Casella CEL CEL-283 User Manual

Casella USA
17 Old Nashua Road #15
Amherst, NH 03031-2839

CEL-283 Impulse

Integrating

Sound Level Meter

Handbook

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[e-mail]

23 Dec 2005 fax: [phone]

Casella USA
17 Old Nashua Road #15
Amherst, NH 03031-2839

Introduction

In line with the requirements of the new
International Standard for sound level meters
(IEC 651), the CEL-283 has been designed as a
full specification type 2 instrument. It also meets
the DIN Standard 46 633 and ANSI SIAM as
well as other national standards. As an addition
to the full range of facilities expected of a
conventional sound level meter the CEL-283
also has long term integrating facilities enabling
a direct readout of Leq values to be obtained.
The instrument will therefore be found a
valuable tool by all those charged with a
responsibility to control either industrial or
environmental noise.

Schedule of Parts

The instrument is normally provided as a
complete measurement kit under the part
number CEL-283/K1 and this comprises the
following individual items:

CEL-283 Integrating Impulse Sound
Level Meter

CEL-184 Acoustic Calibrator
CEL-3379 Coupler
CEL-3435 Pistol grip and hand strap
CEL-2962 Foam windshield
6F22 Batteries (3 off)
D 3380 Carrying Case
RS 1 Screwdriver

If the sound level meter only is required it is
specified as CEL-283/X and, in this instance, the
zip case type CEL-3341 is provided in place of
the accessories listed above. It is also
recommended that the windshield type
CEL-3482 be used with the X version as it may
be accommodated within the zip case. Another
useful accessory for use with these instruments
is the CEL-3435 pistol grip and hand strap that
makes for more convenient use of the
instrument.

Preparation of the Instrument

The battery compartment is located in the rear of
the instrument and is accessible when the two
retaining screws have been removed. The
batteries should be connected to the two flying
leads and placed in the battery compartment
before replacing the cover. To check the
batteries the ON/OFF switch should be set to
the battery position and the meter should then
indicate within the scale banded 'batt' if they
have sufficient charge to operate the instrument
correctly. The batteries must be removed if
either becomes discharged or if the instrument
is not going to be used for some time. As an
alternative to the primary cells provided, nickel
cadmium rechargeable batteries type RS 591
089 may be used with this instrument. A suitable
charger for these NiCad batteries is the type RS
691 067 which must be specified separately.

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23 Dec 2005 fax: [phone]