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¸¶ÀÌÅ©·ÎÆù ±³Á¤Àåºñ (NC-72 / 73 / 74)
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ÇǽºÅæ(Piston phone)°ú ±³Á¤±â(Calibrator)¸¦ ±¹Á¦ÀûÀ¸·Î »ç¿ë.
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SPECIFICATION |
Model |
NC-72 Pistonphone |
NC-73 Calibrator |
NC-74 Pistonphone |
Frepuency |
250Hz ±1% |
1000Hz ±2% |
1000Hz ±20Hz |
Sound Pressure level |
114dB ±0.2dB
(at 1 atm ospheric) |
94dB ±0.5dB |
94dB ±0.3dB |
Temperature |
-10¡É to +60¡É |
-10¡É +50¡É |
-10¡É ~ +50¡É |
Dimensions |
About 4 x 6 x 17 cm |
About 128(L) x 56Ø mm |
About 80 x 74 x 49 mm |
Weight |
About 740kg
(including Batteries) |
240g
(with sutteries) |
200g |
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