If <6h-18h> option is selected for the <Day Time Limits> in the instrument then:
T
d
(day-time) starts from 6 am and ends at 6 pm,
T
e
(evening-time) starts from 6 pm and ends at 10 pm,
T
n
(night-time) starts at 10 pm and ends at 6 am.
If <7h-19h> option is selected for the <Day Time Limits> in the instrument then:
T
d
(day-time) starts from 7 am and ends at 7 pm,
T
e
(evening-time) starts from 7 pm and ends at 11 pm,
T
n
(night-time) starts at 11 pm and ends at 7 am.
Daily Personal Noise Exposure is the noise
exposure level for a nominal 8-hour working
day. The LEPd result is calculated on the
base of the LEQ