Portable seawater turbidity measuring instrument measuring probe

American SeapointCompany——turbidity sensor

Characteristics:

• Ultra low power consumption

• Small size

• Operating depth up to 6000 meters

• The sensing volume is limited by the optical system

• Not sensitive to ambient light

• The linear output range is up to 50 times the range

• Four adjustable sensitivity options

• Equipped with optical feedback compensation for temperature coefficient and optical device attenuation

• Extremely low offset voltage, no need for calibration

• The interface is easy to connect with the data acquisition system

• Durable and corrosion-resistant

• Pin compatible with Seapoint fluorescence meter

Application:

• Pollution monitoring

• Conventional water quality and wastewater quality testing

• Sediment transport

• Ocean profile observation

• River monitoring

American Seapoint Company Seapointturbidity sensorBy detecting the scattered light of suspended particles in water, an output voltage proportional to turbidity or suspended solid matter is generated. The power consumption is very low, so it is also very suitable for applications that require consideration of battery power. Sensitivity can be selected from two digital lines controlled by hard wiring or microprocessors. When measuring in very clear and very turbid water, it is necessary to choose the appropriate range and resolution. Zero offset voltage less than 0.1mV does not require cross gain calibration. *The optical design of the sensor limits its sensing range to within 5 centimeters, allowing for near bottom measurements and minimizing erroneous reflections within the restricted area. The sensor interface is easy to integrate with data acquisition software and can be configured and customized according to user needs.

Technical Specifications:

Power supply: 7-20 V DC, average current of 3 mA, peak current of 5 mA

Output: 0-5.0 V DC

Output time constant: 0.1 s

Output impedance: 1000 Ω

RMS noise:<1 mV

Transient period of power amplification:<1 s

Light source wavelength: 880 nm

Sensing distance (starting from the window): less than approximately 5 cm

Linearity: ± 2% deviation 0-1250 FTU; ± 5% deviation 0-1600 FTU

Temperature coefficient:<0.05%/° C

Operating depth: 6000 meters

Weight: 80g

Operating temperature: 0 ° C -65 ° C

Material: Hard polyurethane, epoxy resin

Sensitivity/Range:

(* * 1250 FTU and above are nonlinear outputs)