GreenPrima Prosan8200 Online Turbidimeter

Overview

The GreenPrima Prosan8200 Online Turbidimeter is an industrial-grade, EPA-compliant turbidity analyzer engineered for continuous, real-time monitoring of suspended particulate matter in liquid process streams. It operates on the 90° nephelometric scattering principle per ISO 7027 and U.S. EPA Method 180.1 — ensuring metrological traceability and regulatory alignment across municipal drinking water, pharmaceutical, food & beverage, power generation, and semiconductor ultrapure water applications. Unlike benchtop or portable units, the Prosan8200 integrates directly into pressurized piping systems via its built-in pressure regulation (factory-set to 15 psi), enabling stable optical measurement under variable hydraulic conditions without external flow cells or bypass loops. Its solid-state 850 nm infrared LED light source delivers exceptional long-term photometric stability and a rated operational lifespan of seven years — minimizing recalibration frequency and eliminating lamp replacement downtime.

Key Features

• True online operation with integrated pressure regulation (1–200 psi range, factory preset at 15 psi) for direct inline installation
• Nephelometric detection at precisely 90° scattering geometry, compliant with ISO 7027 and U.S. EPA Method 180.1
• High-resolution measurement capability down to 0.0001 NTU, with user-adjustable resolution settings for application-specific optimization
• Auto-ranging measurement system that dynamically switches internal gain stages across the full 0–1000 NTU span
• Integrated desiccant chamber and active internal fan to suppress condensation and maintain optical path integrity in high-humidity environments
• Self-diagnostic desiccant exhaustion alert — triggers visual and relay-based notification when moisture absorption capacity is depleted
• Modular optical and electronics architecture enabling field-replaceable sensor cartridges and control boards without full unit replacement
• Backlit multi-line LCD display with intuitive menu navigation, real-time trend logging, and local parameter configuration

Sample Compatibility & Compliance

The Prosan8200 is validated for use with clear to highly turbid aqueous media, including potable water, filtered effluent, recirculating cooling water, clean-in-place (CIP) rinse solutions, and ultrapure water (UPW) in semiconductor fabs. It meets material compatibility requirements for ASTM D5116 (plastics in contact with drinking water) and complies with EN 61326-1 for electromagnetic compatibility in industrial environments. Its measurement uncertainty profile satisfies ISO/IEC 17025–accredited laboratories’ requirements for routine turbidity verification. For regulated industries, the instrument supports audit-ready data handling when paired with compliant SCADA or LIMS platforms — including timestamped calibration logs, alarm event records, and firmware version tracking essential for FDA 21 CFR Part 11 and EU Annex 11 compliance.

Software & Data Management

Data acquisition and configuration are supported via dual communication interfaces: isolated 4–20 mA analog output (HART-compatible) for PLC integration and RS-485 serial interface implementing MODBUS RTU protocol for digital telemetry. All measurements, calibration events, alarm triggers, and diagnostic flags are time-stamped with millisecond precision and stored locally in non-volatile memory (retaining ≥30 days of 1-minute interval data). Optional cloud-enabled gateways allow secure TLS-encrypted forwarding to centralized asset management platforms. Calibration history — including standard values, operator ID, and deviation metrics — is exportable as CSV for GLP/GMP documentation workflows. Firmware updates are performed via signed binary files to ensure cryptographic integrity and prevent unauthorized modification.

Applications

• Municipal water treatment: Continuous monitoring of raw intake, coagulation/flocculation basins, sedimentation effluent, rapid sand filter influent/effluent, and finished water distribution points
• Pharmaceutical manufacturing: USP <788> particulate matter testing support, WFI (Water for Injection) loop surveillance, and clean steam condensate verification
• Food & beverage production: CIP return line turbidity validation, syrup dilution consistency control, and pasteurizer hold-tube integrity checks
• Power generation: Condensate polishing system performance assessment and boiler feedwater clarity assurance
• Electronics fabrication: UPW distribution network leak detection and point-of-use filter breakthrough monitoring

FAQ

What regulatory standards does the Prosan8200 comply with?
It conforms to ISO 7027:2016 (nephelometric method), U.S. EPA Method 180.1 (2003), and ASTM D6508 (standard practice for turbidity measurement in water).
Can the instrument operate in pressurized pipelines without external flow cells?
Yes — it features an integrated pressure regulator and wetted-path design rated for continuous operation at up to 200 psi.
How is calibration verified and documented for audit purposes?
Calibration uses NIST-traceable Formazin or AMCO AEPA standards; all sessions are logged with date/time, operator ID, reference value, measured value, and deviation — exportable as CSV.
Is the desiccant replaceable in the field, and how is exhaustion detected?
Yes — the desiccant cartridge is user-serviceable; internal humidity sensors trigger both front-panel alerts and dry-contact relay alarms upon saturation.
Does the Prosan8200 support MODBUS TCP or only MODBUS RTU over RS-485?
It natively implements MODBUS RTU over RS-485; MODBUS TCP requires an external protocol gateway.