Updated on 23 September 2026
Reliable Water Monitoring for reliable H2 Production - Our Products
Project Manager at Swan Analytische Instrumente AG
Zürich, Switzerland
About
Water quality is essential to reliable hydrogen production. SWAN Analytical Instruments offers continuous online monitoring solutions for PEM and alkaline electrolyzer applications, helping operators detect changes in water quality, optimize treatment and protect critical equipment.
Our solutions cover key monitoring points throughout the process:
• Feedwater: conductivity, total organic carbon (TOC) and silica monitoring to verify the quality of demineralized water supplied to the electrolyzer.
• PEM pure water loops: conductivity, pH and TOC monitoring at relevant points to track water purity and treatment performance.
• Alkaline process loops: conductivity and concentration monitoring to support control of potassium hydroxide (KOH) concentration.
• Cooling water: conductivity, pH/redox and disinfectant monitoring to support water treatment and help control scaling and biofouling.
SWAN instruments are supplied as fully assembled, ready-to-operate modules, with communication options for integration into plant control systems. Our offering also includes sample conditioning solutions and purged enclosures for applications in potentially explosive areas, subject to project requirements.
Based in Hinwil, Switzerland, SWAN combines in-house manufacturing and factory testing with international technical support, training and maintenance services.
We welcome enquiries from hydrogen project developers, electrolyzer manufacturers, EPC contractors, water treatment providers and plant operators. Contact us to discuss your application and identify suitable monitoring solutions for your project.
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