NMS044 Reference Manual
Default NMS044 Setup File
4-3
The NMS044 setup file contains metrics that are commonly measured
when measuring outdoor noise. These default settings will log one
hour intervals, daily results, and one second time histories to view
noise levels as a function of time. Triggers SPL 2 (set to 65 dB) and/or
PEAK 3 (set to 140 dB) will send email alerts any time there is an event
detected. This default setup is described below.
FIGURE 4-4
NMS044 Settings: Control
TAKE NOTE
Measurement
history is only available with
the 831C-ELA or 831C-MRS
option purchased and
installed on the Model 831C
SLM. For more information,
see “Contact Larson Davis” on
page i-2.
It is recommended to set Continuous as the Run Mode for the NMS044.
This mode will begin a run every time the meter is powered on and will
continue to run until a manual Stop or the meter is powered off. If the
system loses power and then is recharged sufficiently, the system will
power on and a measurement will start on its own. The Daily Auto Store
is set to store once a day, so you will have 24 hour measurement files.
The PRM2103 preamplifier can do a daily automatic calibration check
to ensure that the measurements are accurate. A recommended time
for the calibration check is 2:30:00.
FIGURE 4-5
NMS044 Settings: Time History
