Synchronization of the measurement/integration
start to the nearest full minute or hour of the
instrument real-time clock. It helps to measure in full
cycles.
Time of measurement/integration or averaging of
the Summary Results: from 1 second to Infinitive.
For example, with 8 hours integration period the
LEQ result will be averaged for 8 hours. In case of
Infinitive, the measurement will last until the user
presses the <Stop> key.
Number of measurement/integration repetitions
after the <Start> key pressure.
This enables to make a series of measurements
without pressing the <Start> key and save this
series in the results file.
Type of integration of RMS based results (RMS
detector): Linear or Exponential. The IEC 61672-
1:2013 standard requires Linear integration, without
time weighting, however in number of countries old
regulation refers to the Exponential RMS integration
with standard time weighting: Fast or Slow.
Linear type of integration of RMS based results
(RMS detector), without time weighting according to
the IEC 61672-1:2013 standard.
Exponential type of integration of RMS based
results (RMS detector), where averaging is a
continuous averaging process that weighs current
and past data differently. The amount of weight
given to past data as compared to current data
depends on the exponential time constant. In
exponential averaging, the averaging process
continues indefinitely.
Definition of the day and night periods required by
the local standards: 6–18h and 7–19h. These limits
are used for the calculation of the L(den) function.
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