Concept
WET Labs {Sea-Bird WETLabs} ECO FLNTUSB combined fluorometer and turbidity sensor
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1320/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | WET Labs ECO FLNTUSB | ||
| Definition | A combined fluorometer and turbidity sensor with an internal battery power supply. The instrument is designed to be used for autonomous operation. The (SB) designation signifies that this sensor is fitted with internal batteries for autonomous operation. Measures chlorophyll fluorescence at 470 nm and turbidity at 700 nm within the same volume. Chlorophyll is excited by the presence of an external light source, this excitement is detected as Chlorophyll-a fluorescence by a detector for a given sample volume of water. Turbidity is measured simultaneously by detecting the scattered light from an external light source. Key characteristics are two light sources: (1) two bright blue LEDs centred at 455 nm and modulated at 1 kHz (to excite Chlorophyll-a) and (2) one 700 nm LED (to scatter from particulate matter). Detectors for fluorescence and turbidity are positioned at a 140 degree angle to the light sources. The instrument is stable over a temperature range of 0 - 20 degC and is rated to a depth of 300 m as standard. The fluorometer can typically measure phytoplankton concentrations in the range 0.01-50 ug/l, with a sensitivity of 0.01 ug/l, at wavelengths of 470 (excitation) or 695 (emission) nm. The turbidity sensor can measure within the range 0.01-25 NTU, with a sensitivity of 0.01 NTU, at a wavelength of 700 nm. | ||
| Date | 2023-02-07T17:08:15 | ||
| Identifier | SDN:L22::TOOL1320 | ||
| Note | accepted | ||
| Has Current Version | 2 | ||
| Version | 1 | ||
| version | 2 | ||
| inScheme | http://vocab.nerc.ac.uk/scheme/SDNDEV/current/ | ||
| Broader | L19:SDNKG17 |
sensor_model | Mapping: 1696993 |
| L05 SeaDataNet device categories - (2) | |||
| Related | B75:ORG00226 |
Sea-Bird Scientific | Mapping: 1584747 |
L35:MAN0026 |
WET Labs | Mapping: 1584748 | |
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