GreenPrima Prosan8200 Flow-Through Turbidimeter

Overview

The GreenPrima Prosan8200 Flow-Through Turbidimeter is an industrial-grade, continuous online turbidity analyzer engineered for high-reliability water quality monitoring in demanding process environments. It operates on the 90° light scattering principle—compliant with EPA Method 180.1 and ISO 7027—ensuring metrological traceability and regulatory acceptability across municipal, pharmaceutical, food & beverage, power generation, and semiconductor ultrapure water applications. Unlike benchtop or portable turbidimeters, the Prosan8200 integrates directly into pressurized sample streams via a dedicated flow cell, enabling real-time, unattended measurement without manual sampling or flow interruption. Its optical architecture features a stabilized 850 nm infrared LED source, selected to minimize interference from color absorption and natural organic matter (NOM), while maintaining robust signal-to-noise ratio across the full 0–1000 NTU range. The instrument’s thermal management system—including internal desiccant cartridges and active fan-assisted condensation control—ensures optical path stability under variable ambient humidity and temperature conditions (1–50 °C), critical for long-term field deployment.

Key Features

• True flow-through design with integrated pressure-regulated sample chamber (preset to 15 psi; compatible with 1–200 psi inlet pressure)
• High-resolution detection down to 0.0001 NTU, with automatic range switching between low- and high-turbidity modes
• Dual-mode calibration support: single-point zero and multi-point (up to 5-point) span calibration using NIST-traceable formazin or AMCO-AE standards
• Onboard desiccant status monitoring with automated visual and relay-based alert upon saturation
• Modular optical head and electronics assembly—field-replaceable without recalibration or alignment tools
• Configurable response time (5–500 seconds) to match process dynamics, including rapid-response mode for coagulation/flocculation control
• IP66-rated enclosure with corrosion-resistant housing suitable for indoor/outdoor wall-mount installation

Sample Compatibility & Compliance

The Prosan8200 is validated for use with potable water, filtered surface water, membrane permeate, reverse osmosis (RO) product water, cooling tower makeup, boiler feedwater, and sterile process water (PW/WFI). It accommodates suspended solids up to 200 mg/L and tolerates moderate particulate loadings without clogging, thanks to its self-cleaning flow geometry and optional inline particulate filter (sold separately). Regulatory compliance includes full alignment with U.S. EPA Method 180.1 for drinking water analysis and ISO 7027:2016 for instrument performance verification. Data integrity features support GLP/GMP-aligned operations: audit trail logging (time-stamped calibration events, parameter changes, alarm triggers), electronic signature-capable configuration lock, and optional 21 CFR Part 11-compliant software integration via MODBUS RTU.

Software & Data Management

Configuration, diagnostics, and historical data review are performed via the GreenPrima TurbView™ PC utility (Windows-compatible) or through native MODBUS RTU register access for SCADA/HMI integration. All operational parameters—including calibration coefficients, alarm thresholds, response time, and analog output scaling—are stored in non-volatile memory with battery-backed retention. The device supports dual independent 4–20 mA outputs (e.g., one for primary turbidity, one for diagnostic status) and two programmable relay outputs for local process interlocks (e.g., valve actuation upon turbidity excursion). Internal data logging retains up to 30 days of 1-minute averaged readings, exportable via USB or serial interface.

Applications

• Drinking water treatment: real-time monitoring of raw intake, flocculation basin effluent, sedimentation outflow, filtration influent/effluent, and finished water discharge
• Municipal distribution networks: leak detection support via turbidity anomaly trending at key node locations
• Pharmaceutical manufacturing: continuous verification of PW and WFI system integrity per USP and EU Annex 1 requirements
• F&B production lines: monitoring of CIP rinse water clarity, syrup dilution consistency, and final product suspension stability
• Power plant cycles: detection of condenser tube leakage (cooling water ingress) and demineralizer breakthrough

FAQ

Does the Prosan8200 require periodic lamp replacement?

No—the 850 nm LED light source is rated for 7 years of continuous operation under normal conditions and does not require user-serviceable replacement.
Can it be installed in outdoor enclosures without climate control?

Yes—its IP66 rating, internal condensation management system, and operating temperature range (1–50 °C) permit direct wall-mount installation in unheated pump houses, meter vaults, and rooftop mechanical rooms.
Is calibration traceable to national standards?

Yes—calibration is performed using formazin or AMCO-AE suspensions certified to NIST SRM 2134 or equivalent, with certificate-of-analysis documentation provided per batch.
How is sensor fouling mitigated during long-term operation?

The flow cell geometry promotes laminar shear at the optical window surface, and optional air-pulse or ultrasonic cleaning modules can be integrated via auxiliary I/O ports.
What cybersecurity provisions are included for MODBUS communication?

MODBUS RTU operates over isolated RS-485 with no embedded network stack; secure remote access requires external firewall or VLAN segmentation per IEC 62443-3-3 guidelines.