
19
Views on the Edge
Definitions of data log values and views
To set up the Edge and work with
NOTE: The following table is based on
Views on the |
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| Explanation |
EDGE |
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LAS |
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| Sound pressure level - is the basic measure of noise loudness, |
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| expressed in decibels. (In DMS this is noted as “SPL”) |
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LASMX |
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| Maximum sound level- is the highest sound level recorded during a |
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| measurement interval with a particular response setting (Slow or Fast) and |
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| weighting (A or C). LMax is the highest value that is included in LAvg or |
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| dose calculations. |
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| Under OSHA regulations, unprotected workers may not be exposed to |
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| maximum sound levels greater than 115 dB, measured with a Slow |
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| response rate. |
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LCPK |
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| Peak Level - is the highest instantaneous sound pressure level recorded |
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| during a measurement interval. Unlike the maximum level, the peak is |
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| detected independently of dosimeter settings for response rate or |
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| weighting. |
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| Under OSHA regulations, unprotected workers may not be exposed to |
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| peak sound levels greater than 140 dB. |
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LASMN |
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| Minimum sound level - The lowest sampled sound level during the |
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| measurement interval allowing for the unit’s Response Time setting (Fast |
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| or Slow). |
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LAVG |
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| Average sound level - (in dB) computed for a chosen time duration, |
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| based on a 4, 5, or 6 dB exchange rate. LAVG with a 3 dB exchange rate is |
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| referred to as LEQ (equivalent sound level). All sound levels at or above |
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| the threshold level are averaged into the calculations relating to noise |
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| exposure. LAVG is typically calculated with no threshold, with a threshold of |
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| 80 dB or with a threshold of 90 dB. |
| Table |
Page 19 | eg4 & eg3 |