NSRTW_mk3
User’s Manual
21
7.3.6
Battery Field
This battery condition field indicates the remaining battery capacity. The indicator is surrounded by a
yellow indicator that lights-up when the battery is charging.
The battery condition indicator is scaled to indicate the approximate number of days of recording time
remaining in the battery.
7.3.7
Signals Field
The signals field provides information about the acoustic signal and sound level.
•
The graph presents the acoustic signal as it is measured in real-time. When selected, the
auto-scale button allows the scale to be dynamically adjusted so that the signal always fits in
the graph. When deselected, the scale is fixed. When using a fixed scale, the scale can be
adjusted manually by double-clicking and writing new values directly in the top-most and
bottom-most marker values on the vertical scale. The acoustic signal is scaled in
Pascals.
•
The vertical bar to the right of the graph show the sound level measured in real time. The
sound level is scaled in dB (dB-A, dB-C or dB-Z, depending on the weighting curve).
7.4
Records Tab
The
Records
tab is seen in
. It is used to retrieve the recorded information from the
NSRTW_mk3
or from a saved file, and to display and optionally export the recorded logs.
7.4.1
Instrument Download
To download data from the instrument press the
Instrument Download
button. The whole contents of
the instrument’s memory are downloaded, and the newest record is displayed in the graph.
The
Record Selector
at the top-left of the page (
(5)) indicates how many records have been
downloaded. It shows one separate tick per record downloaded. Use the white slider to select the
desired record. When selecting a record the indication
No-Data
is displayed on top of any empty graph.
Note:
It is legal for a record to contain no data at all. This may mean that the recording was started
and stopped before any data had time to be recorded. It can also be the case if no data type (Lmin,
Lmax, LEQ) was selected to be recorded. In such a case the time-stamp is still valid and can be used
to determine when that recording occurred.
The
Source
indicator shows the
User-ID
of the instrument, if any has been set.
The Y-scale can be displayed in dB or linear (Pa) scale.
The graph shows up to three curves:
•
L-max in red
•
LEQ in white
•
L-min in green
