Seapoint - Model SUVF - Ultraviolet Fluorometer
The Seapoint Ultraviolet Fluorometer (SUVF) is a high-performance, low power instrument for in situ measurement of fluorescent materials including chromophoric dissolved organic matter (CDOM), crude oil, and UV fluorescent dyes. Its small size, very low power consumption, high sensitivity, wide dynamic range, 6000 meter depth capability, and open or pump-through sample volume options provide the power and flexibility to operate in a wide variety of conditions. The SUVF uses modulated ultraviolet LED lamps and optical filter for excitation. The fluorescent light signal passes through a blue emission filter and is detected by a silicon photodiode.
Product Overview
The low level signal is then processed using synchronous demodulation circuitry which generates an output voltage proportional to the amount of fluorescent light received. The SUVF may be operated with or without a pump. The sensing volume may be left open to the surrounding water, or, with the use of the supplied cap, can have water pumped through it. Two control lines allow the user to set the range to one of four options. These lines may be hardwired or microprocessor controlled to provide a suitable range and resolution for a given application. The sensor is easily interfaced with data acquisition packages; a 5 ft. pigtail is supplied. Custom configurations are available.
Features
- Very low power requirements
- Can be used in pumped or open deployments
- Small size
- 6000 m depth capability
- Good ambient light rejection
- Linear output
- Four programmable ranges
- Low temperature coefficient
- Low offset voltage does not require adjustment
- Pin compatible with other Seapoint sensors
- Interfaces easily with data acquisition systems
- Rugged, corrosion-free materials
Application/Industries Served
- Ocean color research
- Water and Wastewater quality
- DOM cycle studies
- Radiative transfer studies
- Ocean Science and Research
- Limnological Studies
- Crude oil detection
- Dye detection
Specifications
- Power Requirements: 8.5-20 VDC, 15mA avg., 27mA pk.
- Output: 0-5.0 VDC
- Output Time Constant: 0.1 sec.
- Power-up Transient Period: < 1 sec.
- Excitation Wavelength: 370 nm CWL, 12 nm FWHM
- Emission Wavelength: 440 nm CWL, 40 nm FWHM
- Sensing Volume: 340 cu.mm
- Minimum Detectable Level: 0.05 µg/l (Quinine Sulfate)
- Depth Capability: 6000 m (19,685 ft)
- Weight (dry): 1000 g (2.2 lbs)
- Operating Temperature: 0°C to 65°C (32°F to 149°F)
- Material: Rigid polyurethane
- Underwater Connector: Impulse AG-306/206 (others available on request)
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