CASELLA USA
CEL-240 DIGITAL SOUND LEVEL METER
FREQUENTLY ASKED QUESTIONS
Casella USA
Page 2 of 6
(800) 366-2966
31 Jan 2008
Jenny Pearson,
FAQ’s: INTRODUCTION
How does the instrument fit into the CEL range?
CEL-200 Series
The simplest meters in the CEL range remain the CEL-200 series including the
existing CEL-231 and 254 models and now the new
CEL-240
. These 3 models are
ANSI type 2 accuracy sound level meters with Sound Pressure Level (SPL),
Maximum Noise Level (Max) and Impulse response (not CEL-231) measurement
capabilities.
CEL-300 Series
The intermediate range of convertible personal noise dosimeters or logging
sound level meters is in the form of the CEL-320 or CEL-360. Simply swap out
the microphone inputs to convert the dosimeter into the sound level meter or vice
versa. Both models feature ANSI type 2 accuracy for overall measurements. The
new CEL-350 dBadge dosimeter adds a small badge style dosimeter with cable-
less microphone to the range for added convenience.
CEL-400 Series
The mid range sound level meters are the CEL-430, 450 and 490 providing
recording of level against time or level against frequency. The 450 and 490
instruments are fitted with parallel (real time) frequency analysis capability in
either full octave or third octave bands. ANSI type 1 and type 2 / data logging or
non-data logging models are available for the CEL-400 sound level meter range.
CEL-500 Series
The top of the range meters are the CEL-553, 573 and 593 real time analyzers which
feature parallel capture of level against time and frequency. A range of versatile upgrade
options for such specific tasks as Rapid Data Storage, Building Acoustics, Sound
Quality and Long Term Logging measurements are also available. All models meet the
ANSI type 1 models are available.
