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LX-80-15 10 Hz User Manual
30
LX-80-15 10 Hz Oceanographic Radar Sensor
Wave analysis length
- The value can be any number between 0 and 3600. If the value is set to
zero, the device will not calculate any wave parameters. The value specifices the number of water level
reading points to be used for wave parameter calculation. As the radar is making 10 measurements per
second, the total time window in seconds for wave analysis will be equal to the wave analysis length
divided by 10. For example, if the wave analysis length is set to 3600, which is the maximum possible
value, that will correspond to 360 seconds of data, or 6 minutes of data. When the radar is turned on,
and if it is not operating in SDI-12 mode, the oceanographic wave measurements will be available
over RS-232 NMEA protocol and over Modbus protocol immediately. If the total number of collected
data samples is less than the specified wave analysis length, then a smaller number of data points
will be used for analysis. After the specified number of data points is collected, the radar will discard
older measurements as the new measurements are made, and the wave parameters will be calculated
from exactly the specified number of data points. When the radar operates in SDI-12 mode, then this
parameter affects the duration returned to aM1! and aM2! commands - for more information on SDI-12
protocol see chapter 8 of this document
Change measurement parameters:
Level unit
- The measurement unit used to report the measured level value. The default
measurement unit is millimetres. When changing the measurement unit, it’s important to
make sure that other parameters which depend on the measurement unit (such as active zone
parameters) are also changed to the new unit.
Level offset
- Changes the measurement level offset. This value should not be changed.
Active zone min.
- This parameter limits the operational range of the instrument. The instrument
will detect water level only within the range set by the
Active zone min
. and
Active zone max
.
parameters. This parameter is the best way to filter unwanted radar reflections from other
structures and objects that are present on the monitoring site, that could cause false instrument
readings. It is strongly recommended to set the
Active zone min
. value to the minimum possible
distance between the water and the instrument at the specific monitoring site.
Active zone max.
- This parameter limits the operational range of the instrument. The instrument
will detect water level only within the range set by the
Active zone min
. and
Active zone max
.
parameters. This parameter is the best way to filter unwanted radar reflections from other
structures and objects that are present on the monitoring site, that could cause false instrument
readings. It is strongly recommended to set the
Active zone max
. value to the maximum possible
distance between the water and the instrument at the specific monitoring site. Typically, this is the
distance between the instrument and the lowest point in the channel.
#set_deadzone_max=<value>
#set_deadzone_min=<value>
#set_unit=0
(mm)
#set_unit=1
(cm)
#set_unit=2
(m)
#set_unit=3
(in)
#set_unit=4
(ft)
#set_level_offset=<value>
#set_wave_analysis_length=<value>
Содержание LX-80-15
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