The Genrad 1988 measures and displays sound-pressure level (SPL or LEQ) or sound-exposure level (SEL) integrated over selectable times ranging from 1 s to 24 h . Integration can be timed manually or automatically. Two time ranges are available: 1 s to 600 s in 1-s steps and 10 min to 24 h in 1 -min steps.

• Digital and analog displays
• Digital display captures and holds maximum sound level for accurate readings
• 50-dB analog meter scale has 1-dB linear calibration
• Measurement Range:
  *Sound Level Range: 30 to 140 dB in four 50-dB switch-selectable ranges.
  *Frequency Response: A, B, and C weighting; 10 octave-band filters ranging from 31.5 Hz to 16 kHz; FLAT response 5 Hz to 20 kHz
  *Detector Response: Fast, slow, impulse (per IEC651) and absolute peak, switch selected
• Displays:
  *Analog: Meter 3-in. scale, 30 to 80, 50 to 100, 70 to 120 and 90 to 140 dB
  *Digital Readout: 4-digit with decimal point
• Outputs:
  *AC Output: Weighted, 400 mV rms nominal full scale
  *DC Output: 3 V nominal full scale
• Meets the following standards (use 1987 or 1986 Sound-Level Calibrator):
  • ANSI Standard Specifications for Sound-Level Meters S1.4-1971, Type 1 (Precision)
  • IEC Standard 651-1979, Sound-Level Meters (Type 1)
  • ANSI Standard Specification for Octave, Half-Octave, and Third-Octave Band Filters for the Analysis of Sound and Vibration

Note: Includes GenRad 1962-9610 Random Incidence Electret microphone

Please contact us if you need more information on the GenRad 1988