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TSI Casella CEL-246 Sound Level Meter

Occupational Safety and Environmental Measuring Instruments

TSI Casella CEL-246 Class 2 sound level meter

Professional Sound Level Meter with IEC 61672-1 Class 2 Compliance, Leq/Lavg, and Data Logging

The CEL-246 is a compact Class 2 sound level meter developed for general workplace noise measurements, walk-through field surveys, product noise, and alarm checks. In addition to instantaneous and maximum sound pressure levels, it measures Leq or Lavg average values; with a graphical time history and internal data logging, it facilitates the assessment of fluctuating noise.

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Product Specifications

  • IEC 61672-1 Class 2: compliance with IEC 61672-1:2002 Class 2, IEC 60651 Type 2, and ANSI S1.4 Type 2A is specified in manufacturer technical documentation; integrating average functions are further covered under IEC 60804 Type 2 and ANSI S1.43 Type 2.

  • Leq / Lavg average measurement: Energy equivalent Leq (Q=3) can be selected for European-based applications, and Lavg (Q=5) for US-based applications.

  • 30–130 dB measurement: Selectable 30–100 dB and 60–130 dB ranges; A and C frequency weightings with Fast, Slow, and Impulse time weightings.

  • Time history and logging: The CEL-246 logs up to 419,000 data points with a selectable 1–10 second logging interval; 100 separate runs can be stored, and CSV data can be downloaded to a PC.

  • Field calibration: Automatically senses the 1 kHz, 94 or 114 dB signal of a CEL-120/1 or Class 2 CEL-120/2 acoustic calibrator. The manufacturer recommends acoustic calibration verification before and after measurement.

  • Practical field use: high-resolution graphic display, two softkeys, approx. 35 hours battery life, USB connectivity, and a compact 245 g body.

    • Product Documents
    TSI Casella CEL-246 carry case, CEL-120 calibrator, and accessory kit
    CEL-246 field kit; sound level meter, acoustic calibrator, and carry case layout.
    TSI Casella CEL-120 acoustic calibrator 94 and 114 dB
    CEL-120 acoustic calibrator; for pre- and post-measurement field checks with 1 kHz reference.
    You can visit the original website
    Technical Specifications

    Technical Specifications

    Technical Table 1
    StandardsIEC 61672-1:2002 Class 2; IEC 60651:1979 Type 2; ANSI S1.4 Type 2A; for CEL-246 IEC 60804:2000 Type 2 and ANSI S1.43:1997 (R2007) Type 2
    Measurement Range30–130 dB(A) RMS; selectable 30–100 dB and 60–130 dB ranges
    Noise FloorTypically <33 dB(A)
    Frequency WeightingsA and C
    Time WeightingsFast, Slow, and Impulse
    Average MeasurementLeq (Q=3) or Lavg (Q=5)
    Logging IntervalCEL-246: selectable 1–10 second average value
    Memory419,000 data points; 100 runs; maximum 65,515 data points per run
    File Format.CSV; compatible with spreadsheet applications
    Calibration1 kHz @ 94 or 114 dB auto-calibration sensing; CEL-120/1 or CEL-120/2
    Display128 × 128 monochrome graphic LCD; 0.5 s update
    ConnectivityUSB 2.0 Mini-B; auxiliary 2.5 mm stereo socket
    Battery / Operating Time3 × AA alkaline or NiMH; typical / greater than 35 hours
    Operating Conditions0–40 °C; 5–90% RH non-condensing; 65–108 kPa
    Dimensions / Weight72 × 212 × 31 mm / 245 g (including batteries)
    Technical Table 2
    Class 2 Instrument StandardIEC 61672-1:2002 Class 2; also IEC 60651 Type 2 and ANSI S1.4 Type 2A. The average/integrating functions of the CEL-246 are covered under IEC 60804 Type 2 and ANSI S1.43 Type 2.
    Workplace Noise MeasurementThe CEL-246 can be used for LAeq-based measurements in workplace area surveys, determining noise levels around tasks or sources, and general occupational hygiene noise assessments. When determining personal daily exposure, a shoulder-worn personal dosimeter may be required depending on the measurement strategy.
    Leq and Peak MethodologyThe CEL-246 measures Leq/Lavg, instantaneous, and maximum levels. It features A and C frequency weightings. Because Z weighting is not specified in the instrument's technical documentation, no Z or LCpeak measurement capability is claimed on this page.
    Field CalibrationThe manufacturer recommends acoustic calibration before and after measurement using a CEL-120/2 or CEL-120/1. The instrument automatically senses the calibrator signal at 94 or 114 dB at 1 kHz.
    Raw Data and TraceabilityThe CEL-246 can store 419,000 data points and 100 runs in internal memory. With a selectable logging interval of 1–10 seconds, time-history data can be exported to a PC in CSV format.
    Implementation in TurkeyIn occupational hygiene measurements, instrument class alone is not sufficient; measurement strategy, valid calibration of the instrument, pre/post-field verification, measurement positioning, and reporting must be implemented together in accordance with applicable legislation, TS EN ISO 9612, and authorised laboratory procedures.

    Measurement and Standards Approach

    The CEL-246 is a professional measurement instrument meeting the requirements of an IEC 61672-1:2002 Class 2 sound level meter. IEC 61672-1 defines the electroacoustic performance class of the instrument; TS EN ISO 9612 is the measurement strategy and calculation method for determining workers' noise exposure. Therefore, rather than an "ISO 9612 certified instrument", an application-appropriate Class 2 measuring instrument and correct field methodology should be evaluated together.

    Sectors

    Occupational Health, Occupational Hygiene and Environment
    Commercial and Industrial Facilities
    Machinery, Automotive, and Manufacturing
    Fire Alarm and Acoustic Verifications
    Construction and Civil Engineering
    Universities and R&D

    Alternative Products

    You can compare other noise measurement solutions based on measurement class, level of analysis, and personal exposure requirements.

    TSI Casella CEL-630 sound level meterTSI Casella CEL-630 SeriesProfessional sound level meter platform for more advanced environmental and workplace noise measurements.VIEW → TSI Quest SoundPro SE-DL sound level meter and noise analyserTSI Quest SoundProSound analysis and measurement platform for applications requiring octave bands and advanced analysis.VIEW → TSI Casella dBadge2 personal noise dosimeterTSI Casella dBadge2Shoulder-worn professional dosimeter for personal shift exposure measurements within the scope of TS EN ISO 9612.VIEW →

    Frequently Asked Questions About TSI Casella CEL-246

    Which sound level meter standard does the CEL-246 meet?
    According to manufacturer documentation, it complies with IEC 61672-1:2002 Class 2, IEC 60651 Type 2, and ANSI S1.4 Type 2A. The integrating average function of the CEL-246 is also covered under IEC 60804 Type 2 and ANSI S1.43 Type 2.
    Can the CEL-246 measure Leq and log data?
    Yes. The CEL-246 measures Leq or Lavg average values. It features a selectable 1–10 second logging interval, 419,000 data points, and 100-run memory; data can be exported to a PC as CSV.
    Can the CEL-246 be used for workplace noise measurements?
    Yes, it is a Class 2 sound level meter for general workplace and area noise measurements. However, when determining personal daily exposure within the scope of TS EN ISO 9612, a personal noise dosimeter may be required depending on the chosen strategy.

    Notice: Technical specifications have been prepared based on manufacturer documentation. Model, firmware, certifications, and specifications may vary depending on product revision. For current product and certification verification prior to purchase, NOVEL please contact.

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