3M eg4 user manual Measurements, Types, Measurement parameters

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Appendix A

Measurements

Types

Displayed Data and	SPL, Average value (Lavg or Leq), Maximum value (Lmx), Minimum value (LMn),
status indicators	Peak Value (Lpk), Exposure, Run Time, TWA, UL Time

Measurement parameters

Dosimeters	Two dosimeters at once (eg4), each with its own assignable profile (via
	DMS only).
RMS Range	70 to 140 dB
RMS Weighting	A or C weighting
RMS Time Response	Fast or Slow
Exchange Rate (ER)	3 dB, 4 dB, or 5 dB
Peak Range	110 dB to 143 dB
Peak Weighting	C or Z weighting
Criterion Levels	70 to 90 dB in 1 dB increments
Threshold	70 to 90 db in 1 dB increments
Upper Limit (UL)	70 to 140 dB in 1 dB increments

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