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英国
Casella-CEL 声级计(200系列）
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Calella-CEL声级计200系列主要包括CEL-231和CEL-254两种。
技术参数:
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Feature |
CEL-231 |
CEL-254 |
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Accuracy IEC 60651
& ANSI S1.4 |
Type 2 |
Type 2 |
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Microphone type |
1/4inch fixed electret |
1/4inch fixed electret |
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Total measurement range(dB) |
30-135 |
30-135 |
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Measurement ranges(dB) |
30-100,65-135 |
30-100,65-135 |
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Frequency weighting |
A |
A&C |
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Time weighting |
Slow&Fast |
Slow&Fast Impulse |
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Measured Parameter |
Instantaneous level |
Instantaneous level |
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Maximum level |
Overload detector |
Yes |
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Display |
3 1/2 digit
LCD
12.7mm character
height |
3 1/2 digit
LCD
12.7mm character
height |
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Analogue ac output |
7.25V rms at FSD |
7.25V rms at FSD |
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Analogue dc output |
25mV/dB |
25mV/dB |
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Powered by |
4*AAA batteries |
4*AAA batteries |
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Typical battery
life(hours) |
20 |
20 |
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Low battery
indicator |
Yes |
Yes |
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Sizn mm(in) |
258*70*21
(10*2
3/4*7/8) |
258*70*21
(10*2
3/4*7/8) |
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Weight gm(oz) |
230(8 1/4) |
230(8 1/4) |
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