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Professional Turbidity Sensors & Suspended Solid Sensors Manufacturer
Dongrun is a leading turbidity sensor manufacturer and suspended solid sensor supplier in China. With over 20 years of experience in water quality instrumentation, we provide high-precision turbidity meters, suspended solid sensors, and SS sensors for municipal water treatment, industrial wastewater, swimming pools, and various process monitoring applications.
Our turbidity sensors are exported to more than 70 countries worldwide, serving water treatment plants, environmental monitoring agencies, and industrial facilities. As an ISO 9001 certified manufacturer, we ensure consistent quality and reliable performance for all our water quality measurement products.
Why Choose Dongrun Turbidity Sensors?
- Over 20 years in water quality instrumentation
- ISO 9001 certified manufacturer
- Export to 70+ countries worldwide
- Advanced infrared and laser measurement technology
- CE and ISO certifications
- OEM/ODM services available
- Competitive factory pricing
- Professional technical support
Measurement Principles
Our turbidity sensors use two primary measurement technologies:
Infrared Light Scattering
Infrared LED light source measures light scattering at 90 degrees. Suitable for most standard applications with turbidity range 0-4000 NTU. Low maintenance, stable performance.
Laser Turbidity Measurement
Laser technology provides higher precision and wider measurement range. Ideal for low turbidity applications and demanding industrial processes. Better sensitivity for subtle changes in water clarity.
Technical Specifications
| Parameter | Specification |
|---|---|
| Measurement Range | 0-4000 NTU (model dependent) |
| Accuracy | ±2% of reading or ±0.1 NTU |
| Resolution | 0.1 NTU (low range), 1 NTU (high range) |
| Light Source | Infrared LED (870nm) or Laser |
| Response Time | ≤5 seconds |
| Operating Temperature | 0-50°C |
| Pressure Range | 0-10 bar |
| Output Signal | 4-20mA, RS485/Modbus |
| Power Supply | 24VDC |
| Protection Class | IP68 |
| Installation | Flow-through, submersible |
Product Models
| Model | Type | Range | Application |
|---|---|---|---|
| DRTS-100 | Infrared | 0-100 NTU | Drinking water |
| DRTS-200 | Infrared | 0-1000 NTU | General purpose |
| DRTS-300 | Infrared | 0-4000 NTU | Wastewater |
| DRTS-500 | Laser | 0-100 NTU | High precision |
| DRSS-01 | Infrared | 0-5000 mg/L | Suspended solids |
| DRSS-02 | Infrared | 0-20000 mg/L | High concentration |
Applications
- Drinking Water Treatment – Filtration monitoring, clarification control
- Municipal Wastewater – Effluent quality, discharge compliance
- Industrial Wastewater – Process control, treatment efficiency
- Swimming Pools – Water clarity monitoring
- Cooling Towers – Water quality control
- Process Water – Industrial process monitoring
- Environmental Monitoring – River, lake water quality
- Aquaculture – Pond water quality
Installation Methods
Flow-through Installation
Sensor installed in flow cell with continuous sample flow. Best for clean to moderate turbidity water.
Submersible Installation
Direct immersion in tank or channel. Ideal for wastewater and environmental applications.
Channel Installation
Mounted in open channel with wiper cleaning system. For continuous monitoring in sewage channels.
Maintenance
Regular cleaning of the optical window ensures accurate measurements. Cleaning frequency depends on water quality – weekly for clean water, daily for wastewater. Wiper-equipped models reduce maintenance requirements significantly.
Factory Information
Dongrun Instrument Co., Ltd. is a professional water quality sensor manufacturer in China. Our factory covers 10,000 square meters with ISO 9001:2015 certification. We export water quality sensors to 70+ countries worldwide.
Contact Us
Email: info@dongrun-instrument.com | Phone: +86-769-23028868 | Website: www.dongrun-instrument.com
