Tag: Instrumentation

Introduction For municipal and industrial engineers, few instruments cause as much operational frustration as the humble pH/ORP analyzer. Despite being fundamental to process control—dictating coagulation efficiency, biological health, and disinfection compliance—these electrochemical sensors are notorious for drift, fouling, and frequent replacement requirements. In many wastewater treatment plants (WWTPs), it is not uncommon to find up […]

Introduction In the municipal and industrial water sector, data integrity is the bedrock of process control. Yet, a surprisingly high percentage of plant alarms—estimated by some automation audits to be over 40%—are nuisance alarms caused not by process failures, but by instrumentation drift, fouling, or improper specification. For the design engineer or plant superintendent, the […]