GreenPrima PROCON7000 Online Oil-in-Water Analyzer

Overview

The GreenPrima PROCON7000 Online Oil-in-Water Analyzer is a robust, field-deployable instrument engineered for continuous, real-time monitoring of hydrocarbon contamination in aqueous process streams. It employs a fluorescence-based optical detection principle—optimized for mineral oil, diesel, and lubricant derivatives—where excitation at specific UV wavelengths induces characteristic emission signals proportional to oil concentration. Unlike gravimetric or solvent-extraction methods, this non-invasive, reagent-free approach eliminates consumables, reduces maintenance intervals, and avoids sample alteration. Designed for integration into closed-loop cooling water systems, the PROCON7000 delivers stable performance under variable flow, pressure, and temperature conditions typical of power generation, refinery utility networks, and marine engine cooling circuits. Its measurement range of 0–99 ppm and stated accuracy of ±2 ppm meet routine surveillance requirements for early leak detection in heat exchangers, condensate return lines, and wastewater pre-treatment stages—supporting ISO 8502-9 (water quality for steam generation) and ASTM D3921 (oil-in-water standard practice) compliance frameworks.

Key Features

• Automatic self-calibration and drift compensation ensure long-term measurement stability without manual intervention.
• Configurable alarm logic with two independent relay outputs: Alarm 1 (0–60 s delay) and Alarm 2 (10–240 s delay), both programmable across 1–98 ppm thresholds.
• Intuitive 240×128-pixel resistive touchscreen interface with multilingual menu navigation and real-time trend visualization.
• Flexible analog output configuration: selectable 0/4–20 mA (min. 820 Ω load) or 0–5 V / 1–5 V DC (min. 50 kΩ load) for PLC/DCS integration.
• External control capability via dry-contact inputs for remote start/stop of analysis cycles—enabling synchronization with pump schedules or sampling valves.
• IP55-rated enclosure with industrial-grade terminal block for alarm relays, analog outputs, and external trigger signals—suitable for indoor control rooms and semi-outdoor utility corridors.
• No periodic recalibration required; factory calibration traceable to NIST-traceable reference standards is retained over operational lifetime.

Sample Compatibility & Compliance

The PROCON7000 accommodates a broad range of aqueous matrices including freshwater coolant, boiler condensate (when paired with optional inline cooler), treated industrial effluent, and groundwater discharge streams. It tolerates suspended solids up to 50 ppm without signal interference—validated per ISO 7027 for turbidity resilience—and maintains accuracy across pH 5.5–9.0 and conductivity < 2 mS/cm. The analyzer complies with EN 61010-1 for electrical safety and meets EMC immunity requirements per IEC 61000-4-2/3/4/6. While not certified for SIL-rated safety loops, its deterministic response time (< 30 s from sample introduction to validated reading) supports preventive maintenance protocols aligned with API RP 500 and IEC 61511 Level 1 risk mitigation strategies.

Software & Data Management

Data logging is performed onboard with timestamped readings stored in non-volatile memory (10,000-point capacity). Optional USB data export enables CSV-formatted retrieval for trend analysis in Excel or LIMS environments. The device does not include embedded Ethernet or cloud connectivity; however, its 4–20 mA output is compatible with third-party SCADA historians supporting Modbus RTU over RS-485 (via external converter). Audit trails—including alarm activation timestamps, parameter changes, and system diagnostics—are retained locally and accessible via service mode. No FDA 21 CFR Part 11 functionality is implemented, as the unit is intended for operational monitoring—not regulated pharmaceutical or clinical use.

Applications

• Leak detection in lube oil coolers and jacket water heat exchangers within gas turbine and reciprocating engine installations.
• Continuous surveillance of boiler feedwater and condensate return systems to prevent oil-induced corrosion and carryover.
• Pre-discharge compliance verification for industrial wastewater containing hydrocarbon residuals from machining, metalworking, or coating operations.
• Groundwater monitoring at fuel storage sites and remediation zones where low-level petroleum hydrocarbon migration must be quantified against local regulatory thresholds (e.g., EPA Method 1664B equivalents).
• Utility water loop integrity assurance in combined-cycle power plants and offshore platforms operating under API RP 14C guidelines.

FAQ

What detection method does the PROCON7000 use, and why is it suitable for online applications?

It utilizes UV-induced fluorescence detection optimized for aromatic hydrocarbons in oil—offering high selectivity, zero reagent consumption, and minimal fouling susceptibility compared to IR or gravimetric alternatives.
Can the analyzer operate without temperature control of the sample stream?

Yes—calibrated for 1–40 °C sample temperature range; built-in thermal compensation ensures consistent response across this span without external chillers or heaters.
Is the 4–20 mA output intrinsically safe for hazardous area installation?

No—the unit carries IP55 rating and is rated for Zone 2/Class I Div 2 environments only when installed in ventilated enclosures; intrinsic safety requires external barriers per IEC 60079-11.
How frequently does the system require maintenance or cleaning?

Optical path inspection is recommended every 6 months; quartz flow cell cleaning is typically needed only if sample contains >50 ppm particulates—verified via visual inspection port.
Does the PROCON7000 support MODBUS or other digital communication protocols natively?

No native digital interface is provided; analog outputs are primary; RS-485 Modbus RTU integration requires an external signal converter.