SEAGUARD® Conductivity/Temperature/Depth (CTD)0 pages

SEAGUARD® CTD

Conductivity, Temperature and Depth
The new AADI SEAGUARD® CTD is a robust
instrument based on the SEAGUARD®
Platform. It is a self contained instrument
for measuring conductivity, temperature and
depth. The instrument can be used as a platform
for additional measurements (like e.g. current,
dissolved oxygen, turbidity, wave and tide).
Advantages:
•tHigh Resolution and low drift
•tLow maintenance needs
•tSelectable interval from 2 seconds to 2 hours
•tSEAGUARD® Studio vizualisation software
•tSmart sensor topology based on a reliable
CANbus interface (AiCaP)
•tOutput parameters: Pressure, Temperature,
Conductivity. The CTD also provides raw data
of the Pressure, Temperature and Conductivity
measurements.
•tWindows CE based datalogger with TFT based
color touch panel for configuration
•tReal-time XML Output on RS-422(optional)
•tFor use in sea and fresh water
•t3 Measurement ranges:
0 - 300m, 0 - 2000m, 0 - 6000m

The SEAGUARD® CTD is a primary tool for determining
essential physical properties of sea and fresh water.
Standard parameters are Conductivity, Pressure/
Instrument depth and Temperature. From these
parameters the salinity of the water as well as the
density are calculated.
The SEAGUARD® CTD is designed for continuous
recordings of salinity (via conductivity measurements),
temperature and depth (via pressure measurements)
used in long term deployments. Typical application
areas are related to e.g. coastal circulation, climatic
studies and aquaculture. The SEAGUARD® CTD can
also be used as a multi-parameter platform for additional
measurements.
The included Conductivity Sensor (4319B) is an intelligent
sensor based on an inductive principle. This provides
for stable measurement with­ ut electrodes that are
o
easily fouled and may wear out in the field.
The included Temperature Sensor (4880/4060) is an
intelligent sensor based on a thermistor-bridge.

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

The included Pressure Sensor (4646/4117) is a compact
yet intelligent sensor based on a silicon piezoresistive
bridge sampled and temperature compensated by an
advanced Digital Signal Processor.
The output parameters from the SEAGUARD® CTD are
easily presented in SEAGUARD® Studio. Salinity, Density,
Depth and Sound of speed is post- calculated in
SEAGUARD® Studio.
The SEAGUARD® CTD and the AADI smart sensors are
interfaced by means of a reliable CANbus protocol
(AiCaP) using XML for plug and play capabilities. The
smart sensors can be mounted directly on the top end
plate of an AADI SEAGUARD® and are automatically
detected and recognized.
The SEAGUARD® CTD can be used with AADI Real-Time
Collector for real-time data.
The SEAGUARD® CTD has 2 battery compartments for
long deployment time.

D373 - Feb 2012