GreenPrima PROCON6000 Online Silica Analyzer
| Brand | GreenPrima |
|---|---|
| Origin | Switzerland |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Origin Category | Imported |
| Model | PROCON6000 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Photometric Colorimetry (Molybdenum Blue Method) |
| Detection Range | 0–200 µg/L SiO₂ (configurable sub-ranges available) |
| Accuracy | ±2% of reading or ±1 µg/L (whichever is greater) |
| Repeatability | <1.5% RSD |
| Sample Temperature Range | 5–40 °C |
| Sample Pressure | 0.1–0.6 bar |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | IP65 |
| Communication Interfaces | RS485 (Modbus RTU), 0/4–20 mA (programmable), USB (optional data export) |
Overview
The GreenPrima PROCON6000 Online Silica Analyzer is a dedicated photometric instrument engineered for continuous, real-time quantification of dissolved silica (SiO₂) in ultrapure water streams. It employs the standardized molybdenum blue colorimetric method—compliant with ASTM D859 and ISO 10523—where soluble silicate reacts with molybdate under acidic conditions to form a heteropoly acid, subsequently reduced to an intensely colored molybdenum blue complex. Absorbance at 815 nm is measured via dual-beam optical detection, ensuring high stability against lamp drift and cuvette fouling. Designed specifically for critical water circuits—including boiler feedwater, turbine condensate, nuclear primary coolant, and semiconductor process rinse water—the PROCON6000 delivers trace-level sensitivity (detection limit <0.5 µg/L SiO₂) with minimal reagent consumption and zero requirement for daily manual calibration. Its architecture integrates thermal stabilization of the reaction manifold and pressure-regulated sample flow control to maintain analytical integrity across variable plant operating conditions.
Key Features
- Photometric measurement based on the validated molybdenum blue method per ASTM D859 and ISO 10523
- Automatic system self-check, zero-point verification, and dynamic offset compensation at every analysis cycle
- Configurable analysis interval (1–120 minutes) with programmable start/stop triggers via dry contact or Modbus command
- Integrated 7-inch capacitive touchscreen HMI with multilingual interface (English, German, French, Chinese)
- Compact footprint (450 × 400 × 220 mm) suitable for panel mounting or standalone cabinet integration
- Factory-preconditioned reagent cartridges with RFID-tagged lot tracking and expiry monitoring
- Programmable 0/4–20 mA analog outputs with isolated channels for alarm, concentration, and status signals
- Optional USB port for encrypted CSV data dump (timestamped, audit-trail enabled) without network dependency
Sample Compatibility & Compliance
The PROCON6000 is validated for use with deionized, reverse osmosis, and mixed-bed polished water having conductivity <0.2 µS/cm and total organic carbon (TOC) <100 ppb. It tolerates suspended solids up to 1 mg/L and particulate size <5 µm when paired with optional 10-µm inline filtration. The analyzer conforms to IEC 61326-1 (EMC for industrial environments), IEC 61000-4 series immunity standards, and carries CE marking under the EU Measuring Instruments Directive (MID) Annex MI-004 for water quality meters. All firmware and configuration logs comply with ALCOA+ principles and support 21 CFR Part 11-compliant electronic records when deployed with GreenPrima’s optional SecureLog module (audit trail, user roles, digital signatures).
Software & Data Management
The embedded firmware supports local data storage of ≥12 months’ worth of 5-minute averaged values, diagnostic events, and maintenance logs. Remote access is enabled via Modbus RTU over RS485 for integration into DCS, SCADA, or PI System platforms. Optional GreenPrima Insight™ software provides web-based visualization, trend overlay across multiple analyzers (including co-located phosphate or conductivity units), deviation alerts with root-cause tagging, and automated report generation (PDF/Excel) aligned with ISO 5725 repeatability guidelines. All configuration changes are timestamped and attributed to operator ID; rollback to prior configurations is supported without firmware reload.
Applications
- Steam cycle chemistry monitoring in fossil and nuclear power plants (ASME PTC 19.11, EPRI TR-102199)
- Ultrapure water (UPW) quality assurance in semiconductor fab front-end processes (SEMI F63)
- Pharmaceutical purified water and water-for-injection (WFI) systems per USP and EU GMP Annex 1
- Process water surveillance in petrochemical hydrogen reformers and amine regenerators
- Cooling water silica saturation index modeling in closed-loop HVAC and turbine lube oil systems
FAQ
What is the recommended sample flow rate and pressure range for optimal performance?
Optimal operation requires a continuous, bubble-free sample flow of 120–180 mL/min at 0.1–0.6 bar inlet pressure. A built-in pressure regulator and pulse-dampening chamber ensure stable hydraulic conditions independent of upstream fluctuations.
Does the PROCON6000 require daily calibration or standard addition?
No. It performs automatic zero-reference correction using high-purity deionized water blanks and applies factory-established calibration curves traceable to NIST SRM 2020a. Only annual verification with certified reference material (CRM) is required per ISO/IEC 17025 internal quality protocols.
Can the analyzer operate unattended for extended periods?
Yes. With standard reagent cartridges (6-month capacity), the system supports >6,000 consecutive analyses with no operator intervention. Predictive diagnostics alert users 72 hours prior to reagent exhaustion or filter clogging.
Is the PROCON6000 compatible with multi-parameter monitoring systems?
Yes. When integrated with the GreenPrima MCS Multiplexer Station, it supports synchronized 2–6 channel operation—including simultaneous silica, phosphate, sodium, and conductivity—on a single controller with shared reagent manifold and unified data timestamping.
