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Seapoint - Turbidity Meter
The Seapoint Turbidity Meter detects light scattered by particles suspended in water, generating an output voltage proportional to turbidity or suspended solids. The low power requirements make it ideal for applications where battery drain is a concern. Range is selected by two digital lines which can be hard wired or microprocessor controlled, thereby choosing the appropriate range and resolution for measurement of extremely clean to very turbid waters. The offset voltage is within 1 mV of zero and requires no adjustment across gains. The unique optical design confines the sensing volume to within 5 cm of the sensor allowing near-bottom measurements and minimizing errant reflections in restricted spaces. The sensor is easily interfaced with data acquisition packages; a 5 ft pigtail is supplied. Custom configurations are available.
- Very low power requirements
- Small size
- 6000 m depth capability
- Optically confined sensing volume
- Insensitive to ambient light
- Linear output over more than 5 decades
- Four programmable ranges
- Optical feedback compensates for temperature coefficient and aging of optical components
- Very low power requirements
- Very low offset voltage does not require adjustment
- Interfaces easily with data acquisition systems
- Rugged, corrosion-free materials
- Pin compatible with Seapoint Chlorophyll Fluorometer and Seapoint Rhodamine Fluorometer
- Profiling, Moored, Towed, or In-Line Measurements
- Pollution/Runoff Monitoring
- Dredging and Construction Monitoring
- Water and Wastewater Quality
- Sediment Transport and Settling Studies
- Ocean Science and Research
- Limnological Studies
- Hydrothermal Vent Detection
- Crude Oil Detection
- Power Requirements: 7-20 VDC, 3.5 mA avg., 6 mA pk.
- Output: 0-5.0 VDC
- Output Time Constant: 0.1 sec.
- RMS Noise: < 1 mV
- Output Impedance: 1000 ohms
- Power-up Transient Period: < 1 sec
- Light Source Wavelength: 880 nm
- Sensing Distance (from windows): < 5 cm (approx.)
- Linearity: < 2% deviation 0-1250 FTU, <5% deviation 0-1600 FTU
- Temperature Coefficient: < 0.05%/°C
- Depth Capability: 6000 m (19,685 ft)
- Weight (dry): 86 g (3.0 oz)
- Operating Temperature: 0°C to 65°C (32°F to 149°F)
- Material: Rigid polyurethane