Larson Davis System 824, Technical Reference Manual

Page: 476 / 673

A-20 824 Reference Manual 9/29/09
Sound Exposure (E) is calculated
and displayed in pascal squared
hours as needed in some of the
European Countries. This value is
read with the R162 command and is
available in the top line of the
DOSE-a display. The formula used
is:
E = T • (10^(Leq/10)) • 20µPa 2 ,
where E is the Exposure, T is the
elapsed time in hours, and 20µPa
2 is
the reference sound pressure 20
micro pascal squared.
R163,x SSA, ISM,
LOG TAKT 3 nnn.n dB
R164,x SSA, ISM,
LOG TAKT 5 nnn.n dB
R165 LOG PassBy Time of Occurrence ddmmmyy hh:mm:ss
R166 LOG PassBy Event Duration hh:mm:ss / mm:ss.ss
R167 LOG PassBy Lmax nnn.n
R168 LOG PassBy Leq nnn.n
R169 LOG PassBy SEL nnn.n
R170 ALL External Battery Level in Volts nn.n V
R171,f SSA, AUD,
TAL RTA filter - LIVE Level
*f is ANSI filter nnn.n dB
R172,f SSA, TAL RTA filter - CURRENT Leq
*f is ANSI filter nnn.n dB
R173,f SSA, TAL RTA filter - OVERALL Leq
*f is ANSI filter nnn.n dB
R174,f SSA, LOG,
RTA, AUD,
TAL RTA filter selected frequency
*f is ANSI filter cccccHz