- Model 850016 - 2 Pt. Acoustical Calibrator

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For calibration of all Sper Scientific digital sound meters or any sound level meter with 1” or ½” microphone. Conforms to ANSI S1.4-1984 and IEC942 1988 Class 2 standards for acoustical calibrators. Simply place the calibrator on to the digital sound meter’s microphone, turn on the calibrator, and adjust the decibel meter’s reading to either 94 or 114 dB. Operates at a frequency of 1KHz ±4% and with an accuracy of ±0.5 dB. Built in battery check. Easily portable for field use, it comes with a carrying case, adaptors for 1/2” and 1” microphones, instructions and a 9 volt battery. Dimensions: 5” x 1⅞” (127 x 48 mm). Weight: 8.4 oz (238 g).

  • Output Sound Level: 94 dB and 114 dB re 20 uPA under reference
  • Output Frequency: 1kHz ±4%
  • Accuracy: ± 0.5 dB
  • Operating Environment:
    • 32 to 104°F (0 to40°C)
    • Altitude up to 2000 meters
    • 10 to 70% RH
  • Storage Environment
    • 14to140°F (-10to60°C)
    • 10to90% RH
  • Test Conditions
    • 20°C
    • 65% RH
  • Atmospheric Pressure: 1013 mbar

ANSI S1.4 Type 2
Specifications for Sound Level Meters
The American standard for sound level meter performance. Very similar to IEC 60651. Grades in order of accuracy: Type 1, Type 2

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