Process analytics using in-line sensors plays a major role in monitoring manufacturing to ensure the required process conditions are always being met. Obviously, reliability of the data from sensors correlates with sensor measurement accuracy, but accuracy is not solely dependent on the use of high quality sensors.
Sensor maintenance and calibration procedures significantly influence a probe’s ability to measure dependably. pH and DO sensors have a certain accuracy associated with them as provided by the manufacturer. This accuracy can only be maintained if sensors are regularly and correctly calibrated. Further, calibration is essential in ensuring compliance with regulations such as global pharmacopeia.
METTLER TOLEDO’s new guide, “Hints and Tips to Improve Accuracy in DO and pH Measurement” covers good operating procedures for in-line pH and DO sensors and includes advice for sensor maintenance to ensure high measurement reliability at all times. The guide also explains the advantages of digital sensors in comparison to analog probes and how they provide greater measurement accuracy.
The guide is available at www.mt.com