GreenPrima PROCON2000 Online Colorimeter

Overview

The GreenPrima PROCON2000 Online Colorimeter is a high-precision, continuous-monitoring analytical instrument engineered for real-time color assessment of aqueous matrices using UV-VIS absorption spectroscopy. It operates on the principle of spectrophotometric measurement at defined wavelengths (typically 430 nm and 525 nm, per APHA/Hazen/Pt-Co standard methodology), quantifying dissolved and colloidal color-causing substances—including humic/fulvic acids, iron/manganese complexes, industrial dyes, and oxidized organic compounds. Designed for unattended operation in demanding environmental and industrial settings, the PROCON2000 delivers trace-level sensitivity and metrological stability without chemical reagents or consumables. Its deployment spans municipal drinking water treatment plants, wastewater effluent compliance monitoring, seawater desalination pre-treatment, surface water quality networks, and process-critical sectors such as pulp & paper, textile dyeing, and pharmaceutical manufacturing—where color serves both as a regulatory parameter (e.g., WHO Guidelines, EU Drinking Water Directive 2020/2184) and a key process indicator.

Key Features

• True online operation with three configurable measurement modes: manual-triggered, time-scheduled, and event-driven periodic acquisition
• Reagent-free analysis—eliminates chemical waste, operator exposure risk, and calibration drift associated with wet-chemistry methods
• Optical path integrity maintained via quartz flow cell and self-cleaning fluidic architecture; immune to turbidity interference from suspended solids or biofilm buildup
• Extended service life: LED light source rated for >10 years (typical operational lifetime under continuous use)
• Sub-5-second measurement cycle with full auto-sequence execution: automatic zeroing, reference calibration, sample measurement, flow-cell rinsing, and system diagnostics
• Integrated pre-treatment module with passive filtration and air-bubble rejection—designed for zero-maintenance operation over extended intervals
• Rugged stainless-steel (1.4435 / SS316L) enclosure rated IP65, suitable for outdoor or hazardous area installation (ATEX Zone 1/2 optional)

Sample Compatibility & Compliance

The PROCON2000 is validated for direct analysis of raw and treated waters across a broad physicochemical range: pH 4–11, conductivity up to 5 mS/cm, and suspended solids ≤100 mg/L. Contact-wetted materials include fused silica (flow cell), polypropylene (manifold), FPM fluoroelastomer (seals), 316L stainless steel (housing), and borosilicate glass (optical windows)—ensuring compatibility with chlorinated, ozonated, and low-pH industrial streams. The instrument conforms to ISO 7887:2012 (Water quality — Determination of colour), ASTM D1209 (Standard Test Method for Color of Clear Liquids), and supports audit-ready data capture aligned with GLP and GMP frameworks. Optional 21 CFR Part 11-compliant software modules enable electronic signatures, user access control, and immutable audit trails for regulated environments.

Software & Data Management

Embedded firmware supports dual-mode data handling: local storage on 8 GB industrial-grade SD card (retaining ≥12 months of 1-minute interval records) and real-time transmission via RS485 Modbus RTU/ASCII (slave or master configuration). Analog output (4–20 mA, isolated, <0.5% FS accuracy) interfaces seamlessly with SCADA, DCS, or PLC systems. USB port enables secure firmware updates and batch export of CSV-formatted datasets. The 8.5-inch TFT color touchscreen (800 × 480 resolution, LED-backlit) provides intuitive navigation through live spectra visualization, trend graphs, maintenance logs, and diagnostic status screens—all accessible without external software. Configuration parameters, alarm thresholds, and calibration history are password-protected and timestamped.

Applications

• Drinking water utilities: Early detection of colored organic breakthrough post-coagulation or during reservoir turnover events
• Wastewater treatment plants: Effluent compliance monitoring against discharge permits (e.g., EPA NPDES, EU Urban Wastewater Treatment Directive)
• Pulp & paper mills: Real-time tracking of lignin-derived color in bleach plant filtrates and condensates
• Textile finishing facilities: In-line verification of dye bath exhaustion efficiency and rinse water clarity
• Pharmaceutical water systems: USP Total Organic Carbon (TOC) surrogate validation where color correlates with oxidation-resistant organics
• Coastal monitoring networks: Discrimination between algal pigment interference and anthropogenic colorants in estuarine systems

FAQ

What color scales does the PROCON2000 support?
The instrument reports results in Pt-Co (Hazen) units by default, with factory-configured ranges of 0–100 Pt-Co and 0–2000 Pt-Co; custom scaling (e.g., ADMI, Gardner) is available upon request.
Does the analyzer require periodic lamp replacement?
No—solid-state UV-VIS LEDs are rated for >10 years of continuous operation; no scheduled lamp replacement is necessary.
Can it operate under variable pressure or flow conditions?
Yes; the system accepts inlet pressures up to 2 bar and accommodates sample flow rates from 0 to 2 L/min with integrated flow regulation and pressure relief.
Is remote diagnostics supported?
Yes—Modbus-enabled registers provide real-time access to optical intensity, temperature compensation values, cleaning cycle status, and error codes for predictive maintenance planning.
How is zero calibration performed?
Automatic zeroing uses deionized water or process-specific blank delivered via the integrated rinse circuit; no manual intervention or external standards are required.