GreenPrima PROCO N5000 Online Total Iron Analyzer for Wastewater and Effluent

Overview

The GreenPrima PROCO N5000 is a fully automated, laboratory-grade online total iron analyzer engineered for continuous, real-time monitoring of dissolved and particulate iron species (Fe²⁺ and Fe³⁺) in complex aqueous matrices—including municipal wastewater, industrial effluents, treated drinking water, and process cooling water. It operates on the principle of colorimetric spectrophotometry, leveraging two chemically selective reaction pathways: the formation of the highly stable iron(II)-1,10-phenanthroline complex for higher concentration ranges (0.1–20.0 ppm), and the iron(II)-pyridyltriazine complex for trace-level detection (10–500 ppb). The instrument integrates a microprocessor-controlled fluidic system with precise peristaltic metering, sequential reagent injection, integrated optical detection (LED-based photometer with fixed-wavelength optics), and automatic zero-point drift compensation—ensuring long-term measurement stability without manual recalibration. Designed for unattended operation in harsh industrial environments, the PROCO N5000 meets the functional requirements of ISO 15586, ASTM D1068 (Standard Test Methods for Iron in Water), and supports compliance with EU Drinking Water Directive (2020/2184) and US EPA Method 365.2 for total iron quantification.

Key Features

• Fully autonomous operation with built-in self-diagnostic routines and automatic zero-point drift correction
• Dual-range measurement capability: 10–500 ppb (low range) and 0.1–20.0 ppm (high range), selectable via software configuration
• Intuitive 240 × 128 pixel resistive touchscreen interface with multilingual menu support (English, German, French, Spanish)
• User-configurable alarm thresholds and limit setpoints with relay outputs (3× isolated SPST relays: alarm, limit, analysis status)
• Programmable 0/4–20 mA analog output (500 Ω load max), compliant with IEC 61000-6-2/6-4 for industrial EMC environments
• Adjustable analysis cycle: 4–7 minutes including sample aspiration, reagent addition, reaction, photometric readout, and full system flush
• External start/stop control via dry-contact input (18 V DC, ~4 mA pull-up)
• Wide power input tolerance: 110–230 V AC, 50/60 Hz; typical power consumption: 16 VA
• IP65-rated enclosure (640 × 315 × 190 mm H×W×D) with ring-terminal electrical connections for field integration
• No routine calibration required—relying on factory-characterized reagent batches and optical reference stability

Sample Compatibility & Compliance

The PROCO N5000 is validated for use with clarified, low-turbidity samples (pH 6.0–8.0) under nominal operating pressure (0.1–10 bar) and temperature (5–30 °C). Sample volume per analysis is 25 mL (excluding rinse cycles). Particulate matter must be removed upstream via inline filtration (e.g., 5 µm cartridge filter) to prevent flow path clogging. Reagent kits (Fe1001/Fe1002/Fe1003 or Fe2001) are supplied pre-formulated and certified for shelf life up to 12 months at 5–25 °C. Each analysis consumes ≤0.8 mL total reagent volume. The analyzer conforms to EN 61326-1 (electromagnetic compatibility for measurement equipment) and supports audit-ready data integrity when paired with optional USB data logging (FAT32-formatted drive, timestamped CSV export). Its operational design aligns with GLP principles and facilitates FDA 21 CFR Part 11 readiness through external SCADA integration.

Software & Data Management

The embedded firmware supports local parameter configuration, event logging (including error codes, reagent depletion warnings, and maintenance alerts), and time-stamped measurement history (≥30 days internal buffer). USB data export enables offline trend analysis in Excel or LIMS-compatible formats. Optional Modbus RTU (RS-485) communication module allows seamless integration into plant-wide DCS or SCADA systems. All analog and relay outputs are assignable per user-defined logic—enabling direct linkage to dosing pumps or PLC interlocks for iron-based coagulant control loops. Firmware updates are performed via USB or secure remote access (requires customer-configured network isolation).

Applications

• Real-time monitoring of total iron in secondary clarifier effluent to optimize ferric chloride dosing in biological nutrient removal plants
• Compliance tracking for iron discharge limits in industrial pretreatment systems (e.g., metal finishing, power generation, textile manufacturing)
• Feedwater quality assurance in membrane desalination pre-treatment where iron fouling risk exceeds 0.1 ppm
• Corrosion product surveillance in closed-loop cooling water systems using ferrous ion trends as early indicators of pipe degradation
• Validation of iron removal efficiency across greensand or manganese dioxide media filters in potable water treatment

FAQ

What iron species does the PROCO N5000 measure?
It measures total filterable iron (Fe²⁺ and Fe³⁺) after acid digestion and reduction—reporting results as elemental Fe in ppb or ppm.
Is sample filtration required prior to analysis?
Yes—samples must be filtered to ≤5 µm to prevent particulate interference and protect the fluidic manifold.
How often do reagents need replacement?
Fe1001/Fe1002/Fe1003 kits support ~300 analyses; Fe2001 supports ~925 analyses—reagent level monitoring is displayed on-screen with predictive low-level alerts.
Can the analyzer operate in outdoor enclosures?
Yes—its IP65 rating and operating temperature range (5–45 °C ambient) permit installation in ventilated kiosks or weatherproof cabinets without climate control.
Does it comply with regulatory reporting standards?
Data output meets ISO/IEC 17025 documentation requirements when used with validated reagents and maintained per GreenPrima’s scheduled service protocol (biannual verification recommended).