GreenPrima PROC ON2 00 0 Online Seawater Colorimeter
| Brand | GreenPrima |
|---|---|
| Origin | UK |
| Manufacturer Type | Manufacturer |
| Origin Category | Imported |
| Model | PROC ON2 00 0 |
| Price | Upon Request |
| Measurement Principle | UV-VIS Absorption Spectrophotometry |
| Detection Range | 0–100 Pt-Co and 0–2000 Pt-Co (customizable) |
| Accuracy | < ±5% F.S. |
| Repeatability | < ±5% F.S. |
| Response Time | < 5 s |
| Sample Flow Rate | 0–2 L/min |
| Max Operating Pressure | < 2 bar |
| Operating Temperature | 0–50 °C |
| Sample Volume per Measurement | < 100 mL |
| Wetted Materials | Quartz, Polypropylene, FPM Fluoroelastomer, SS 316L, Borosilicate Glass |
| Display | 8.5" TFT Color Touchscreen (800 × 480 px, LED backlight) |
| Data Storage | 8 GB SD card |
| Analog Output | 4–20 mA (isolated, ≤500 Ω load, accuracy < 0.5%) |
| Digital Communication | RS485 Modbus RTU (Slave/Master configurable) |
| Relay Outputs | Programmable (5 A NO / 3 A NC @ 277 VAC) |
| Power Supply | 100–240 VAC or 24 VDC, 50–60 Hz |
| Power Consumption | < 20 W |
| Enclosure | Wall-mounted stainless steel (EN 1.4435 / ASTM A240 S31603) |
| Dimensions (H×W×D) | 430 × 340 × 200 mm |
| Weight | < 14 kg |
| Ingress Protection | IP65 |
| Hazardous Area Certification | ATEX Zone 1/2 optional |
Overview
The GreenPrima PROC ON2 00 0 Online Seawater Colorimeter is an industrial-grade photometric analyzer engineered for continuous, reagent-free color assessment of saline and freshwater matrices using standardized UV-VIS absorption spectrophotometry. Unlike conventional colorimeters relying on filtered white light or RGB sensors, the PROC ON2 00 0 employs a stabilized deuterium-halogen dual-source optical system coupled with a high-resolution grating spectrometer (190–850 nm range), enabling true spectral absorbance profiling aligned with ASTM D1209, ISO 6271, and APHA/Pt-Co color scale definitions. Its design specifically addresses the optical challenges inherent in marine environments—such as high chloride ion concentration, suspended particulates, and biofouling susceptibility—through quartz flow cells, pressure-compensated sample handling, and dynamic baseline correction algorithms. The instrument delivers trace-level sensitivity (detection limit < 1 Pt-Co unit) while maintaining metrological integrity across salinities up to 45 ppt, making it suitable for coastal monitoring stations, desalination plant influent/effluent streams, offshore platform discharge compliance, and aquaculture water quality assurance.
Key Features
- Reagent-free operation: No chemical addition required; eliminates secondary waste generation and operator exposure risk.
- Multi-mode measurement scheduling: Supports manual-on-demand, programmable interval (1 min to 24 h), and event-triggered acquisition (e.g., flow-activated or alarm-initiated).
- Self-optimizing optical path: Integrated auto-zeroing via reference channel, temperature-stabilized lamp control, and real-time drift compensation ensure long-term signal stability.
- Low-maintenance architecture: Solid-state UV-VIS source with >10-year operational lifetime; no consumables, no filters, no purge gases.
- Fouling-resilient fluidics: Patented laminar-flow cell geometry with turbulent boundary layer suppression minimizes sediment adhesion; optional ultrasonic cleaning module available for high-turbidity applications.
- Full automation suite: Auto-calibration (using certified Pt-Co standards), auto-cleaning (pressurized rinse cycle), self-diagnostic routines, and graceful failover during power interruption.
- Robust mechanical construction: EN 1.4435 (SS 316L) enclosure rated IP65, compatible with marine splash zones and humid industrial settings; ATEX-certified variants support installation in classified hazardous areas (Zone 1/2).
Sample Compatibility & Compliance
The PROC ON2 00 0 is validated for direct online analysis of unfiltered seawater, brackish estuarine water, treated effluents, and process streams from desalination, pulp & paper, textile dyeing, and pharmaceutical manufacturing. All wetted components comply with USP Class VI and FDA 21 CFR 177.2440 for food-contact polymers (polypropylene, FPM), while quartz optical windows meet ISO 10110-7 surface quality specifications. The system supports GLP/GMP data integrity requirements through audit-trail-enabled firmware (time-stamped calibration logs, user-access records, measurement history with digital signatures). Measurement traceability is maintained to NIST-traceable Pt-Co reference standards (SRM 2134a/b), and output data conform to ISO/IEC 17025-compliant reporting templates.
Software & Data Management
Embedded firmware includes a web-accessible configuration interface (HTTPS/TLS 1.2) supporting remote parameter adjustment, firmware updates, and diagnostic telemetry. Local data storage (8 GB SD card) retains ≥12 months of 1-minute resolution time-series (absorbance spectra + derived Pt-Co values + status flags). USB export enables CSV/Excel-compatible batch retrieval. Analog (4–20 mA) and digital (Modbus RTU over RS485) outputs integrate natively with SCADA, DCS, and PLC systems. Optional cloud connectivity via MQTT or OPC UA allows centralized dashboard visualization and AI-driven anomaly detection (e.g., early warning of algal bloom onset or hydrocarbon intrusion). All communication protocols adhere to IEC 62443-3-3 cybersecurity guidelines.
Applications
- Real-time compliance monitoring of seawater discharge from offshore oil & gas platforms per OSPAR and MARPOL Annex IV regulations.
- Early detection of organic loading shifts in municipal wastewater treatment plant final effluent prior to marine outfall release.
- Process optimization in reverse osmosis pretreatment—tracking humic acid breakthrough via 254 nm UV absorbance correlation.
- Quality control in marine aquaculture facilities: correlating color shifts with dissolved organic carbon (DOC) and phytoplankton biomass trends.
- Regulatory reporting for ISO 24510-based water safety plans in coastal drinking water distribution networks.
FAQ
Does the PROC ON2 00 0 require periodic recalibration with physical standards?
Yes—while the instrument performs daily auto-zero and internal reference checks, quarterly verification against NIST-traceable Pt-Co standard solutions is recommended per ISO/IEC 17025 and EPA Method 180.1.
Can it operate continuously under high-salinity, biofouling-prone conditions?
Yes—the quartz flow cell, non-stick FPM gasketing, and optional ultrasonic anti-fouling mode enable stable operation at 40+ ppt salinity with <0.5% signal drift over 30-day unattended deployment.
Is raw spectral data accessible for custom algorithm development?
Yes—full 1 nm-resolution absorbance spectra (190–850 nm) are logged and exportable via USB or Modbus register mapping for third-party chemometric modeling.
What certifications validate its suitability for hazardous area installation?
ATEX II 2G Ex db IIB T4 Gb and IECEx Ex db IIB T4 Gb certifications are available upon configuration; documentation includes full EC-Type Examination Certificate and Declaration of Conformity.
How does it handle variable flow rates within the specified 0–2 L/min range?
An integrated Coriolis-based flow sensor provides real-time volumetric correction; absorbance values are normalized to pathlength and flow velocity to maintain accuracy across dynamic hydraulic conditions.
