Overview
A complete reagent-free online instrument built around multispectral absorption and scattering. It is intended for continuous trend monitoring, process control and early-warning points where dense data and low consumable use matter.
Water Quality SensorsCurrent model
NSDD6
Industrial Multispectral Water Quality Sensor | COD sensor
Self-cleaning, reagent-free multispectral sensor for continuous organic pollution, turbidity, color and temperature monitoring.
Original manufacturer · Factory-direct supply
Questions go straight to the source
Ask about parameters, interfaces, calibration, versions, customization or volume supply. The answer does not need to pass through layers of resellers.
- In-house R&DOptics, sensor-interface electronics, algorithms, firmware and mechanical integration are developed as one product system.
- Production capabilityFrom prototype and pilot build to assembly, functional testing and volume delivery, production follows the product team’s technical definition.
- Quality traceabilityModel, specification, firmware or hardware version and test requirements remain connected, reducing ambiguity between sales claims and delivered goods.
Overview
Why this product
Self-cleaning, reagent-free multispectral sensor for continuous organic pollution, turbidity, color and temperature monitoring.
A complete reagent-free online instrument built around multispectral absorption and scattering. It is intended for continuous trend monitoring, process control and early-warning points where dense data and low consumable use matter.
NSDD6 performs non-contact spectral measurement without chemical reagents and uses automatic physical cleaning to support long-term field deployment. It is designed for surface water, industrial and domestic wastewater, treatment-plant effluent and discharge monitoring.
- ✓Up to six indicators: TOC, COD, turbidity, color, UV254 and temperature
- ✓Non-contact spectral measurement without reagents
- ✓Automatic physical cleaning for fouling control
- ✓Long-distance isolated RS485 communication
- ✓316L stainless steel and POM industrial construction
Verified technical detail
Information to provide for selection · Calibration, validation and maintenance
Self-cleaning, reagent-free multispectral sensor for continuous organic pollution, turbidity, color and temperature monitoring.
Interface / Supply
RS485, 9600 bps; up to 1000 m · DC 9–36 V; 75 mA measuring, 450 mA cleaning typical
Measurement Range / Accuracy
TOC 0–300 mg/L; COD 0–800 mg/L; turbidity 0–3000 NTU; color 0–1000 degree; UV254 0–5 AU/cm; 0–80 °C · TOC/COD/color/UV254 ±10% F.S.; turbidity ±5% F.S.; temperature ±0.5 °C
Installation and commissioning
Select a representative point with stable immersion and minimal trapped air.
Verified technical detail
Engineering and integration
Engineering and integration
- 01
Simultaneously reports TOC, COD, turbidity, color, UV254 and water temperature.
- 01
Isolated RS485 communication supports Modbus RTU, 9600 bps and cable runs up to 1000 m.
- 01
9–36 VDC input; typical measuring current 75 mA and automatic-cleaning peak current 450 mA.
- 01
IP68 stainless-steel body, Ø58 × 203 mm, for immersion or controlled flow-through installation.
Installation and commissioning
- ✓
Select a representative point with stable immersion and minimal trapped air.
- ✓
Validate the application calibration against laboratory reference samples from the actual water matrix.
- ✓
Use the cleaning interface where biofilm or suspended solids can coat the optical windows.
Product and document views
Public documents
NSDD6 Technical Specification
NSDD6 中文产品彩页Applications
Typical applications
Use the product as part of a complete measurement workflow, not as an isolated component. Confirm the water matrix, target range and decision that the data must support.
Wastewater Treatment
Continuous, high-density water data for process optimization, inlet/outlet comparison and early anomaly detection.
Surface Water Monitoring
Compact, reagent-free sensing for rivers, lakes, reservoirs and distributed environmental networks.
Industrial Process Water
Digital sensors and embedded ASICs for equipment builders, automation systems and water-intensive production.
Typical applications are reference cases, not capability limits.
Propose a new application →The applications above are common examples. If this measurement principle may solve a different problem in your field, we welcome a feasibility discussion.
Technology
From selection to reliable data
- 01
Define the measurement objective and expected range.
- 02
Match the sensor, probe or analyzer to the real sample matrix.
- 03
Complete mechanical, electrical and communication integration.
- 04
Validate results with reference samples before routine operation.
Engineered for dependable integration
Integration and installation checklist
- ✓Target parameters and expected concentration range
- ✓Water matrix, fouling risk and installation method
- ✓Communication interface and sampling frequency
- ✓Calibration, validation and maintenance strategy
- ✓Information to provide for selection: NSDD6 · Water Quality Sensors
Calibration, validation and maintenance
Validate the complete system with representative samples. Record the reference method, temperature and installation conditions. Recheck after cleaning, replacement or process changes, and define a maintenance interval from actual fouling rather than a fixed assumption.
FAQ
Frequently asked questions
Is this product ready to use in every water matrix?
The product platform is defined, but range, calibration and installation must still be confirmed against the actual water matrix and project objective.
What should be checked before integration?
Confirm power, interface, cable length, enclosure, sampling frequency, probe position and the host system data format.
How should measurement quality be verified?
Compare representative samples with an agreed reference method and document the acceptance criteria before commissioning.
Can datasheets, protocol information and engineering support be supplied?
Yes. Ask for the current ordering specification and describe your application so the correct materials can be supplied.
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