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