Conductivity is a key quality parameter in pharmaceutical and biotech production, where calibration is essential to ensure reliable measurements, regulatory compliance, and stable processes.
This knowledge section focuses on the practical aspects of conductivity calibration — including common challenges, calibration methods, and best practices for achieving reliable and traceable measurements.
Conductivity sensors can be calibrated either using standard solutions or by comparing with reference instruments. Each method has its challenges, from temperature effects to process disruption. Understanding these approaches helps ensure accurate, reliable, and cost-effective calibrations.
Getting accurate conductivity measurements isn’t always easy. From temperature effects to electrode fouling and poor calibration practices, several factors can affect reliability. Learn the key challenges and how to avoid them for precise, consistent results.
Conductivity instruments are used to verify that Water For Injection (WFI), Purified Water (PW), process water, and product streams meet strict quality requirements. Over time, sensor performance can drift due to fouling, changes in process conditions, or physical changes of the sensor.
Without regular calibration, inaccurate conductivity measurements can lead to batch rejection, production downtime, regulatory findings and deviations, and unnecessary risk to product quality. Calibration is therefore central to maintain confidence in measurement results and ensure ongoing compliance
Related solution
In many production environments, traditional conductivity calibration based on a standard solution can be time-consuming and difficult to integrate into daily operations. It requires dismantling the sensor from the process. The sensor needs to be thoroughly cleaned before and after calibration.
Modern approaches utilising on-line and at-line calibration make it possible to calibrate the sensor under real process conditions – reducing downtime, measurement uncertainty, and operational risk.
Explore how accredited calibrated Insacal Conductivity Meters support traceable, low-uncertainty calibration in production environments.
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