GreenPrima Prosan8200 Inline Turbidimeter

Overview

The GreenPrima Prosan8200 Inline Turbidimeter is an industrial-grade, flow-through optical instrument engineered for continuous, real-time turbidity monitoring in potable water, process water, and ultrapure water systems. It operates on the 90° nephelometric scattering principle per ISO 7027 and U.S. EPA Method 180.1 — ensuring metrological traceability and regulatory alignment for drinking water utilities and GMP-compliant facilities. Unlike benchtop or portable turbidimeters, the Prosan8200 integrates directly into pressurized sample lines via NPT or tri-clamp fittings, enabling uninterrupted measurement without bypass loops or flow cells requiring manual maintenance. Its 850 nm infrared LED light source minimizes color interference and eliminates photometric drift associated with tungsten-halogen lamps, while the dual-detector optical path compensates for window fouling and particulate shadowing effects — a critical advantage in high-solids or biofilm-prone applications.

Key Features

• True inline flow-through design with integrated pressure regulation (factory-set to 15 psi), eliminating external pressure-reducing valves and flow controllers.
• High-resolution detection capability down to 0.0001 NTU, configurable via firmware to match application sensitivity requirements — from ultra-low turbidity in pharmaceutical PW/UPW to high-range sedimentation basin monitoring.
• Self-diagnostic desiccant system with humidity sensor and active internal fan; automatic alert triggers upon desiccant saturation to prevent condensation-induced optical error.
• Auto-ranging measurement circuitry that dynamically switches between low- and high-gain photodetector modes across the full 0–1000 NTU span, maintaining optimal signal-to-noise ratio at all concentrations.
• Modular optical head and electronics assembly — field-replaceable without recalibration — reduces mean time to repair (MTTR) and supports long-term serviceability under ISO 9001-certified support protocols.
• IP66-rated polycarbonate enclosure with UV-stabilized gasketing, rated for outdoor wall-mount installation in unconditioned environments (1–50 °C ambient).

Sample Compatibility & Compliance

The Prosan8200 is validated for use with clarified surface water, filtered distribution system water, reverse osmosis permeate, deionized cooling water, and sterile process streams in food & beverage, biopharmaceutical, and power generation applications. It meets ISO/IEC 17025 preconditions for in-situ calibration verification and supports audit-ready data integrity through configurable logging intervals and timestamped event records. For regulated environments, the device complies with key sections of FDA 21 CFR Part 11 (when paired with compliant SCADA/Historian systems), adheres to EN 61326-1 for electromagnetic compatibility, and satisfies the optical performance criteria outlined in ASTM D6508 and USP for purified water monitoring.

Software & Data Management

Configuration, calibration, and diagnostics are managed via a local IR interface or optional RS-485 MODBUS RTU connection — compatible with industry-standard DCS, PLC, and IIoT platforms (e.g., Siemens Desigo, Rockwell FactoryTalk, Ignition). The embedded firmware stores up to 32,000 timestamped turbidity readings with 1-second resolution, exportable via serial dump or MODBUS register polling. Calibration history—including date, operator ID, standard used (Formazin or AMCO AEPA), and deviation logs—is retained for GLP/GMP traceability. Optional cloud gateway integration enables remote firmware updates, alarm forwarding via email/SMS, and trend visualization through secure HTTPS dashboards.

Applications

• Drinking water treatment: Real-time monitoring of raw intake, coagulation/flocculation effluent, sedimentation basin outflow, rapid sand filter influent/effluent, and finished water storage tanks.
• Municipal distribution networks: Leak detection support via anomaly trending at critical junctions and booster stations.
• Pharmaceutical manufacturing: Continuous verification of WFI (Water for Injection) and PW quality during production cycles per EU GMP Annex 1 and USP .
• F&B processing: Monitoring of CIP rinse water clarity, carbonated beverage syrup dilution consistency, and pasteurizer cooling loop integrity.
• Power plant condensate polishing: Early detection of resin bed breakthrough or heat exchanger tube leakage.

FAQ

What standards does the Prosan8200 comply with for regulatory reporting?

It conforms to ISO 7027:2016 (nephelometric method) and U.S. EPA Method 180.1, making it suitable for compliance reporting in municipal water utilities and EPA-regulated industrial dischargers.
Can the Prosan8200 be calibrated using non-Formazin standards?

Yes — it supports user-defined calibration curves for polymer-based (e.g., AMCO AEPA) or silica suspension standards, provided traceable reference values and uncertainty budgets are entered during setup.
Is the optical window self-cleaning?

No — but its hydrophobic coating, combined with the internal fan-assisted dry-air purge and scheduled automated zero-check routines, significantly extends cleaning intervals compared to non-purged designs.
How is data integrity ensured during power interruption?

All configuration parameters and the last 1,024 logged readings are preserved in non-volatile memory; clock battery backup maintains accurate timestamps for up to 72 hours without AC power.
Does the unit support HART communication?

Not natively — only isolated 4–20 mA and RS-485 MODBUS RTU are supported. HART functionality requires an external protocol converter certified for hazardous area use if deployed in classified zones.