1. Product Overview
The Induskey INK328 is a high-range, industrial-grade self-cleaning TSS (Total Suspended Solids) sensor designed for continuous, in-line monitoring of suspended solids in water and wastewater applications. Based on ISO 7027-compliant infrared double-scattered light technology, it delivers accurate, color-independent measurements without any reagents. Equipped with an integrated self-cleaning brush, it effectively alleviates probe fouling and greatly reduces daily maintenance workload. Meanwhile, the RS485 MODBUS interface enables seamless integration with industrial control systems, ensuring stable and automatic long-term monitoring in harsh industrial water environments.
2. Sensing Technology & Self-Cleaning System
Sensing Technology
The sensor adopts the
ISO 7027 compliant infrared double-scattered light detection technology as its core sensing principle. An infrared light source emits a light beam into the measured fluid, and suspended particles in the water scatter the light at multiple angles. The built-in photodetector captures the scattered light intensity and converts it into electrical signals, which are then processed to output accurate TSS concentration values.
It is equipped with customized sapphire optical windows and professional optical filters, which can effectively resist ambient light interference and eliminate the impact of fluid color variations, ensuring stable and reliable measurement performance in complex water quality environments.
Self-Cleaning System
The INK328 is fitted with an integrated automatic self-cleaning brush system, which can periodically wipe the surface of the sapphire optical window. This system actively removes sediment, biofilm and microbial attachments on the optical surface, preventing probe fouling and light transmission attenuation. It effectively extends maintenance intervals, reduces equipment downtime and manual maintenance frequency, and guarantees consistent measurement accuracy even in high-turbidity and high-pollution working conditions.
3. Key Features & Competitive Advantages
Key Features
- Adopts ISO 7027 standard infrared double-scattered light technology, with internationally recognized measurement standards
- Ultra-wide measurement range of 0–50000 mg/L, suitable for high-concentration sludge and wastewater monitoring
- Built-in self-cleaning brush system to reduce probe fouling and manual maintenance
- Sapphire optical windows and filters, with strong anti-interference and corrosion resistance
- RS485 communication interface with MODBUS RTU protocol, compatible with PLC, SCADA and industrial IoT platforms
- Supports on-site one-point or two-point calibration, simplifying on-site commissioning and recalibration
- Robust POM + 316L stainless steel housing with IP68 ingress protection
- Low power consumption, compatible with wide-range DC 9–24V power supply
Competitive Advantages
- Wide Scenario Adaptability: The ultra-high measurement range breaks through the limitations of conventional TSS sensors, covering both conventional water quality and high-concentration sludge, slurry and high-turbidity wastewater scenarios, with strong universal applicability.
- Low Operation & Maintenance Cost: The automatic self-cleaning system greatly reduces manual cleaning, downtime and maintenance costs, solving the core pain points of industrial field operation and maintenance.
- Strong Environmental Resistance: IP68 protection level, corrosion-resistant housing and anti-interference optical design enable stable operation in harsh industrial underwater environments.
- Superior System Compatibility: Standard MODBUS RTU protocol realizes fast and barrier-free connection with mainstream industrial automation control systems, meeting intelligent monitoring needs.
- Reliable Data Accuracy: Color-independent measurement technology and standardized optical design ensure stable and traceable monitoring data, free from water color interference.
4. Technical Specifications
| Parameter |
Specification |
| Model |
Induskey INK328 |
| Product Type |
Self-cleaning TSS (Total Suspended Solids) Sensor |
| Measurement Principle |
Infrared Double-Scattered Light Method (ISO 7027 Compliant) |
| Measurement Range |
0–50000 mg/L |
| Accuracy |
±5% (depends on the homogeneity of the activated sludge) |
| Resolution |
0.1 mg/L |
| Operating Temperature |
0–50°C |
| Maximum Submersion Depth |
30 m |
| Communication Interface |
RS-485, MODBUS RTU Protocol |
| Power Supply |
DC 9–24V, >500 mA |
| Power Consumption |
0.2 W (non-wiping); 0.6 W (wiping) |
| Housing Material |
POM + 316L Stainless Steel |
| Sensor Dimensions |
Φ55 mm × 214 mm |
| Cable Length |
10 m (default), customizable |
| Calibration Method |
One-point or two-point calibration |
| Ingress Protection |
IP68 |
5. Applications
- Municipal wastewater treatment plants (activated sludge basins, return sludge monitoring)
- Industrial wastewater treatment (high-concentration sludge, chemical and food processing effluents)
- Mining and mineral processing wastewater management
- Pulp and paper manufacturing process water monitoring
- Desalination plant brine and concentrate monitoring
- Industrial sludge and slurry process control
- Environmental monitoring of high-turbidity surface water
- Food and beverage processing wastewater discharge compliance
