18 Copyright ©Sigicom AB 2018
Note that each standard has its own settings of the parameters:
Interval time, Upper thresholds, Record (transient) time and
Customer string. When another standard is selected, these parameters
need to be reviewed.
Select range according to the expected sound pressure levels. It is
preferred to analyze the measurements shortly after installation to
verify that proper range and threshold is set.
4.4.2 Interval time
The interval time is how often the measured value of each channel is
saved to an interval file. The interval time can be selected to one of:
•
1*, 2, 4, 5, 6, 10, 15, 20, 30 seconds
•
1, 2, 4, 5, 6, 10, 15, 20, 30, 60 minutes
4.4.3 Upper threshold on the L
max
/ L
peak
channel
•
If the sound pressure level of the L
max
/ L
peak
channel
becomes larger than its upper threshold level, the the L
max
/
L
peak
signal is recorded in a transient file.
•
The INFRA functionalities SMS and Server messages can
be activated such that each time the sound pressure level in
the L
max
/ L
peak
channel becomes larger than the upper
threshold level, a message will be sent to one or several
recipients.
•
The upper threshold can be set to OFF which means that it
has no effect on the system.
•
When upper threshold is set to OFF, other sensors on the
same Datalogger can still trigger a transient file recording.
4.4.4 Upper threshold on the L
eq
channel
•
If the interval value of the L
eq
channel becomes larger than
its upper threshold level, new interval files are created and
uploaded to the data server.
•
The INFRA functionalities SMS and Server messages can
be activated such that each time the interval value of the L
eq
