Casella CEL CEL-181 User Manual
Page 13
Casella USA
17 Old Nashua Road #15
Amherst, NH 03031-2839
8 Specification
Dynamic Range
63dB (40dB RMS plus 23dB crest factor)
Frequency Weightings 'A' as defined in relevant standards
Range
Settings
Absolute range coverage may be manufacturer preset within the span
50-145dB(A). Constant 30 dB between High and Low ranges.
Integration Law (q)
Manufacturer preset (Exchange rate) 3, 4, 5 or 6
Linearity 0.5
dB
Display
Five digit display giving resolution of count from 0.1% to 9.999%
Overload Indicators
One sound level overload and one dose count over-run indicator
Battery Indicator
Indicates both battery condition and that the instrument is switched ON
Controls
Magnetically operated reeds for ON, OFF, DISPLAY and RESET functions.
Other controls secured under cover.
Battery
PP3 (IEC 6F22, Neda type 1604) will provide 3 by 8 hour measurements.
Types MN 1603 and TR 146 will provide 16 x 4 hour measurements.
Reverse polarity protection
Microphone capsule
Types CEL-181 are fitted with a 0.5 in diameter PZT microphone type BL 1802.
Types CEL-180 have a precision ½” measurement microphone CEL-186
Operational Environmental Limits
Temperature limits
0ºC to 50ºC and up to 95% RH
Storage limits
-20ºC to +70ºC
Weight
Approximately 230 grammes (8.2 oz)
Dimensions
134mm x 68mm x 25mm (5.4 x 2.7 x 1.0 in)
Accessories Included Presentation Case
Battery
Survey
Pads
Allen
Key
Screwdriver
Slide
Rule
Magnet
Handbook
Recommended Additional Items
CEL-182 Dose Meter Calibrator
CEL-3482 Dose Meter Windscreen
www.casellausa.com
Page 13 of 14
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800) 366-2966
27 Jan 2006
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