GreenPrima Aqualysis 800A Total Alkalinity Analyzer
| Brand | GreenPrima |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Manufacturer |
| Origin Category | Imported |
| Model | Aqualysis 800A |
| Price | Upon Request |
Overview
The GreenPrima Aqualysis 800A Total Alkalinity Analyzer is an automated, benchtop-to-wall-mountable analytical instrument engineered for continuous or interval-based determination of total alkalinity in aqueous samples using standardized acid–base titration coupled with photometric endpoint detection. It operates on the principle of potentiometrically assisted colorimetric titration: a precise volume of sample is dosed into the reaction cell, followed by incremental addition of standardized sulfuric acid while monitoring absorbance changes at a defined wavelength (typically 520–570 nm) via an integrated LED-photodiode optical system. The inflection point of the absorbance curve—corresponding to the stoichiometric neutralization of bicarbonate, carbonate, and hydroxide ions—is used to calculate total alkalinity as CaCO₃-equivalent concentration. Designed for industrial water treatment environments, the Aqualysis 800A delivers stable, traceable measurements under variable flow and matrix conditions, meeting functional requirements aligned with ASTM D1067, ISO 9963-1, and EN ISO 9963-2 for alkalinity determination in process and environmental waters.
Key Features
- Automated titration cycle with photometric endpoint recognition ensures high reproducibility (±2% of selected reagent range) and eliminates operator bias.
- Configurable measurement intervals from 1 to 360 minutes—or triggered externally via digital input or flow pulse—enabling adaptive sampling strategies.
- Compact footprint (400 × 300 × 180 mm; 4 kg) and IP65-rated enclosure support installation in utility rooms, boiler houses, or outdoor kiosks without climate-controlled housing.
- Low-reagent consumption design reduces operational cost and waste generation; typical reagent usage is ≤1.2 mL per analysis.
- Integrated diagnostics include automatic zero/slope calibration verification, reagent depletion alerts, air bubble detection, and pump stroke validation.
- Two programmable digital inputs (IN1: start analysis; IN2: pause/abort) enable synchronization with dosing pumps, flow meters, or PLCs.
- Four configurable relay outputs (250 VAC / 4 A max) support alarm signaling, valve actuation, or interlock control in softening or demineralization systems.
- LCD color display with multilingual interface (English, German, French, Spanish) provides real-time status, trend graphs, and event logs.
Sample Compatibility & Compliance
The Aqualysis 800A is validated for use with clarified, non-turbid water streams exhibiting pH 4–10, temperature 5–40 °C, and pressure 0.2–5 bar (recommended 1–2 bar). Interference mitigation protocols are embedded for common cations: iron < 3 ppm, copper < 0.2 ppm, aluminum < 0.1 ppm, and manganese < 0.2 ppm. Sample filtration (≤5 µm) is recommended upstream if suspended solids exceed 10 mg/L. The analyzer complies with electromagnetic compatibility standards IEC 61326-1 and safety standard IEC 61010-1. Its data handling architecture supports audit-ready operation under GLP and GMP frameworks, with timestamped event logging, password-protected configuration access, and non-volatile memory retention of ≥10,000 measurement records.
Software & Data Management
Data output interfaces include one isolated 4–20 mA analog channel (load ≤750 Ω), one RS485 Modbus RTU port (addressable, baud rate up to 115.2 kbps), and four dry-contact relays. Internal memory stores measurement values, diagnostic flags, calibration history, and fault timestamps with millisecond resolution. Optional integration with GreenPrima’s AquaLink SCADA software enables remote parameter configuration, historical data export (CSV/Excel), alarm escalation via email/SMS, and trend visualization across multiple units. All communication protocols adhere to IEC 62443-3-3 security guidelines; no proprietary cloud dependency is required for core functionality.
Applications
- Real-time monitoring of total alkalinity in boiler feedwater and condensate return lines to prevent caustic embrittlement and scale formation.
- Control feedback for lime-soda softening plants and ion exchange regeneration cycles.
- Quality assurance of purified water (PW) and water for injection (WFI) in pharmaceutical manufacturing per USP and EU GMP Annex 1.
- Process optimization in cooling tower systems where alkalinity directly correlates with corrosion risk and biocide efficacy.
- Regulatory compliance reporting for surface water discharge permits requiring alkalinity profiling (e.g., EPA Method 310.1).
FAQ
What measurement principle does the Aqualysis 800A employ?
It uses acid–base titration with photometric endpoint detection, conforming to standard methods including ASTM D1067 and ISO 9963-1.
Can the instrument operate unattended for extended periods?
Yes—designed for continuous duty with standby power consumption of only 3.5 VA and maintenance intervals exceeding 6 months under typical operating conditions.
Is external sample filtration required?
Filtration to ≤5 µm is recommended when turbidity exceeds 5 NTU or particulate load exceeds 10 mg/L to prevent clogging and optical interference.
How is calibration verified during routine operation?
Automatic zero and span checks are performed before each analysis cycle using dedicated reference solutions; results are logged and configurable alarm thresholds trigger notifications.
Does the device support regulatory audit trails?
Yes—full event logging includes user actions, calibration events, error codes, and measurement timestamps, all stored in tamper-resistant internal memory compliant with FDA 21 CFR Part 11 requirements for electronic records.
