GreenPrima PROCON8000 Online Water Hardness Analyzer
| Brand | GreenPrima |
|---|---|
| Origin | Germany |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Imported Instrument |
| Model | PROCON8000 |
| Instrument Type | Online Water Quality Analyzer |
| Measured Parameter | Calcium and Magnesium Hardness (as CaCO₃) |
| Output Signals | 4–20 mA, RS485 |
| Measurement Principle | Automated Potentiometric Titration with Colorimetric Endpoint Detection |
| Reagent Consumption | Low |
| Enclosure Rating | IP65 |
| Wetted Materials | PTFE, PVDF, EPDM, Borosilicate Glass |
| Operating Mode | Continuous or Interval Measurement |
| Display | 7-inch TFT Touchscreen with Multilingual UI (English/Chinese) |
Overview
The GreenPrima PROCON8000 Online Water Hardness Analyzer is an industrial-grade, fully automated analyzer engineered for continuous or scheduled monitoring of total hardness—expressed as calcium carbonate (CaCO₃)—in softened water streams. It employs a robust, microprocessor-controlled potentiometric titration method with colorimetric endpoint detection, ensuring high reproducibility and minimal operator intervention. Unlike ion-selective electrode (ISE)-based systems, the PROCON8000 delivers superior accuracy in low-hardness applications (<10 mg/L as CaCO₃), where ISE drift and interference from alkalinity or ionic strength variations compromise measurement fidelity. Designed specifically for critical process water loops—including boiler feedwater, pharmaceutical purified water (PW/WFI), and closed-loop cooling systems—the instrument meets the stringent reliability and traceability requirements of regulated industrial environments.
Key Features
- Automated reagent delivery via precision peristaltic metering pump, calibrated to deliver sub-milliliter volumes with ±0.5% volumetric repeatability
- Integrated 7-inch capacitive touchscreen interface supporting English and Chinese language modes, with intuitive navigation and real-time status visualization
- Chemically resistant fluid path constructed entirely from PTFE, PVDF, EPDM elastomers, and borosilicate glass—compatible with common titrants (e.g., EDTA standard solution) and sample matrices up to pH 11
- Dual operating modes: continuous analysis (cycle time configurable from 15 to 120 minutes) or programmable interval measurement to optimize reagent usage and maintenance intervals
- Standard analog output (4–20 mA, HART-enabled) and digital communication via RS485 Modbus RTU protocol for seamless integration into DCS, SCADA, or PLC-based control architectures
- IP65-rated enclosure suitable for installation in non-hazardous industrial environments with ambient temperatures from 5 °C to 45 °C and relative humidity ≤85% non-condensing
Sample Compatibility & Compliance
The PROCON8000 is validated for use with clarified, particle-free water samples exhibiting turbidity <5 NTU and suspended solids <10 mg/L. It complies with ISO 6059 (Water quality — Determination of hardness — Titrimetric method using EDTA) and aligns with ASTM D1126-22 (Standard Test Method for Hardness in Water). For pharmaceutical applications, its design supports GLP-compliant operation through audit-trail-capable event logging (power cycles, calibration events, reagent depletion alerts). While not inherently 21 CFR Part 11 compliant, the system can be deployed within validated IT infrastructures when paired with secure data acquisition software that enforces electronic signature, role-based access control, and immutable record retention.
Software & Data Management
Onboard firmware provides local data storage for up to 30 days of 15-minute resolution hardness values, timestamps, reagent consumption logs, and diagnostic flags (e.g., air bubble detection, endpoint overshoot, electrode response stability). Data export is supported via USB flash drive (CSV format) or remote retrieval over Modbus TCP when connected to a gateway. Optional GreenPrima DataHub software enables centralized fleet monitoring, predictive reagent replacement scheduling, and automated report generation aligned with internal QA templates or regulatory submission formats (e.g., Annex 11, USP ).
Applications
- Real-time hardness control in reverse osmosis (RO) permeate and mixed-bed demineralizer effluent for power plant boiler feedwater systems
- Continuous verification of softener breakthrough in HVAC cooling tower makeup water circuits
- In-process monitoring of purified water (PW) distribution loops in GMP-compliant pharmaceutical manufacturing facilities
- Performance validation of ion exchange resin regeneration cycles in semiconductor ultrapure water (UPW) pretreatment stages
- Regulatory compliance tracking for EPA Clean Water Act discharge permits requiring hardness reporting at point-of-use
FAQ
What hardness range does the PROCON8000 measure?
It is optimized for low-range total hardness quantification from 0.1 to 200 mg/L as CaCO₃, with enhanced resolution below 5 mg/L.
How often does the system require calibration or maintenance?
Factory calibration remains stable for ≥6 months under typical operating conditions; routine maintenance includes quarterly reagent cartridge replacement and biannual optical cell cleaning.
Can the analyzer operate unattended for extended periods?
Yes—designed for 30-day unattended operation with onboard alarm thresholds for low reagent level, sample flow interruption, or endpoint detection failure.
Is multi-channel configuration supported?
Yes—via optional Multi-Channel Selector (MCS-2 to MCS-6), enabling sequential analysis of up to six independent sample streams with shared reagent and detection modules.
Does the system support external trigger inputs for synchronized sampling?
Yes—programmable dry-contact input allows synchronization with external process events such as backwash cycles or pump start signals.
