System Operation Manual
SAT-DN-00434, Rev. B
LOBO
2017-05-16
Page 28 of 86
Copyright
2017 Sea-Bird Scientific. All rights reserved.
4.5
WET Labs ECO-FLNTUS
The ECO-FLNTUS is a sensor manufactured by WET Labs to measure chlorophyll-A fluorescence and
turbidity. The sensor has an anti-fouling wiper that opens and cleans the optical window before every
measurement. Note that the ECO-FLNTUS is a standard component of the WET Labs WQM. Example
specifications are summarized below in Table 4.
Table 4: Example ECO-FLNTUS Specifications
Manufacturer
WET Labs
Model
ECO-FLNTUS
Input Voltage
7
–
15 Vdc
Typical Input Current
80 mA (100 mA with bio-wiper)
Optical (Turbidity)
Wavelength
700 nm
Sensitivity (min)
0.01 NTU
Range (typical)
0
–
25 NTU
Optical (Fluorescence)
Wavelength excitation
470 nm
Wavelength emission
685 nm
Sensitivity
0.02 µg/l
Range (typical)
0.02 to 60 µg/l
Linearity
99% R
2
Operating Temperature
0
–
30 °C
Operating Depth
300 m
Sampling rate
To 8 Hz
Serial Interface
RS-232 at 19200 bps
Dimensions
Ø2.5 in x 5.25 in (Ø6.3 cm x 13.3 cm)
Weight (in air)
1.1 lbs (0.5 kg)
Weight (in water)
0.19 lbs (0.08 kg)
Generally speaking, no change to the factory default settings for the ECO sensors are required, although
the user may wish to adjust the sample rate if higher temporal resolution or longer averages are desirable.
During port configuration, the STOR-X must be informed that an ECO-sensor is attached. This allows the
STOR-
X to send a “stop” command to the sensor so that the shutter will close prior to power removal.
4.5.1
WET Labs WQM
The WQM is a sensor manufactured by WET Labs to measure several key water quality parameters in a
single package, incorporating both WET Labs and Sea-Bird sensors. These measurements include
temperature, conductivity and salinity, depth, dissolved oxygen, chlorophyll fluorescence, turbidity, and
backscattering data. The WQM also integrates a bleach injection system to help prevent biofouling. The
figure below shows the WQM mounted in the LOBO frame. Example specifications are given below in Table
5; p
lease refer to the manufacturer’s documentation for complete specifications.
