CRVW3 3-Channel Vibrating-Wire Datalogger
64
Consider using the
Network Planner
tool as part of the
development of your network plan. The
Network Planner
is part
of the
LoggerNet
software package. With this tool, you can import
a graphical map (JPG or PNG format) of the area and use that as
a background for the designer canvas. Then you can place
CRVW3 devices and other hardware onto the map/canvas at the
desired locations. After that you can plan out how connectivity
will occur between the CRVW3 devices, repeaters, the base
station and the
LoggerNet
computer. Once a plan is created it can
be saved to a computer file and retrieved later on when it is time
to configure your hardware. The tool can be used as a replacement
for
DevConfig
for configuring the device settings of multiple
hardware devices in a coordinated way. Please refer to the
LoggerNet
manual Section 4.3 for more information about the
Network Planner
.
s.campbellsci.com/documents/us/manuals/loggernet.pdf
It is possible to design a network inside of
LoggerNet
that includes
many other data acquisition devices (other dataloggers,
communications peripherals, non-vibrating-wire sensors, etc.)
mingled together with CRVW3 devices and related hardware.
Within
LoggerNet
, the CRVW3 has functionality typical of other
mainstream dataloggers, and it will act as expected for those
familiar with datalogger behavior inside that software. Although
mixed networks like this can operate properly, and it is expected
that many users will use networks with this kind of heterogeneous
design, this manual will focus only on the details of setting up
CRVW3-based data collection networks.
10.2.1 Sensor Planning
The ultimate objective of a CRVW3 network is to measure vibrating-wire
sensors and relay that data back to
LoggerNet
. You should plan out, preferably
using maps or other location-based diagrams, where each vibrating-wire sensor
will be located. You should finalize how many sensors will be measured. You
should know which sensors are already deployed into the field, and which
sensors will need to be procured and installed. You should document the make
and model of each sensor, and what output units are desired for its
measurement. You should know whether each sensor has a built-in thermistor
or not. You should ensure that manufacturer documentation for each sensor
type is available. Any cabling that is already connected to the sensor should be
documented (type and length). Implementing a naming convention for sensors
is often helpful. Installation of sensors should be planned out in accordance
with the installation guidelines specified by the sensor manufacturers.
The CRVW3 measures mainstream, single-coil circuit vibrating-wire sensors.
These sensors are readily available from multiple well-known vendors within
the industry. Campbell Scientific support personnel can give brief guidance, if
needed, on what measurements can be made with vibrating-wire sensors and
what sources can be used to procure them. A Geotechnical Instrumentation
class is available from Campbell Scientific’s world headquarters in the United
States that discusses vibrating-wire measurement sensors and systems.
NOTE
NOTE
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