Casella CEL
4
1.
INTRODUCTION
CEL-62X Series is a range of Sound Level Meters designed to meet the demands of
worldwide industrial health and safety professionals as well as general noise
measurement applications. The instrument encompasses functionality from basic sound
level measurement to integrating and real-time octave band analysis.
The CEL-62X instrument is based on the very latest digital signal processing technology
and has a crisp, vibrant colour TFT LCD display. This precision instrument is designed
to bring your noise measurements up to date giving confident and reliable performance
fully compliant with international standards.
Data is stored in a .csv format, compliant with MS Office applications, and through the
USB connection, the .csv files can be copied to a PC without the need for any propriety
software packages.
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2. INSTRUMENT FEATURES
The CEL-62X Sound Level Meter comprises of several variants, where the ‘X’
represents a number which determines the model variant and subsequent features.
Subsequent letters denote the frequency analysis capability, ‘A’ for broadband, ‘B’ for
1/1 octave band and ‘C’ for 1/3 octave, e.g. CEL-620C.
CEL-620
An integrating meter providing A, C, and Z frequency weightings, Fast Slow and Impulse
time weightings with cumulative storage and PC connectivity functions. A single
measurement range of 140dB RMS is standard. Simultaneous L
Aeq
and L
Ceq
values are
measured for use in the HML selection of hearing protection method. L
avg
is available
with a selectable threshold. This model is available in Class 1 or Class 2 accuracy
standards.
CEL-621
Additional parameters are added for the measurement of environmental noise.
Statistical parameters (L
n%
) are available and can be altered to suit specific
environmental legislation.
Frequency Analysis
Models providing ‘Integrating’ functionality combined with addition of 1/1 Octave bands
(B model) or both 1/1 Octave and 1/3 Octave bands (C model) analysis. This instrument
is designed to satisfy the demands of all industrial noise at work applications. Octave
results may be displayed graphically or in numerical form and can be A, C or Z
frequency weighted. Advanced DSP processing provides fast parallel processing of
Octave results from 16Hz to 16kHz, or 1/3 Octave results from 12.5Hz to 20kHz. This
model is available in Class 1 or Class 2.
DESCRIPTION (Refer to Figure 1)
The CEL-62X has a compact, ergonomic and robust ‘rubber grip’ case design that sits
the instrument comfortably in the hand when not mounted on a tripod. The ½”
microphone (under windshield 1) can be removed from the fixed preamplifier (2). The
windshield (1) should be used to cover and protect the microphone at all times.
When the instrument is switched ON (3) it will run through its own software initialisation
and then default to a Stop mode (Red Bar) screen.
Содержание CEL-62 Series
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