Casella CEL CEL-593 - Manual

Getting Started With
CEL-553, CEL-573 & CEL-593
Sound Level Analysers
“Series 3”
“Series 3” of the CEL-500 analysers
introduces a new instrument: the CEL-553
which is available ONLY as a real-time
third-octave sound level meter, with user
initiated storage of screen data.
Instruments in Series 3 can measure
noise levels, calculate the commonly
required time averaged parameters and
save the results.
The standard memory is capable of
storing about 200 000 data points, which is
equivalent to 6 000 data screens while the
optional extended memory can store
approximately 1 000 000 data points,
equivalent to 30 000 data screens.
Depending on model they can also
analyse and store noise data in broadband
and octave bands.
With the exception of the CEL-553
which has only SLM mode, the standard
versions of these instruments can be
operated in three different ways
(measurement modes) as follows.
¤ Real time sound level meter with user
initiated storage of screen data.
¤ Event sound level meter with manual,
remote or threshold triggering
(CEL-593 only).
¤ Environmental sound level meter with
user selected sampling periods
(CEL-573 and CEL-593).
The measurement parameters available on
standard versions vary from model to
model and from mode to mode as shown
in Table 1 on page 73.
To simplify measurement procedures,
pre-programmed setups are stored by the
instrument. There is a separate directory
for each application, mode and bandwidth,
each of which contains one initial setup
provided by the factory, and up to six more
defined by the user. Similarly, stored data
can be accessed via separate directories
for each bandwidth, or via an additional
directory that includes ALL data.
The following additional measurement
applications can be installed.
¤ Fastore capability that samples and
saves data at very short time intervals.
¤ Building Acoustics.
¤ Loudness Determination.
Each instrument in the series can be up-
(or down-) graded to any other model, to
include more (or fewer) features. Consult
your local agency or CEL for details.
Series 3 instruments with Version 7
and later firmware feature a revised
startup sequence where Application,
Acquisition Mode and Bandwidth are
selected via separate menu screens, plus
the option of measuring sound exposure
level (SEL) in broadband SLM and a
revised keypad appearance.
For a description of all CEL-500 series
instruments, also refer to the Reference
Handbook.
Issue
:
6 1. Introduction
Getting Started - CEL-553/573/593 - Page 59