ECO probes are developed for ecological research and monitoring in waters down to 300 m.
Sensors are available for C, T, D, O2, pH, redox, light irradiance, light attenuation and scattering, chlorophyll a, current speed and sensors from other manufacturers.
Altogether 15 sensors can be attached to one ECO-probe. The 16. channel is reserved for "housekeeping" data. The transmission rate is 1200/9600 bit/s enabling up to 10 scans/s.
Moreover there is a command-channel to activate samplers, stirrers, pumps or other actuators.
The sensors are guarded by a protection cage, which itself can serve as a frame to carry the external sensors or actuators.
The electric power is fed to the probe by a constant current of 200 mA. The voltage demand depends on the number of sensors installed and the cable length. At short cables up to 100 m length the probe can be driven directly from battery voltage between 10 and 14 V and the RS232 interface to a PC.
To avoid corrosion bottom and top are made of titanium. For the pressure tube normally stainless steel is used which can also be replaced by titanium or high quality plastic.
Together with the ME-components:
a complete measurement system especially for small vessels is formed.
Although the basic technique is the same for all ME-probe-systems,
ECO has the following outstanding features:
very low expense for deployment, especially when embedded in a complete ME-system