The OPM 300 SERIES system is designed for online measurement of Chemical Oxygen Demand (COD), Total Suspended Solids (TSS), and Biochemical Oxygen Demand (BODc). The OPRUSS Spectrophotometer is a compact yet accurate device suitable for various water types. Utilising advanced technology, it scans ultraviolet and visible light to detect contaminants.

Key Benefits:
● No reagents required.
● Suitable for outdoor use.
● Handles treated wastewater with variable conditions and high interference.
● Provides precise measurements for effluent and sewage treatment plant water.

● Continuous operating application
● Non-interruptible stable output
● Adaptability to AUTOMATICA Two Way Diagnostics
● Ultra-efficient power consumption
● Spectral response range: 190 nm to 1100 nm
● High sensitivity across the complete spectral range
● Superiorly accurate performance
● Capability to transmit background data for interference cancellation

Measurement Method
UV + VIS Spectrophotometer (Dual Beam Absorption Spectrophotometry)
● Turbidity compensation at overlapping spectral bandwidth

Measured Parameters
● COD
● BODc
● TSS

Measurement Range with Maximum Accuracy
● COD: 0-3500 mg/l
● BODc: 0-3500 mg/l
● TSS: 0-2000 mg/l

Measurement Accuracy
● Within ± 2% of full scale

Measurement Repeatability
● Within ± 2% of full scale

Measurement Linearity
● Within ± 2% of full scale

Measurement Stability
● Within ± 2% of full scale

Measurement Interval
● T90 Data output within 1 minute

Resolution
● 0.1 mg/L

Calibration
● Multi-point based automatic calibration
● Standard calibration as per factory setting
● Local calibration for adaptive environments with respect to organic and inorganic proportions

Ingress Protection Class
● IP68 for Spectrophotometer analyser

Cleaning Method
● ACSC Cleaning
● Scheduled interval settable every 05 – 1200 minutes
● Can be triggered remotely

Material of Construction
● Titanium, POM, SS316L

Cable Length
● 10 m standard (expandable)

Sample Operating Pressure & Flow Rate
● 1 – 12 Bar / 0.5 – 20 LPM

Output
● RS485 from OPRUSS OPM100 Controller system

Sensor Diagnostics
● Sensor perform periodic self-tests to verify they are functioning correctly. This include checking internal temperature, ACSC Cleaning Functionality and connectivity.
● Ambient Temperature: 0-80 ̊C (subjected to non-freezing sample condition)
● Ambient Humidity: 90% RH
● Maximum Pressure: 12 bars
● Resistant to corrosive applications

Secondary Data
● Temperature compensation
● Lamp health
● Cleaning system health, and more

Construction
● Compatible for in-situ and extractive installation

Color/Finish
● Standard integral material finish as per MOC

Power Supply
● 12V DC

• Shell made of non-corrosive POM material.
• Built-in interference cancellation.
• Adaptability to different types of water.
• Grill casing for protection in surface water.
• Precise measurements without needing calibration.
• Maintenance-free cleaning system with self-cleaning features.
• Reliable performance in tough conditions

Self-cleaning mechanisms prevent fouling from biofilm or particles, ensuring reliable performance in tough environments.

Adjustable cleaning frequency.

Systems can be installed in-place or as extractive types.

• Plants that treat sewage
• Plants that treat wastewater
• Plants that clean water
• Monitoring lakes and rivers
• Plants that process chemicals