The CEL-633C series is an easy to use instrument designed to undertake
the measurement requirements of workplace and environmental
noise. It also complies with the latest IEC and ANSI international
standards for sound level meters. Just switch on the instrument,
auto-calibrate and start measuring with one of the predefined
views. Regardless of the view selected, all data is measured and
stored simultaneously so no mistakes can be made.
By implementing the latest digital technology, the meter has a
single measurement range so no range adjustment is required,
ensuring the highest levels of performance with all noise sources.
The CEL-633C can be used for environmental and/or occupational
noise with the availability of frequency analysis and advance
functions such as data markers, timers and logging of time
history data. Even with such advanced functionality, the CEL-633C
Series remains very simple to use.
Audio recording is a standard feature of the CEL-633C, all models
having a voice notes capability. This allows you to speak into the
microphone before or after a measurement in order to annotate
the result, so you don't need to write things down. Data can
also be 'marked' during a measurement to signify either an
anomalous or significant event and audio is also recorded for
later noise source identification. If the instrument is used for
unattended measurements, audio recording can be triggered by
a condition such as a given level being exceeded for a period of
time. In this case additional data will be collected along with the
audio. This can be especially useful where the noise source of
interest is transient.
When the unit is calibrated with the CEL-120 calibrator, the calibration
dates and times are stored and downloaded to Casella insight software,
validating the accuracy of measurements. Average, peak, and octave band measurements are performed at the
same time, so only one measurement needs to be made for all workplace
noise applications. Data can be marked to signify any significant events, the data from
which can be removed afterwards in insight software.