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>94dB and 114dB Sound Calibration at 1KHz
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>1", 1/2" or 1/4" diameter microphone »ç¿ë °¡´É
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- Output Sound Pressure Levels :
114dB and 94dB re 20 uPa under refrence conditions
- Output Frequency : 1000Hz ¡¾ 2%
- Reference Conditions :
TEMPERATURE ¡æ 23¡É(73¢µ)
ATMOSPHERIC PRESSURE ¡æ 1013mbar(760mm of Hg)
RELATIVE HUMIDITY ¡æ 65%
- Accuracy of Sound Pressure Level :
Under stated reference environment conditions ¡¾0.5dB
- Power : One 9V battery 006P or IEC 6F22 or NEDA 1604
- Battery Test : Internal circuitry checks condition of battery continuously.
Calibrator will operate at all if battery voltage falls below acceptable range.
- Battery life : About 20 hours
- Dimensions : 103(L)x63(W)x54(H)mm
- Weight : approx. 200g(include batteries)
- Operating temperature : -10 ~ 50¡É(14 ~ 122¢µ)
- Operating humidity : 0 ~ 90%RH
- Accessories : 9V battery, Carrying case , Instruction manual,
1/2" and 1/4" Microphone Adaptor
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