Suspended Solids / Sludge Concentration Sensor

Q: What is the difference between SS and MLSS measurement in wastewater treatment?

SS (Suspended Solids) generally refers to solids in water or effluent, while MLSS (Mixed Liquor Suspended Solids) is specific to activated sludge concentration in aeration tanks. This sensor supports both applications by measuring suspended solids using infrared scattering technology.

Q: What factors most commonly affect the accuracy of online sludge concentration measurement?

Accuracy can be affected by sludge particle size, air bubbles, flow turbulence, sensor fouling, and improper installation depth. Proper installation and routine cleaning significantly reduce these effects.

Q: How often does the SS / MLSS sensor require maintenance?

Maintenance frequency depends on sludge characteristics. In most wastewater plants, cleaning every 1–4 weeks is recommended. The optional automatic cleaning scraper can greatly extend maintenance intervals.

Q: Can the sensor be used in high-concentration sludge environments?

Yes. The sensor supports measurement ranges up to 120,000 mg/L, making it suitable for high-concentration sludge zones such as aeration tanks, return sludge lines, and thickening processes.

Q: How does ISO 7027 technology reduce measurement errors?

SO 7027 infrared scattered light technology minimizes the influence of sample color and ambient light, ensuring consistent and reliable sludge concentration measurement even in dark or colored wastewater.

Q: What is the recommended installation method for stable online measurement?

Submersible installation in areas with stable flow and representative sludge mixing is recommended. Avoid installation near aerators, in dead zones, or areas with excessive turbulence to ensure accurate and stable readings.

The Suspended Solids / Sludge Concentration Sensor is designed for continuous online measurement of suspended solids (SS) and sludge concentration (MLSS) in water and wastewater treatment processes.

Based on ISO 7027 infrared scattered light technology, the sensor effectively eliminates the influence of sample color and provides stable, repeatable, and reliable measurement results. It is widely used in municipal and industrial wastewater treatment plants, process water systems, and environmental monitoring applications.

وصف أجهزة الإرسال والاستشعار

Suspended Solids Sludge Sensor Key Features & Advantages

ISO 7027 Standard Method
Uses infrared scattered light technology to minimize color interference and ensure measurement consistency.
Dual-Beam Infrared Scattering Detection
Improves accuracy, repeatability, and long-term stability.
High Measurement Reliability
Excellent repeatability and stability, suitable for continuous online monitoring.
Built-in Self-Diagnostic Function
Automatically monitors sensor status to ensure reliable and accurate data output.
Optional Automatic Cleaning Scraper
Reduces fouling and maintenance frequency, especially in high-solids applications.
RS485 Communication
Supports connection to upper-level systems such as PLC, SCADA, or data acquisition units.

Suspended Solids Sludge Sensor Typical Applications

Municipal wastewater treatment plants
معالجة مياه الصرف الصناعي
Activated sludge process monitoring (MLSS)
Sedimentation tanks and aeration basins
Environmental water monitoring
Process water systems with suspended solids

Suspended Solids Sludge Sensor Measurement Principle

The sensor applies infrared scattered light photometric technology in accordance with ISO 7027. When infrared light passes through the sample, suspended solids scatter the light. The scattered light intensity is detected by a dual-beam system and converted into a concentration value, ensuring accurate measurement independent of sample color.

Suspended Solids Sludge Sensor Installation & Maintenance

The sensor is designed for submersible installation and can be directly immersed in tanks, channels, or pipelines.
For applications with high fouling potential, the optional automatic cleaning scraper is recommended to reduce maintenance workload and ensure long-term measurement stability.

معلمة أجهزة الإرسال والاستشعار

المعلمة	المواصفات
نطاق القياس	0.01 – 45,000 mg/L / 0.01 – 120,000 mg/L
نطاق درجة الحرارة	0 – 45 °C
نطاق الضغط	≤ 0.4 MPa
دقة القياس	±5% FS
سرعة التدفق	≤ 2.5 m/s
إشارة الإخراج	RS485
مواد الإسكان	316L Stainless Steel + PVC
فئة الحماية	IP68
الأبعاد	Ø60 × 256 mm
طريقة التثبيت	Submersible
درجة الحرارة المحيطة	0 – 60 °C
الرطوبة المحيطة	< 90% RH
كابل الإشارة	10 m standard, customizable up to 100 m

إنسترافا OEM/ODM

أدوات موثوقة. حلول تناسب تطبيقك.

تركز إنسترافا على تقديم حلول صناعية موثوقة من خلال المنتجات المنتقاة بعناية والتحسين القائم على التطبيقات والتخصيص المرن. نختار الأدوات التي أثبتت كفاءتها من الشركات المصنعة الموثوق بها لضمان جودة متسقة، ونعمل على تحسين الحلول بناءً على ظروف العمل الحقيقية لحل التحديات العملية، ونوفر تكوينات مصممة خصيصًا لتلبية احتياجات التطبيقات المحددة.

تساعد Instrava العملاء على تقليل المخاطر وتحسين الكفاءة وتحقيق نتائج يمكن الاعتماد عليها في البيئات الصناعية المعقدة من خلال الجمع بين الخبرة في الاختيار وفهم التطبيقات.

توصيات المنتجات ذات الصلة

جهاز إرسال ضغط ذكي لصناعة معالجة المياه، يتميز بإشارات رقمية بالكامل وشاشة LCD محلية عالية الوضوح.

What is the difference between SS and MLSS measurement in wastewater treatment?

SS (Suspended Solids) generally refers to solids in water or effluent, while MLSS (Mixed Liquor Suspended Solids) is specific to activated sludge concentration in aeration tanks. This sensor supports both applications by measuring suspended solids using infrared scattering technology.

What factors most commonly affect the accuracy of online sludge concentration measurement?

Accuracy can be affected by sludge particle size, air bubbles, flow turbulence, sensor fouling, and improper installation depth. Proper installation and routine cleaning significantly reduce these effects.

How often does the SS / MLSS sensor require maintenance?

Maintenance frequency depends on sludge characteristics. In most wastewater plants, cleaning every 1–4 weeks is recommended. The optional automatic cleaning scraper can greatly extend maintenance intervals.

Can the sensor be used in high-concentration sludge environments?

Yes. The sensor supports measurement ranges up to 120,000 mg/L, making it suitable for high-concentration sludge zones such as aeration tanks, return sludge lines, and thickening processes.

How does ISO 7027 technology reduce measurement errors?

SO 7027 infrared scattered light technology minimizes the influence of sample color and ambient light, ensuring consistent and reliable sludge concentration measurement even in dark or colored wastewater.

What is the recommended installation method for stable online measurement?

Submersible installation in areas with stable flow and representative sludge mixing is recommended. Avoid installation near aerators, in dead zones, or areas with excessive turbulence to ensure accurate and stable readings.