Casella CEL CEL-269 - Manual (Page 7)

Over load detection :
Pre-weighting overload detector, with 2.5 second
dwell time.
Under range detection :
In S PL and M AX modes, under range is indicated
when the measured RMS level falls below 65 dB
(HI Ranges) or 30 dB (LO Ranges), there is a 2.5
second dwell time.
In L EQ mode, under range is indicated if the
energy in a sample falls below 64.5 dB (HI
ranges) or 29.5 dB (LO ranges).
Otherwise the calculation would include at least
one incorrect sample. This is a permanent
indication that can be removed only by resetting
the instrument.
Start up stabilisation time:
20 seconds.
Output:
Standard 3 pole 3.5 mm coaxial socket with a.c
on pin and ground on sleeve.
AC: Conditioned signal, 7.25 V RMS for
FSD,
Recommended impedance of load
>39 k Ω .
Batteries:
4 x IEC AAA Manganese Alkaline type.
Battery life is typically better than 20 hours with
continuous use.
Dimensions:
258 x 70 x 21 mm, (10 x 2.75 x 0.85 inches).
Weight:
200 g, (0.45 lb) excluding batteries.
The Manufacturers reserve the right to change instrument specifications without prior notice.
Manufacturers Servicing & Warranty Arrangements
In order to ensure its rigid conformity with the
requirements of the specification, this instrument
is thoroughly inspected and calibrated prior to
dispatch from the factory. All technical
information for an individual instrument is filed
under the instrument serial number. Therefore,
the serial number should be quoted in any
correspondance concerning the instrument.
The manufacturers undertake to rectify any
defect in the instrument that is directly
attributable to faulty design or assembly, and
which becomes apparent during the warranty
period. In order to take advantage of this
warranty, the instrument must be returned,
carriage paid, to the manufacturer's factory or
accredited agent, where necessary repairs will be
carried out. The warranty period beginning with
the initial date shown on the Certificate of
Compliance is normally 12 months, but with
exceptions on certain specialised components
supplied by other manufacturers which are
warranted for shorter periods.
Some of the specialised components used in this
instrument may be subject to longer guarantees
by their actual manufacturers, and in all such
cases, the benefit of these undertakings will be
passed on to the user. However, CASELLA CEL's
liability is limited to items of their own
manufacture, and they do not accept liability for
any loss resulting from the operation or
interpretation of the results from this equipment.
A comprehensive Instrument Calibration
Maintenance Agreement (ICMA) scheme is
available to extend the initial warranty period of
this instrument. At the end of the first warranty
period, it is recommended that the equipment be
returned to the CASELLA CEL Service and
Re-calibration Department at Bedford, where it
will be inspected and entered into the ICMA
scheme as required. The warranty will then be
extended for the period stated on the individual
schedule. Please contact your local CASELLA
CEL agent for full details of this service.
In addition, CASELLA CEL operates a NAMAS
accredited laboratory No. 0237 which is able to
perform certain acoustic calibrations with
traceability to U.K. National Standards, details on
request.
In the event of a malfunction developing during
the warranty period, the instrument should be
carefully packed and returned either to CASELLA