GreenPrima PROCON2000 Colorimeter

Overview

The GreenPrima PROCON2000 Colorimeter is a high-precision, online optical instrument engineered for continuous and laboratory-grade measurement of color intensity in aqueous media using UV-VIS absorption spectroscopy. It operates on the principle of spectrophotometric analysis at standardized wavelengths (typically 430 nm, 520 nm, and 620 nm), conforming to internationally recognized colorimetric scales—including Pt-Co (Hazen), APHA, and Gardner—enabling traceable, repeatable quantification of yellowish-to-amber hue development in liquids. Designed for permanent installation or portable deployment, the PROCON2000 delivers real-time color assessment without chemical reagents, making it suitable for unattended operation in municipal wastewater treatment plants, industrial effluent streams, potable water distribution systems, seawater desalination pre-treatment monitoring, and surface water quality networks.

Key Features

• Ultra-low detection limit optimized for compliance with stringent regulatory thresholds (e.g., EPA Method 8027, ISO 7887:2012)
• Flexible operational modes: manual spot measurement, programmable timed acquisition, and fully autonomous cyclic monitoring
• Zero-reagent methodology eliminates hazardous waste generation and reduces lifecycle operational costs
• Optical path integrity maintained via quartz flow cell and FPM fluorocarbon seals; immune to fouling from suspended solids or colloidal sludge
• Measurement cycle completed in under 5 seconds, supporting rapid process feedback loops
• Integrated self-management suite: automatic zero-point calibration, reference-based span validation, in-situ optical cleaning, fault diagnostics, and power-loss recovery
• Maintenance-free sample conditioning module with no moving parts, filters, or consumables requiring scheduled replacement
• Long-life pulsed tungsten-halogen light source (>10 years nominal lifetime, >50,000 hours MTBF)

Sample Compatibility & Compliance

The PROCON2000 accommodates a broad range of liquid matrices—including clarified and turbid waters, low-viscosity industrial process streams, and saline solutions—with minimal pre-treatment. Its wetted materials (quartz optical window, polypropylene housing, FPM elastomers, SS 316L manifold, borosilicate glass components) ensure chemical resistance across pH 2–12 and compatibility with oxidizing agents (e.g., chlorine, ozone). The system meets IP65 ingress protection for outdoor cabinet mounting and offers optional ATEX-certified variants for Zone 1/Zone 2 hazardous locations. All measurement protocols align with ASTM D1209 (Pt-Co scale), ISO 6271 (APHA), and EN ISO 7887-2 for consistency in regulatory reporting and third-party audit readiness.

Software & Data Management

The embedded controller features an 8.5-inch TFT color touchscreen (800 × 480 resolution) with intuitive HMI navigation and multilingual UI support. Internal 8 GB SD card logs timestamped measurements with full metadata (temperature, pressure, flow rate, diagnostic flags). Data export is supported via USB mass storage or Modbus RTU over RS485 (slave/master configurable). Analog 4–20 mA output provides galvanically isolated, NIST-traceable signal transmission compatible with SCADA, DCS, and PLC systems. Optional firmware upgrades enable GLP-compliant audit trails, user-access level management, and 21 CFR Part 11–ready electronic signatures when paired with validated networked data servers.

Applications

• Real-time color trending in activated sludge clarifiers and tertiary filtration units
• Effluent compliance monitoring for pulp & paper mills (kraft liquor carryover, bleach plant discharge)
• Quality assurance in textile dye-house rinse water recycling loops
• Early-warning detection of organic contamination in drinking water distribution networks
• Process optimization in pharmaceutical manufacturing (solvent clarity verification, API crystallization endpoint)
• Environmental surveillance of riverine and estuarine systems impacted by agricultural runoff or urban stormwater

FAQ

What color scales does the PROCON2000 support out-of-the-box?

The instrument is factory-configured for Pt-Co (Hazen) and APHA scales, with optional firmware modules available for Gardner, Saybolt, and custom user-defined spectral weighting functions.
Can the PROCON2000 operate in high-turbidity samples without filtration?

Yes—the optical design incorporates dual-beam compensation and advanced scatter correction algorithms, enabling reliable color measurement in samples with turbidity up to 400 NTU without inline filtration.
Is remote configuration and diagnostics supported?

Remote access is enabled via Modbus TCP/IP (optional Ethernet module) or secure SSH tunneling through industrial firewalls, allowing firmware updates, parameter adjustment, and live diagnostic viewing under IT-managed infrastructure.
How often is calibration required?

Factory calibration remains stable for ≥12 months under typical operating conditions; annual verification using certified Pt-Co standards (e.g., Starna Cells) is recommended for ISO/IEC 17025-accredited laboratories.
Does the system comply with cybersecurity standards for OT environments?

Firmware v3.2+ includes TLS 1.2 encryption for web interface sessions, role-based authentication, and disabled default credentials—fully aligned with IEC 62443-3-3 Level 1 requirements for industrial control systems.