EZ4004 Hach Calcium Hardness Analyzer

The EZ4004 (No. EZ4004) is a specialized volumetric analyzer designed to provide laboratory-grade accuracy in an autonomous industrial format. It utilizes the colorimetric EDTA titration method, specifically adjusted to a high pH (typically using Sodium Hydroxide) to precipitate magnesium ions, ensuring that only Calcium Hardness is measured. The system features an integrated optical dipping probe that accurately identifies the titration endpoint by monitoring the color change of the indicator (such as Murexide). This eliminates the subjectivity and error associated with manual testing. The analyzer is controlled by a high-performance industrial panel PC and features a robust modular design that supports multi-stream analysis for up to 8 separate sample lines. With its automated cleaning, priming, and validation cycles, the EZ4004 maintains high uptime and data integrity even in demanding environmental conditions.

Advantages

• Specific Calcium Monitoring: Provides direct measurement of Calcium Hardness, essential for precise Langelier Saturation Index (LSI) calculations and scale prevention.
• Superior Precision: Advanced volumetric dispensing technology delivers accuracy better than 2% of the full-scale range.
• Automated Operational Reliability: Integrated self-cleaning and automatic validation routines minimize the need for manual intervention and ensure sensor longevity.
• Modular Multi-Stream Capability: Allows for the sequential monitoring of up to 8 different sampling points, maximizing the utility of a single instrument.
• User-Friendly Interface: Features a large touchscreen industrial PC for easy configuration, real-time data graphing, and trend analysis.
• Robust Industrial Housing: The IP44-rated cabinet ensures the electronic components are completely isolated from the wet-chemical analysis section for maximum safety.

Technical specifications