Desun Uniwill DS500 COD Sensor, 0–2000 mg/L, RS485 Modbus Output, IP68 SS316/Titanium Body
Desun Uniwill DS500 COD Sensor, 0–2000 mg/L, RS485 Modbus Output, IP68 SS316/Titanium Body - Image 2
Desun Uniwill DS500 COD Sensor, 0–2000 mg/L, RS485 Modbus Output, IP68 SS316/Titanium Body - Image 3
SKU: SENS-0760
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Desun Uniwill DS500 COD Sensor, 0–2000 mg/L, RS485 Modbus Output, IP68 SS316/Titanium Body

₹170,079.00 (Inclusive of all taxes)
Out of Stock

The Desun Uniwill DS500 is a reagent-free UV254 absorption sensor for real-time monitoring of COD, BOD, TOC, and TSS in water. It features RS485 Modbus output for direct integration with PLCs, SCADA, and data loggers, and is built with an IP68-rated SS316/Titanium body for harsh industrial and environmental applications.

Features

  • Reagent-free UV254nm optical detection for COD, BOD, TOC, and TSS.
  • RS485 Modbus RTU output for seamless industrial system integration.
  • IP68-rated, corrosion-resistant SS316/Titanium housing.
  • Integrated automatic cleaning and turbidity compensation.
  • Wide 0–2000 mg/L COD measurement range with 3–5% FS accuracy.

Out of stock

Description

The DS500 COD Sensor employs dual-wavelength UV254 absorption technology to provide accurate, real-time measurements of Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), Total Organic Carbon (TOC), and Total Suspended Solids (TSS) without the need for hazardous chemical reagents. This eco-friendly design minimizes operational costs and environmental impact while delivering continuous data.

Engineered for durability in demanding environments, the sensor features a robust SS316 stainless steel or titanium body with an IP68 rating, making it suitable for submersion and exposure to corrosive elements. Its integrated self-cleaning wiper and automatic turbidity compensation ensure stable, low-maintenance operation and reliable readings in varying water conditions, from wastewater treatment plants to surface water monitoring stations.

Key Features

  • Reagent-Free UV Absorption: Utilizes UV254nm light source for eco-friendly, chemical-free detection of organic pollutants.
  • Multi-Parameter Capability: Simultaneously monitors COD, BOD, TOC, TSS, and water temperature.
  • Automatic Compensation & Cleaning: Built-in turbidity compensation and a mechanical self-cleaning system ensure long-term accuracy and reduce maintenance.
  • Industrial Communication: Standard RS485 interface with Modbus RTU protocol for easy connection to PLCs, SCADA, and data acquisition systems.
  • Rugged Environmental Design: IP68 waterproof rating and corrosion-resistant SS316/Titanium construction for reliable operation in harsh conditions.
  • Low Power Consumption: Operates on a 6–12V DC supply with less than 10mA current draw.
  • Flexible Installation: Standard 5-meter cable length (customizable) and compact form factor for easy deployment.
  • High Accuracy Sensing: Delivers measurements with 3–5% of full-scale accuracy across its operating range.

Applications

  • Wastewater Treatment Plant Monitoring: Continuous real-time measurement of COD and BOD for process control and effluent compliance.
  • Surface Water Quality Assessment: Deploy in rivers, lakes, and reservoirs for environmental monitoring of organic pollution.
  • Industrial Effluent Monitoring: Track pollutant loads in discharge streams from chemical, pharmaceutical, and food processing facilities.
  • Municipal Water Management: Integrate into smart water networks for source water protection and distribution system monitoring.
  • Aquaculture & Aquaponics: Monitor water quality to maintain optimal conditions for fish and plant health.

Technical Specifications

ParameterSpecification
Model NumberDS500
Measurement ParametersCOD, BOD (equivalent), TOC, TSS, Temperature
COD Measurement Range0–2000 mg/L
Accuracy3–5% of Full Scale (FS)
Sensing PrincipleUV254nm Absorption
Output InterfaceRS485 (Modbus RTU Protocol)
Power SupplyDC 6–12V, <10mA
Operating Temperature Range0°C to 50°C
Ingress ProtectionIP68
Housing MaterialSS316 Stainless Steel / Titanium
Cable Length (Standard)5 meters
Sensor Length234 mm
Sensor Diameter46 mm
Weight (Approx.)1.1 kg

Frequently Asked Questions

What is the power requirement for the DS500 COD sensor?

The DS500 operates on a 6–12V DC power supply and draws less than 10mA of current. Ensure your power source is stable and properly rated for the sensor's low power consumption to guarantee accurate and reliable operation.

How do I communicate with and read data from this sensor?

The sensor communicates via a standard RS485 interface using the Modbus RTU protocol. You will need an RS485-to-USB converter or a PLC with an RS485 port to connect it to a computer or control system. Data registers for COD, TSS, and temperature can be polled using standard Modbus function codes.

Does the sensor require chemical reagents for measurement?

No, the DS500 uses a reagent-free UV254 absorption method. It measures the absorption of ultraviolet light at 254nm by organic compounds in the water, providing an eco-friendly and low-maintenance alternative to traditional chemical-based COD analysis.

What is the purpose of the automatic cleaning system?

The integrated self-cleaning system uses a mechanical wiper to periodically clean the optical window. This prevents biofilm growth, fouling, and Particle buildup, which can interfere with light transmission and degrade measurement accuracy, especially in turbid or high-fouling water applications.

Can this sensor be used in submerged or outdoor installations?

Yes, the sensor's IP68 rating and corrosion-resistant SS316/Titanium housing make it suitable for permanent submersion and harsh outdoor environments. It is designed for continuous monitoring in wastewater treatment basins, outfalls, rivers, and other demanding water quality applications.

Package Includes

  • 1 x Desun Uniwill DS500 COD Sensor
  • Standard 5-meter connection cable

Additional Information

Weight 1.1 kg
Dimensions 25 × 7 × 20 cm

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