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200 SERIES 
The CEL-200 Series

This is an inexpensive range of instruments for noise checks in the workplace or general noise measurements. With simple to understand functions and large LCD screens they are ideal instruments particularly for personnel new to noise measurement or where regular spot checks on workplace noise may be required.

The range of functions and features for each model are given in the tables below.

Specification

Model Number                                                             CEL-

254

231

Leq measurement capability
Time weightings Maximum Hold
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30-135dB(A) measurement range for instantaneous sound level
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70dB dynamic span - 2 ranges 30-100dB and 65-135dB
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Frequency weightings "A"
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Frequency weightings "C"
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Time weightings Slow and Fast
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Time weightings Impulse
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Pre-weighting overload detector
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Standards compliance ANSI S1.4 Type 2A
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Standards compliance IEC 651 Type 2 Impulse
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Standards compliance IEC 804 Integrating Average SLM
Displays: 3 1/2digit, 12.7mm high character LCD
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Customised LCD showing measurement mode
Auxiliary outputs: AC Conditioned 7.25V RMS FSD. Minimum load impendance 39k
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Auxiliary outputs: DC log RMS output nominally 25mV/DB. Minimum load Impendance 27k
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Common Features

Accuracy: + - 1dB under reference conditions
Electret condenser microphone 1/4" electret capsule with fixed preamplifier
Reference conditions: 114dB SPL, free field perpendicular incidence, 1kHz, 20C, 65%RH
Temperature range: -10C to +50C operating, -20C to +60C storage
Humidity effect: <0.5dB 30% to 90%RH
Batteries: 4 x AAA Manganese Alkaline Cells
Battery Life: 20 hours typical - low battery indicator
Dimensions: 258mm x 70mm x 21mm
Weight: 230 grams (with batteries)
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  Sound Level Indicators and Meters

Sound Level Meters
200 Series
400 Series
  Sound Level Indicators
Sound Ear 2000
Sound Ear
Pocket Ear
Sound Buster

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