Page 26
JANUARY 2010 - TD 220a DEPLOYMENT GUIDE, RDCP600
1.5
Column Types
One of the unique features of the RDCP 600 is the ability to work with several profile columns
in the same configuration, Refer to
basic description of the RDCP600
.
The columns suite may comprise a mix of different or similar column types.
There are essentially three column types available, refer to page 12:
Instrument referred:
An
instrument
referred
column starts at a certain
distance from the instrument and extends above the
instrument to a certain range.
Instrument referred columns are not influenced by tidal
variations.
This is the normal column type that we are used to from
other current profilers.
Surface referred:
A
surface referred
column starts at a certain distance
from the surface and extends down in the sea.
The instrument utilizes the high accuracy pressure sensor
to measure the distance from the instrument to the
surface and uses this information to maintain the
column starting position.
Surface cell:
A
surface cell
is a special version of a surface referred
column.
The surface cell is one single cell that is aligned so that
the centre of the cell is located at the surface. The
surface cell is only available if the quartz pressure
sensor is installed.
IMPORTANT! Surface referred cells and surface cell is one available on RDCP with quartz
pressure sensor 3187 installed.
