GreenPrima PROCON7000 Online Oil-in-Water Analyzer

Overview

The GreenPrima PROCON7000 Online Oil-in-Water Analyzer is an industrial-grade, real-time monitoring instrument engineered for continuous, non-invasive quantification of hydrocarbon contaminants—including mineral oils, lubricants, and diesel-range organics—in aqueous process streams. Unlike extractive methods requiring solvents or sample conditioning, the PROCON7000 employs a calibrated fluorescence detection principle optimized for low-concentration oil-in-water measurement (0–99 ppm). Its optical sensor operates on the selective excitation and emission response of aromatic hydrocarbons under UV-Vis illumination, delivering stable, interference-resistant readings without chemical reagents or consumables. Designed specifically for demanding cooling water circuits—such as engine jacket water, boiler condensate return lines, and freshwater circulation systems—the analyzer meets operational requirements in power generation facilities, petrochemical refineries, marine propulsion plants, and centralized HVAC systems. The unit integrates seamlessly into existing PLC-controlled infrastructure and supports long-term unattended operation with built-in drift compensation and automated self-diagnostic routines.

Key Features

• True online, flow-through measurement with no sample extraction, filtration, or solvent use
• Automatic zero tracking and thermal drift compensation ensures measurement stability across ambient temperature fluctuations (1–60 °C)
• Configurable dual-stage alarm system with independently adjustable setpoints (1–98 ppm) and programmable delay timers (Alarm 1: 0–60 s; Alarm 2: 10–240 s)
• Intuitive 240 × 128 pixel resistive touchscreen interface with multilingual menu navigation and real-time trend visualization
• Flexible analog output configuration: isolated 0/4–20 mA (820 Ω min. load) and voltage outputs (0–5 V / 1–5 V DC, 50 kΩ min. load)
• Robust IP55-rated enclosure suitable for indoor industrial environments; optional IP65 external terminal box for relay and signal connections
• Programmable analysis interval (1–3600 seconds) and external start/stop trigger capability via dry-contact inputs
• No routine calibration required—factory-calibrated traceability to NIST-traceable oil standards (e.g., ISO 8754 mineral oil reference)
• USB port for local data logging (optional firmware module); supports CSV export for audit-ready reporting

Sample Compatibility & Compliance

The PROCON7000 is validated for use with clarified, low-turbidity water matrices including treated freshwater, closed-loop cooling water, boiler feedwater (with inline cooling accessory), and pre-treated industrial wastewater effluents. It exhibits minimal cross-sensitivity to common interferents such as humic substances, surfactants, and chlorinated disinfectants when operated within specified pH (6.0–9.0) and conductivity (<500 µS/cm) ranges. While not intended for raw sewage or highly emulsified oily wastewaters, it complies with key regulatory frameworks governing discharge monitoring: its measurement uncertainty budget aligns with ISO 9562 (petroleum hydrocarbons in water) and ASTM D7678 (standard test method for oil content in water by fluorescence). The device’s electrical design conforms to EN 61010-1 for safety and IEC 61000-6-2/6-4 for electromagnetic compatibility—supporting integration into facilities operating under ISO 14001 environmental management systems or EPA-regulated NPDES permit conditions.

Software & Data Management

Data integrity and traceability are maintained through embedded firmware that logs all critical events—including measurement timestamps, alarm activations, relay state changes, and diagnostic flags—with internal non-volatile memory retention for ≥30 days. Optional USB data capture enables periodic retrieval of time-stamped concentration records, system status logs, and calibration history. No proprietary software is required: exported CSV files are compatible with standard SCADA historian platforms (e.g., Ignition, Siemens Desigo, Rockwell FactoryTalk) and statistical process control (SPC) tools. Audit trail functionality satisfies GLP-aligned documentation requirements, while configurable user access levels (operator, technician, administrator) support role-based control in regulated environments. Firmware updates are delivered via secure HTTPS download and verified using SHA-256 checksum validation.

Applications

• Continuous monitoring of engine jacket cooling water in marine diesel propulsion systems and stationary generator sets
• Early leak detection in lubricating oil coolers serving turbines, compressors, and hydraulic systems
• Boiler condensate return line surveillance—when paired with an inline thermostatic cooler—to prevent oil-induced corrosion and carryover
• Pre-discharge verification of treated industrial wastewater prior to release into municipal sewers or surface water bodies
• Groundwater remediation site monitoring where low-level hydrocarbon plume migration must be tracked over extended durations
• Supporting predictive maintenance programs by correlating oil breakthrough events with equipment service intervals and vibration data

FAQ

Does the PROCON7000 require daily calibration or reagent replacement?
No. The analyzer performs automatic zero-reference correction during idle cycles and incorporates factory-applied photometric calibration traceable to certified oil standards. Routine recalibration is not necessary under normal operating conditions.

Can it measure emulsified or dissolved oil fractions?
The PROCON7000 detects total fluorescent hydrocarbons—including free, mechanically dispersed, and certain stable micro-emulsions—but does not differentiate between physical states. It is not designed for quantifying truly dissolved monoaromatics (e.g., benzene, toluene) per EPA Method 8015.

Is the unit suitable for outdoor installation?
The main analyzer housing is rated IP55 and intended for indoor, sheltered locations. For outdoor deployment, GreenPrima recommends mounting within a climate-controlled cabinet or using the optional IP65-rated external junction box for signal termination and relay interfacing.

What sample conditioning is required?
A particulate filter (50 µm recommended) upstream of the flow cell is advised to prevent fouling of the optical path. No deaeration, pH adjustment, or temperature stabilization beyond the specified 1–40 °C range is needed.

How is compliance with regulatory reporting ensured?
All measurement data includes embedded metadata (UTC timestamp, instrument ID, firmware version, alarm status). When integrated with a validated data acquisition system, the PROCON7000 supports 21 CFR Part 11-compliant electronic records when combined with appropriate access controls and audit trail configuration.