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Online TOC Analyzer

Reagent-free UV254 online organic-load analyzer for continuous COD, BOD and TOC monitoring, with automatic cleaning, MODBUS RS485 and IP68 sensor protection.

Online TOC Analyzer

HydroMetric online organic-load analyzer uses UV254 spectrometric absorption to continuously track soluble organic matter and report TOC together with COD and BOD indicators. The direct-immersion, reagent-free design is intended for wastewater treatment, industrial effluent and surface-water monitoring where fast continuous measurements and low routine maintenance are required.

Technical Specifications

Measurement principle UV absorption at 254 nm (SAC254), KHP calibration
TOC ranges 0–800 mg/L (2 mm path); 0–400 mg/L (5 mm); 0–36 mg/L (50 mm)
COD ranges 0–2000 mg/L (2 mm); 0–1000 mg/L (5 mm); 0–90 mg/L (50 mm)
BOD ranges 0–1500 mg/L (2 mm); 0–750 mg/L (5 mm); 0–60 mg/L (50 mm)
Accuracy ±5%
Measurement interval Minimum 1 minute
Pressure ≤0.4 MPa
Sensor body SUS316L
Power 9–36 VDC or 85–500 VAC, 50/60 Hz
Outputs 3 × 4–20 mA; 3 configurable relays
Communication MODBUS RS485
Operating temperature 0–45 °C
Sensor protection IP68 / NEMA 6P
Sensor dimensions Ø69 × 380 mm
Cable 10 m standard; extendable to 100 m

Applications

Suitable for continuous organic-load monitoring at wastewater-treatment influent and effluent points, industrial wastewater discharge, surface water and other long-term water-quality stations.

Installation & Integration

The immersion sensor eliminates routine sample transport and chemical reagent handling. Automatic optical-window cleaning helps reduce fouling. MODBUS RS485 and analog outputs support integration with PLC, SCADA, data loggers and remote monitoring platforms.

Selection Guidance

Select the optical path/range according to expected organic loading. For an RFQ, provide the target TOC/COD/BOD range, water type, installation point, cable length, available power and required communications so the configuration can be matched to the project.

Request a Quote

Send your measurement range, process conditions and integration requirements for configuration review and a project quotation. Email sales@waterqualityanalyzer.com.

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