequency and time weightings allow many different measurements to be taken by new and experienced users alike. The full-color, highprecision, graphic LCD enhances the user experience with this new meter.
Key Benefits
- Wide dynamic range from 20 to 140 dB on single span
- A, C and Z simultaneous frequency weightings
- Slow, Fast and Impulse rms. time responses
- Large 240 x 320 pixel color ¼ VGA graphic display
- Easy to use menu structure
- Integrating capability for time average values
- Available in ANSI/IEC class 1 and class 2 accuracy depending on application
- Available as A version with broad band levels only
- Available as B version with 11 real time octave band filters from 16Hz to 16kHz plus broad band results
- Storage of all results simultaneously in a huge non-volatile memory
- Available as complete measurement kits with acoustic calibrator and case
Applications
For measurements of simple noise levels the instantaneous sound pressure level is often adequate. However, in many real workplace situations the noise levels are variable or changing too quickly to accurately visually estimate the average level over a representative time period. The CEL-620 is designed to assist in the correct interpretation of these difficult noise climates by providing the time average noise level with both the 3 and 5 dB exchange rates. Changing noise levels are properly integrating into the overall time average answer and displayed as the Leq (with Q=3) or the Lavg (with Q=5) exchange rates. This enables the CEL-620 to correctly assess changing noise levels and comparison of the results to the requirements of OSHA or ACGIH or NIOSH. Additional octave band filters in the B version of the CEL-620 provide for a comprehensive frequency analysis of difficult noise levels that is so important for the correct prescription of hearing protectors or other noise control applications.Technical Specification - General | |
Accuracy | ANSI S1.4 & S1.43, IEC 61672-1 2002-5 |
Frequency filters comply with | ANSI S1.11 and IEC 61260 |
Microphone type | Removable ½” Free field Electret microphone Type 1 or Type 2 as specified on fixed preamplifier |
Reference Conditions | 68°F (20°C) air temperature 65% Relative Humidity 1013 mbar (101.325 kPa) atmospheric pressure |
Operating Temperature Range | 14 to 122°F (-10 to 50°C) (Class 1) 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), rel. to value at ref. conditions |
Operating pressure range | 650 to 1080 mbar (65 to 108 kPa) |
Batteries | 3 x AA Alkaline or NiMH rechargeable types |
Battery Life (hours) | Up to 12 hours without backlight |
Dimensions w x h x d (in/mm) | 2.8 x 9.0 x 1.2 in (71.5x 230.0x 31.0mm) including preamplifier and microphone |
Weight including batteries (oz/gm) | 10.1 oz (< 291g) |
Tripod socket for fixed measurements | Yes via standard camera thread (1/4” size) |
Operator controls | buttons for power On/Off and 2 x context sensitive menu selection + 4 navigation and confirm buttons |
Technical Specification – Performance | |
Total measurement range (dB) | 20 to 140 |
Dynamic range on single measurement span (dB) | 120 |
Noise floor (A weighted dB) | < 25 (Class 1) < 30 (Class 2) |
Frequency weightings | A, C & Z (unweighted) |
Time weightings | Slow, Fast and Impulse |
Displayed parameters available as per user selected list or using pre-configured setups | Instantaneous level – Lp, peak level Lpk Maximum level Lmx, Minimum level – Lmn Average levels Leq, LDOD, Lavg, Ltm3, Ltm5 |
Narrow band real time measurements | (B version) 11 octave bands 16 Hz to 16 kHz (C version) 33 third octave bands 12.5 Hz to 20 kHz plus A & C & Z broad band levels |
Display of octave and third octave band levels | Complete range to optimize dynamic span With listing of avg & max band levels in tabular format |
Measurements made in octave (& 1/3) band mode include | Lmx and Leq with selected freq and time weightings |
Reset of max/min/average level from key press by user | Yes – with non-decaying max/min hold |
Display type | 240 x 320 full color dot matrix LCD digital including real-time analog bar graph scale |
Display resolution – numeric (dB) | 0.1 |
Display resolution – graphical (dB) | 1 |
Update rate for display (seconds) | 0.5 |
Displayed time span for time history chart (minutes) | Last 60 seconds |
Calibration method | Automatically recognized by meter |
Signal detected when calibrator placed over microphone at 1 kHz frequency | Calibration level set to 114.0 or 94.0 dB With +/-1 dB span and 0.1 dB resolution by user |
External power option (12 Vdc) | Yes via universal CEL-PC18 unit |
Analog outputs | AC (and optional DC) via 2.5 mm jack socket |
AC output characteristics - (Provided for DAT tape / PC wav file recording or headphone applications) | Approx 0.85V RMS FSD output on selected sound level measurement range. Minimum load impedance 22k. |
DC output characteristics - (Provided at time of order as option for connection to chart recorder or pc data logging system) | 0 to 1.3V DC for FSD on selected range. Output corresponds to selected frequency and time weighting. 2k Output impedance |
Digital output of stored result sets | USB 2.0 format of memory results as .CSV text file via ‘mini B’ USB (meter acts as a USB memory card) |