Casella CEL CEL-224 User Manual
Page 4
Casella USA
17 Old Nashua Road #15
Amherst, NH 03031-2839
www.casellausa.com
Page 4 of 4
tel:
(
800) 366-2966
25 Jan 2006
fax: (603) 672-8053
Manufacturer's Servicing And Warranty
Arrangements
Each instrument has been carefully inspected
and calibrated prior to dispatch from our factory
in order to ensure its rigid conformity with the
requirements of our specification. All technical
information relating to individual instruments is
filed under the instrument's serial number. It is
important, therefore, to always quote this
number in any correspondence with the
manufacturers. The serial number is located on
the back of 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 first twelve months from the date of the initial
calibration.
Many of the specialized components used in the
instrument are subject to separate warranties by
their actual manufacturers and in all cases
benefit of these undertakings will be passed
onto the end user. However, Computer
Engineering's (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. In the event of a malfunction
developing the instrument should be carefully
packed and returned to either the
manufacturer's agent in the territory or, in the
case of domestic sales, to our Hitchin factory
along with a detailed description of the fault. The
necessary repairs will be undertaken and the
instrument returned as soon as possible. After
the warranty has expired, except on approved
accounts, service work is undertaken against
quotation and all packing and transit costs are
charged extra. In the case of sales in the UK,
service contracts are available for the
instruments and full details of these are
available on request.
Specification
Accuracy
Sound level meter: IEC 651, BS 5969 and ANSI
S1.4 in the type 2 category. DIN 45 634
Ranges
40 - 80 dB, 70 - 110 dB and 100 - 140 dB
Measuring Limits
Self-noise less than 35dB(A) or less than
50dB(Flat)
Microphone
12.7 mm (0.5 inch) electret condenser type
Frequency Response
dB(A),
Display
47 mm (1.9 inch) meter movement covering 40
dB dynamic range.
Time Weightings
Fast, Slow and Impulse as per standards.
Calibration
Field calibration checks by means of CEL-184 or
CEL-182 Acoustic Calibrators (NB coupler type
CEL-2843/2 necessary for X version).
Batteries
3 x 6 F22 (or equivalent) - 2 for sound level
meter and one for calibrator.
Temperature Range
-10 to +50ºC operational. -15 to +60ºC storage.
Humidity Range
30% to 90% for ±0.5 dB
Dimensions
235mm x 75mm x 54mm (9.2in x 3in x 2.1in)
Weight
425g (15oz)
Calibration Certificate
CEL-224 serial number ...................... .... ... .
Date …………………………………………….
CEL Instruments are manufactured and serviced
by:
Casella CEL Inc.
17 Old Nashuia Road #15,
Amherst, NH 03031 USA
PHONE (800) 366-2966
FAX (603) 672-8053
In line with our policy of continual design
improvement we reserve the right to amend any
of the details in this handbook.