For Laboratory , OSHA , State and Local
noise regulatory measurements where the
special capabilities of an impulse instrument
are required.

• Meets ANSI 51.4-1983

• 40 - 140 db Range

• Fast, Slow and Impulse Response

• "A" "B" and "C" Weighting

• Fast, Slow and Impulse Response

• Outputs to Interface with Recorders,
  Spectrum Analyzers, Octave Band Filters

• Detachable Microphone

The Octave Bank Filter accessory enables the
Sound Level Meter to measure narrow frequency
bands for isolation and analysis of specific noise
sources.

• Provides Active Filtration Over 10 Selectable
  Ranges From 31.5 Hz to 16k Hz
• Gain Settings From 0 db. + 1 0db or 20db
• Type E, Class II Filter Set Requirements
• Attaches Directly to Meter
• Use Hand-Held or Tripod Mount

< Model 898

890-2 and 896 Calibrators

Sound pressure level callibrators are essential
accessories to be used before or after taking
measurements with sound level meters and noise
dosimeters.  All Simpson Callibrators are immune
to a wide range of temperature and humidity
conditions while mainting tight output level
tolerances.  The 890-2 and 896 can be used to adjust Simpson Models 886-2, 884-2, 899 and othersound level meters with a 1" diameter microphone.

• 890-2 provides a constant 94 db or  114 db sound pressure at 1 KHz (0 db = 0.0002 Mbar).

• 896 offers the versality of multiple output
  frequencies (125 Hz, 250 Hz, 500 Hz, 1 kHz,
  and 2 kHz ) along with an output level choice of 94 db or 114 db, making it well suited for callibrating meters with octave band filters.

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