Campbell Scientific CSAT3B CSAT3B Three-Dimensional Sonic Anemometer - Page 19

Features, Sensor Components

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CSAT3B Three-Dimensional Sonic Anemometer 5.1 Features The CSAT3B offers the following key features: • Integrated electronics provide easy mounting of a single piece of hardware • Integrated inclinometer • High-precision measurements ideal for turbulence and eddy covariance studies • An improved design with a thin, aerodynamic support strut close to the ends of the sensor arms, creating greater rigidity and improved accuracy of sonic temperature • Supports datalogger sampling at any frequency between 1 and 100 Hz • New CPI communications for more robust, higher bandwidth measurements • Multiple communication options including SDM, CPI, USB, and RS485 • Internal temperature and humidity measurements with easily replaced desiccant • Version 5 algorithm for calculating data outputs; combines the signal sensitivity of version 3 with the rain performance of version 4 • Includes options to filter high frequencies for applications requiring analysis of non-aliased spectra 5.2 Sensor Components The CSAT3B consists of several components. Some components come standard with every CSAT3B; others are considered accessories that must be ordered separately. Some common accessories such as cables are required to operate a CSAT3B. 5.2.1 Standard Components Standard components are items that are included or shipped with the CSAT3B. The following sections describe these items. 5.2.1.1 CM250 Leveling Mounting Kit The CM250 leveling mounting kit is shipped with the CSAT3B and comes with an adapter (FIGURE 5-1) that facilitates mounting a CSAT3B at the end of a 3.33 cm (1.31 in) OD crossarm or pipe. The kit includes a captive 3/8-in bolt that screws into the bottom of the CSAT3B block, and a 3/16-in Allen wrench to tighten the adapter on the pipe. FIGURE 5-1. CM250 mount 9

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CSAT3B Three-Dimensional Sonic Anemometer
5.1
Features
The CSAT3B offers the following key features:
•
Integrated electronics provide easy mounting of a single piece of
hardware
•
Integrated inclinometer
•
High-precision measurements ideal for turbulence and eddy
covariance studies
•
An improved design with a thin, aerodynamic support strut close to
the ends of the sensor arms, creating greater rigidity and improved
accuracy of
sonic temperature
•
Supports datalogger sampling at any frequency between 1 and 100 Hz
•
New CPI communications for more robust, higher bandwidth
measurements
•
Multiple communication options including SDM, CPI, USB, and RS-
485
•
Internal temperature and humidity measurements with easily replaced
desiccant
•
Version 5 algorithm for calculating data outputs; combines the signal
sensitivity of version 3 with the rain performance of version 4
•
Includes options to filter high frequencies for applications requiring
analysis of non-aliased spectra
5.2
Sensor Components
The CSAT3B consists of several components.
Some components come
standard with every CSAT3B; others are considered accessories that must be
ordered separately.
Some common accessories such as cables are required to
operate a CSAT3B.
5.2.1 Standard Components
Standard components are items that are included or shipped with the CSAT3B.
The following sections describe these items.
5.2.1.1 CM250 Leveling Mounting Kit
The CM250 leveling mounting kit is shipped with the CSAT3B and comes
with an adapter (FIGURE 5-1) that facilitates mounting a CSAT3B at the end
of a 3.33 cm (1.31 in) OD crossarm or pipe. The kit includes a captive 3/8-in
bolt that screws into the bottom of the CSAT3B block, and a 3/16-in Allen
wrench to tighten the adapter on the pipe.
FIGURE 5-1.
CM250 mount
9