Tide and Pressure sensor 4647/4647R0 pages

TIDE SENSOR 4647/4647R
is a compact fully integrated sensor for measuring
the tidal conditions. The 4647 sensor is designed
to be mounted on the AADI SEAGUARD® or
connected to SMARTGUARD using AiCaP
CANbus or in other measurement systems
using the RS-232 interface. The 4647R sensor
is designed for use with long cables by means
of RS-422 full duplex interface.
Advantages:

•t Smart Sensor technology - plug and play
•t Sensor Calibration coefficients are stored in
the sensor
•t Low maintenance needs
•t Low current drain
•t Output formats 4647: AiCaP CANbus, RS232
•t Output formats 4647R: RS-422
•t Selectable interval from 1 sec. to 255 min.
•t Tidal averaging period: 10 sec. to 8 min.
•t 2Hz and 4 Hz sampling frequency
•t Output parameters: Pressure, Tide pressure,
Tide Level, Temperature.
•t Real-time XML output
•t Measurement range: 400, 700, or 3100 kPa
•t Maximum operating depth: 300m
4647/4647R is based on a silicon piezoresistive
pressure sensor. The pressure measurements are
sampled and temperature compensated by an
advanced Digital Signal Processor.
The sensor application areas are in fixed
installations, either deployed in a seabed
installation in shallow waters, or mounted onto a
fixed structure in the upper water column.
The tide measurement is an average of the
hydrostatic pressure measured over a time period
of 10 seconds to 8 minutes (Integration time
configurable by the user). The update interval is
between 1 second and 255 minutes.
The Tide sensor output parameters are Tide pressure,
Tide level, Pressure and Temperature. Tide levels
are preliminary, internally calculated estimates,
based on fixed, user selectable values of atmospheric
pressure and water salinity. Compensation for actual
atmospheric pressure and salinity can be
postprocessed if such data is available. Tide
pressure is an average of hydrostatic pressure over
the integration time.

data are stored inside the sensor, the parameters
are by default presented directly in engineering
units without any external calculation. The sensor
also provides raw data of the pressure and the
temperature measurements.
Tide Sensor 4647 is a compact yet intelligent sensor
designed to be used with AADI SMARTGUARD or
SEAGUARD® as well as in other measuring systems.
The SMARTGUARD/SEAGUARD® and the smart
sensors are interfaced by means of a reliable CANbus
interface using an XML based protocol (AiCaP).
The Smart sensors can be mounted directly on the
top-end plate of the AADI SEAGUARD® and are
automatically detected and recognized.
The output format of Tide Sensor 4647 are AiCaP
CANbus and RS-232, while the output format of
the 4647R version is RS-422. The sensor version
must be specified when ordered as the two versions are not interchangeable. The R-version cannot be used in SEAGUARD® applications.

Since all calibration and temperature compensation

The Tide sensor can be used as stand-alone sensor with AADI Real-Time Collector for real-time
data.

D382 - Feb 2012

AADI is a trademark of Xylem Inc. or one of its subsidiaries.