Description
Product Overview
Blue Dragon Model C610OIW Online Oil-in-Water Analyzer
The Blue Dragon Model C610OIW is a complete online analyzer system designed for continuous ppm-level monitoring of oil contamination in industrial water and wastewater streams. The system combines a digital controller with a rugged self-wiping ultraviolet fluorescence sensor to provide real-time measurement, local display, alarm functions, analog output, and digital plant communication.
The C610OIW is designed for produced water, refinery wastewater, petrochemical effluent, industrial wastewater, process water, separator monitoring, and oil-contamination applications where rapid response and continuous process visibility are required.
0–150 ppm
UV Fluorescence
Self-Wiping Sensor
T90 < 50 Seconds
4–20 mA & Modbus RTU
Key Features
Continuous oil-in-water monitoring for industrial processes.
UV Fluorescence Detection
The sensor uses approximately 365 nm excitation and 465 nm fluorescence emission for ppm-level monitoring of oil-related compounds in industrial water.
0–150 ppm Measurement Range
Designed for continuous ppm-level monitoring of produced water, refinery wastewater, industrial effluent, and other oil-containing water streams.
Integrated Self-Wiping Sensor
Automatic optical-window cleaning helps reduce fouling and supports stable operation in demanding industrial water applications.
Fast Response
A T90 response time of less than 50 seconds supports rapid detection of oil leakage, separator upsets, and process changes.
Flexible Installation
The IP68 sensor can be installed directly by immersion or inside an optional overflow-style flow-through tank.
Plant Integration
The controller provides 4–20 mA output, RS485 Modbus RTU communication, and two relays for connection to PLC, SCADA, DCS, and alarm systems.
Monitoring Capability
Real-time oil contamination visibility.
0–150 ppm
Standard measurement range
0.01 ppm
Displayed resolution
T90 < 50 s
Rapid response
Continuous
Online trend monitoring
Technology Overview
UV fluorescence oil-in-water measurement.
The sensor illuminates the water sample with ultraviolet light at approximately 365 nm. Fluorescent oil-related compounds emit light at approximately 465 nm, and the optical detector measures the resulting fluorescence intensity.
The controller processes the sensor signal, applies the configured calibration, displays the oil-in-water value in ppm, and transmits the measurement to the plant control system.
Because different oil types and water matrices may produce different fluorescence responses, field calibration using a representative process sample is recommended when site-specific correlation is required.
Applications
Designed for produced water, wastewater, and industrial effluent monitoring.
Produced Water
Refinery Wastewater
Petrochemical Effluent
Industrial Wastewater
Oil-Water Separators
Process Water
Discharge Monitoring
Oil Contamination Alerts
Water Treatment
Environmental Outfalls
Installation Options
Flexible deployment for industrial sites.
Immersion Installation
The IP68 sensor may be installed directly in tanks, channels, basins, or suitable process-water streams.
Flow-Through Tank
An optional overflow-style flow-through tank provides controlled bypass-sample measurement where direct immersion is not practical.
Industrial Instrument Box
The controller and optional flow-through components may be installed inside a protected instrument enclosure for outdoor or harsher installations.
Self-Wiping Optical Sensor
Automatic cleaning for continuous monitoring.
The integrated mechanical wiper helps keep the optical measurement window clear during continuous operation. The standard cleaning interval is 30 minutes and can be adjusted between 10 and 60 minutes according to site fouling conditions.
The internal wiping motor has an expected service life exceeding five years under normal operating conditions. The nitrile-rubber wiping surface is a consumable component and should normally be inspected and replaced every three to six months, depending on the application.
Technical Specifications
Standard C610OIW configuration.
| Model | C610OIW |
|---|---|
| Analyzer type | Online oil-in-water analyzer |
| Measurement principle | Ultraviolet fluorescence |
| Measurement range | 0–150 ppm |
| Excitation wavelength | Approximately 365 nm |
| Emission wavelength | Approximately 465 nm |
| Resolution | 0.01 ppm |
| Accuracy | ±5% of measured value under quinine sulfate factory calibration conditions |
| Linearity | R² > 0.999 under reference calibration conditions |
| Response time | T90 < 50 seconds |
| Calibration | Zero-point, one-point, or two-point calibration |
| Sensor body | 316L stainless steel; application-specific materials available for high-salinity service |
| Sensor protection | IP68 |
| Sensor temperature | 0–50°C |
| Maximum immersion depth | 30 m |
| Sensor pressure rating | Up to 4 bar |
| Sensor dimensions | Ø45 × 190.8 mm |
| Sensor cable | 10 m standard; customizable |
| Cleaning interval | 30 minutes default; adjustable from 10–60 minutes |
| Controller dimensions | 144 × 144 × 115 mm |
| Controller display | 77 × 53 mm |
| Controller enclosure | ABS, IP55 |
| Controller power | 110–220 VAC |
| Outputs | 4–20 mA, RS485 Modbus RTU, and two relays |
| Controller mounting | Wall or panel mounting |
Specifications are based on the standard configuration and may vary according to oil type, sample composition, installation conditions, selected materials, calibration method, and project requirements.
Application Guidance
Site calibration supports better process correlation.
UV fluorescence response depends on oil composition and the water matrix. Crude oils, heavy oils, refined oils, process chemicals, and additives may produce different fluorescence responses at the same actual oil concentration.
Site calibration using a representative process sample is recommended when site-specific measurement correlation is required. One-point calibration is generally suitable for routine field adjustment, while two-point calibration may be used with prepared standard solutions.
High suspended-solids concentrations, bubbles, foam, unstable oil-water mixtures, organic solvents, and severe optical fouling can affect performance. Excessively high turbidity, particularly above approximately 500 NTU, is not recommended without an application review.
The C610OIW is designed for continuous online monitoring, process trending, and contamination alerts. It is not a certified laboratory reference method and should not be represented as a replacement for an applicable regulatory laboratory procedure.
Benefits
Continuous monitoring supports faster operational decisions.
- Continuous process visibility: Provides real-time oil-in-water trends between laboratory sampling intervals.
- Rapid contamination alerts: Supports faster identification of oil leakage, separator problems, and process upsets.
- Reduced routine manual sampling: Helps operators monitor process changes continuously rather than relying only on periodic grab samples.
- Reduced optical fouling: The self-wiping sensor helps maintain a clean measurement window.
- Flexible installation: Supports immersion, flow-through, and optional instrument-box configurations.
- Plant-system connectivity: Integrates with PLC, SCADA, DCS, recorders, and alarm systems.
- Site-specific calibration: Allows measurement response to be adjusted using representative process samples.
Industries Served
Oil-in-water monitoring for industrial and environmental sectors.
Oil & Gas Production
Petroleum Refining
Petrochemical Processing
Industrial Wastewater
Marine & Offshore
Power Generation
Environmental Monitoring
Water Treatment & Reuse
Need application guidance or a project quotation?
Contact Blue Dragon Technology to discuss your oil type, water matrix, concentration range, turbidity, installation conditions, calibration requirements, flow-through configuration, instrument enclosure, and plant integration requirements.
Product Documents
View the product sheet and user manual.
Review detailed specifications, application guidance, installation information, calibration procedures, operating instructions, maintenance requirements, and technical documentation for the Blue Dragon Model C610OIW Online Oil-in-Water Analyzer.
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