Applications:
• Assessment of the environmental noise level,
• Noise monitoring and optional capture and analysis of sound events,
• Octave and optional third octave band spectrum analysis from 16 Hz to 20 kHz,
• Statistical analysis with calculation of 3 percentile levels and optional full statistical analysis,
• Identification of impulsive noise
• Measurements in workplaces
• Selection of personal protective equipment (SNR, HML, and OBM methods),
• Sound insulation and reclamation,
• Production quality control,
• Measurement of machine noise,
• Optional architectural acoustics and building measurements

Applications:
• Noise monitoring with sound event capture and analysis function,
• Real-time octave and third octave band spectrum analysis from 16 Hz to 20 kHz,
• Statistical analysis with calculation of all percentile levels from L1 to L99,
• Environmental noise measurement according to the decree of 16/03/1998,
• Identification of tonal components even at the standard third octave band crossing point,
• Estimate of the audibility of spectral components through comparison with equal loudness curves in real time
• Measurement in workplaces,
• Selection of personal protective equipment (SNR, HML, and OBM methods),
• Sound insulation and reclamation,
• Production quality control,
• Measurement of machine noise,
• Optional architectural acoustics and building measurements.

CHARACTERISTICS
- Frequency weighting: A, B, C, D, Linear and thirds of octave (16 Hz - 20 kHz)
- Weighted SPL measurement, SLOW, FAST and IMPULSE
- Peak level measurement (<50 µs)
- Leq measurement (0.125 s - 12 h)
- Calculation of SEL
- Calculation of the current dose and of the expected 8 hour dose
- Storage of the MAX and MIN values
- Low-consumption 512 kB memory bank
- Statistical analysis and capture of noise events
- Calculation of the reverberation time
- Automatic scanning of the thirds of octave bands
- Automatic calibration with the HD 9101 precision calibrator
- RS232C serial output with possibility of remote control
- Pre and post filter AC output
- 20 mV/dB DC output
- Power supply with four 1.5 V alkaline batteries or with an external feed.

Applications :
- Assessment of the environmental noise level
- Optional advanced data logging
- Optional capture and analysis of sound events
- Statistical analyss with the calculaton of 3 percentile level and optional full statistical analysis
- Noise monitoring (Advanced data logger Option requied)
- Identofocation of impulsive noises
- Measurements in workplaces
- Selection of personal protective equipment (SNR and HML methods)

Applications :
- Assessment of the envionmental noise level,
- Noise monitoring, capture and anlysis of sound events
- Identification of impulsive noise,

Applications :
- Noise monitoring with sound event capture and anlysis function,
- Environmental noise measurement,
- Assessment of noise tones even if they are at a frequency located between two standard third octave band fillters (with shifted bands fillters),
- Evaluation of noise exposition in workplaces, and selection of personal protective eqiopment (SNR, HML and OBM Methods),
- Sound insulation and reclamation

Delta Ohm Sound Level meters comply with IEC 61672