Part Number BE031
Definition
The Auror is a portable, rugged instrument for measuring and recording ambient sound levels. It is used by architects, sound designers, municipal planners, noise code enforcement, workplace safety compliance, and others. There are many crude, inexpensive SLMs on the market, and they have their uses. But a superior instrument is required whenever:
• A
•
The Auror is a portable, rugged instrument for measuring and recording ambient sound levels. It is used by architects, sound designers, municipal planners, noise code enforcement, workplace safety compliance, and others. There are many crude, inexpensive SLMs on the market, and they have their uses. But a superior instrument is required whenever:
• A
•
• The application involves legal code or safety enforcement.
Auror is
a frequency-domain based, digital instrument. This is necessary
in order to support the accuracy and functionality required by the
industry standards. The Auror uses sophisticated digital signal
processing algorithms. Lower quality devices typically do not
perform these algorithms well, if they attempt them at all.
Features
1. Measures Loudness, which is a response based on physiological models of the varying temporal and frequency response of human aural perception.
2. Measures Volume Units (VU), a traditional, still popular low-pass signal.
3. Measures LCpk, peak sound pressure level.
4. Measures L-AT (Leq), equivalent continuous sound level.
5. Measures VU, volume units, a traditional low-pass metric, still widely used.
6. Saves time-stamped events of exceedance. Saves spectra snapshots.
7. Spectrum: Real magnitude & phase
8. Averaging: Peak hold; adjustable exponential moving average.
9. Windowing: None; Blackman-Harris; Hanning; Flat-Top
1. Measures Loudness, which is a response based on physiological models of the varying temporal and frequency response of human aural perception.
2. Measures Volume Units (VU), a traditional, still popular low-pass signal.
3. Measures LCpk, peak sound pressure level.
4. Measures L-AT (Leq), equivalent continuous sound level.
5. Measures VU, volume units, a traditional low-pass metric, still widely used.
6. Saves time-stamped events of exceedance. Saves spectra snapshots.
7. Spectrum: Real magnitude & phase
8. Averaging: Peak hold; adjustable exponential moving average.
9. Windowing: None; Blackman-Harris; Hanning; Flat-Top
10. MS Windows software for easy user interface.
11. 96 hour unattended logging.
Basic Specifications
Accuracy: ±0.5 dB compared to NIST calibration standard.
Measurement range: 10 – 100kHz, -3 dB points
Frequency weighting: A, C, Z
Sensitivity: -60dBV
Timebase stability: ±30 ppm (20 – 40°C), ±50 ppm o.w.
Accuracy: ±0.5 dB compared to NIST calibration standard.
Measurement range: 10 – 100kHz, -3 dB points
Frequency weighting: A, C, Z
Sensitivity: -60dBV
Timebase stability: ±30 ppm (20 – 40°C), ±50 ppm o.w.
Standards
IEC 61672:2003, Class 1
RoHS compliant
Meets CE specifications for portable electronic test equipment, nonmedical, nonsafety, radiated and conducted emissions.
IEC 61672:2003, Class 1
RoHS compliant
Meets CE specifications for portable electronic test equipment, nonmedical, nonsafety, radiated and conducted emissions.
User Controls
Keypad + LCD
Keypad + LCD
Copyright © 2010, Black Oak Engineering - Basic Instruments, LLC (BOE). All rights reserved. BOE reserves the right to make changes to these specifications as it deems necessary. All technical information contained herein is as accurate as possible; however, BOE shall not be held responsible for its use, nor for any infringements upon the rights of others which may result from its use. BOE products are not to be used in life support applications. All costs given herein are purely budgetary and are subject to change. Contact us for a quotation.
Warranty Policy. Any instrument ordered from BOE may be returned for full refund, less shipping costs, within 30 calendar days of delivery, provided that the instrument has not, in the opinion of BOE, been damaged or misused. An RMA number is required in all cases. See our Standard Terms & Conditions.
Basic Instruments are designed and manufactured in the USA, and they comply with ISO9001:2000.
PO Box 405 • 47 S Main St • Manheim, PA, USA 17545