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Casella IS Logging Sound Meter Type 2 with Cable and dB12 Software

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Casella IS Logging Sound Meter Type 2 with Cable and dB12 Software


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Casella IS Logging Sound Meter Type 2 with Cable and dB12 Software

Casella IS Logging Sound Meter Type 2 with Cable and dB12 Software



CEL-360SIS IS Logging Sound Meter Type 2 with Cable and dB12 Software by Casella

Instruments in the innovative CEL-300 IS series offer the capability to make noise measurements in potentially hazardous environments. The series consist of the CEL-320IS & CEL-360IS dosimeters and the companion CEL-320SIS & CEL-360SIS sound level meters.

Key Benefits

  • Intrinsically Safe to EEx ia IIC T4 for use in Zones 0, 1 & 2
  • Certificate Number 05ATEX2027X
  • Available as Personal Dosimeter (NDM) and Sound Level Meter (SLM)
  • 2 SLM models - CEL-320SIS and CEL-360SIS
  • 2 Dosimeter models - CEL-320IS and CEL-360IS
  • Easily convertible between SLM and Noise Dosimeter models by microphone exchange
  • ANSI and IEC Type 2 accuracy compliance
  • Measurement of %dose, Proj%, TWA, LAeq, Lavg, LAE, Lmax, Lmin, Lpeak, 5 x LN%
  • CEL-360IS and CEL-360SIS have 220,000 point data-logging option
  • Delay start and stop timers up to 1 month in advance for 360IS and 360SIS models

Convertibility as standard

Sound level meter versions can easily be converted to personal noise dosimeters, simply by unplugging the CEL-425IS SLM Microphone (supplied) and replacing it with a CEL-6681IS Dosimeter Microphone.

In the same way instruments originally supplied as personal noise dosimeters with the CEL-6681IS cable microphone can be converted to hand held sound level meters by a simple replacement with the CEL-425IS stalk microphone assembly.

Features remain the same in both model configurations irrespective of the design of microphone actually fitted to the instrument to ensure ultimate flexibility in use. These instruments are lightweight, rugged, and easy to use.

Noise Dosimeter Option

The CEL-320IS and CEL-360IS are pre-programmed with the required settings to measure noise dose in accordance with the relevant National and International Noise Exposure regulations. The US OSHA setup is the default measurement method used by the instruments when first taken out of the box.

All models also include the requirements to comply with DOD and ISO based measurement protocols if required. Up to 3 additional setups may be added to the dosimeters where local regulations require that specifically.

The CEL-360IS has the additional benefit of storing up to 10 time history profiles during the measurements.

Sound Level Meter Option

One of the default operating modes is a Sound Level Meter configuration storing the last used set of sound level time-, frequency- and amplitude- (or “Q” exchange rate) weightings, peak level frequency weighting, and the last selected measurement range.

Simply selecting this mode and starting the “Run” simultaneously measures and displays the instantaneous level, and gives the duration of the run, the maximum level, Leq, Lavg with the selected 4, 5 or 6 dB exchange rate and peak channel level. Any of these values can be displayed without interrupting the measurement. A pause function allows measurements to be stopped temporarily to prevent unrelated extraneous noise affecting results.

Output options

At the end of the measurement sequence the meters can store the overall results from up to 50 separate measurements that can be recalled to the custom LCD display.

In addition, if the logging function was employed in the CEL-360IS or 360SIS models then up to 220,000 time history profiles may be saved to give a better appreciation of the variation in the noise levels during the run.

All models can be connected directly to standard office printers for a pre-formatted hard copy as well as to PCs running CEL dB10 or dB12 dosimeter software for further data processing, presentation and data archiving.

Intrinsic Safety standards Rated Intrinsically Safe for hazardous area EEx ia IIC T4 II 1 G to EN500020, Certificate Number 05ATEX2027X.
Dosimeter standards ANSI S1.25: 1992
IEC1252: 1993 BS EN 61252.
Sound level meter standards IEC-651: 1979 (EN 60651) Type 2I, IEC-804: 1985 (EN 60804) Type 2, ANSI S1.4 – 1983 Type S (2).
Electro-magnetic standards EN 50081-1:1992, EN 50081-2: 1993, EN 50082-1:1992, EN 50082-2: 1995.

Measurement ranges
Display range Primary RMS range at 1 kHz Peak
30 – 100 dB 41 – 86 dB 63 – 103 dB
50 – 120 dB 55- 106 dB 83 – 123 dB
70 – 140 dB 75 – 125 dB Defined from 10 dB above noise floor to a crest factor limit of 5 103 – 143 dB

Maximum number of measurement runs
Number of pre-configured Set-Ups
Number of user configurable Set-Ups using CEL software
Threshold levels (dB) 70 to 90 dB in 1 dB steps
Criterion level (dB)
80 to 90 dB in 1 dB steps
Number of Ln% values
5 values user settable from 0.1% to 99.9%

Dosimeter microphone* CEL-6681IS ¼” electret microphone with clip, on 32in (0.8 m) plug-in cable.
Sound level meter microphone* CEL-425IS ¼” electret microphone on 3in (75 mm) stalk.
Windscreen for microphone protection Both microphones may be used with CEL-6225 Windshield that has no measurable effect on acoustic performance between 31.5 Hz - 8 kHz.
Frequency weightings A, C, linear 20 Hz – 20 kHz.
Time weightings Fast, Slow, Impulse, Peak.
Amplitude weightings (Q) 3, 4, 5, 6 dB exchange rates.
Displayed information Lp, LAeq, LAE, LeqI, Lav, Lmx, Lmn, Lpeak, 5 x Ln%, %DOSE1, projected %DOSE1, TWA1, %DOSE2, projected %DOSE2, TWA2, LEP,d, Duration, Date, Time, Run
#, Wait, Pause, Battery state.
Battery* Duracell MN 1604 (9 V), Approximately 40 hours lifetime.
Physical (excluding microphone) (120 x 65 x 30 mm, 300 g),
4.8 x 2.6 x 1.2 in, 11 oz.

Extra features in CEL-360IS and 360SIS only
Profile memory size >220,000 data points
Profiles per period 10 from Leq, Max, Peak, Ln%
Profile intervals 1, 2, 5, 10, 15, 20, 30 s 1, 2, 5, 10, 15, 20, 30 & 60 m
Fixed duration timers 5, 10, 15, 30 m 1, 2, 4, 8h
Delay start and stop timers
With 16 pairs settable to the nearest minute
Up to 31 d 23 h 59 m
in advance
Variable time for daily noise exposure level TWAv (hh:mm) 1 min to 23 hr 59min in 1 min intervals

Questions & Answers