Online Water Analyzer for Liquid Process Streams

Choosing an Online Water Analyzer for Liquid Process Streams

Accurate water measurement in liquid process streams is critical for maintaining product quality, maximizing production efficiency, and protecting downstream equipment. The GUIDED WAVE™ Online NIR Water Analyzer delivers continuous, real-time measurement of water concentration in liquids using advanced Near-Infrared (NIR) spectroscopy, eliminating the delays associated with manual laboratory testing and offline moisture analysis.

Designed for chemical manufacturing, petrochemical processing, pharmaceuticals, refining, polymers, food and beverage, and specialty chemical production, the analyzer continuously measures water content directly in the process, enabling operators to optimize production, reduce waste, and improve product consistency.

Factors to Consider• Background hydrocarbon spectral characteristics
• Concentration range of water and desired analytical precision
• Potential interference from hydroxyl species
• Sample temperature variations and clarity Analytical Goals
• Provide maximum sensitivity
• Select wavelength(s) to stay within linear range
• Minimize interference due to background hydrocarbon variations and sample temperature changes
• Use an optical path of >1 mm in the fiber optic probe for ease of cleaning and minimal entrapment of bubbles and particles

Why Measure Water in Liquid Process Streams?

Even small variations in water concentration can affect:

Product quality
Chemical reactions
Solvent purity
Process efficiency
Catalyst performance
Product yield
Batch consistency
Equipment reliability
Regulatory compliance

Continuous online monitoring provides immediate feedback, allowing operators to make process adjustments before off-spec production occurs.

Why Choose GUIDED WAVE NIR Water Analysis?

Unlike laboratory methods such as Karl Fischer titration, which require manual sampling and delayed results, the GUIDED WAVE analyzer continuously measures water concentration directly in the process.

Key Benefits

Continuous online water measurement
Real-time process monitoring
No reagents required
Non-destructive analysis
Fast response
High analytical accuracy
Reduced laboratory testing
Lower operating costs
Fiber optic remote sampling
Designed for continuous 24/7 industrial operation
Easy integration with DCS and PLC systems
Compatible with insertion probes and flow cells

Cost Effective Solution

The application note, “A Word (or Two) About Online NIR Water Measurements in Liquid Samples”, explains these factors and analytical goals in detail. Thus illustrating a cost-effective solution for obtaining the desired sensitivity for water over the concentration range of interest in most organic liquids.

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