Discover how deploying a multi-layered instrumentation overhaul resolved a severe ±15% volumetric measurement deviation under 6 kA DC stray currents and 4 MPa pressure surges within a heavy chemical electrolysis plant. Learn the exact hardware modifications, adaptive signal processing algorithms, and fiber-optic deployment techniques that restored stoichiometric balance, improved current efficiency by 3.2%, and slashed unplanned downtime from 42 hours to under 2 hours monthly.