The SE 558 Memosens pH Sensor is specifically engineered for high-purity water applications, particularly where conductivity exceeds 10 μS/cm. Designed for low-maintenance operation, it offers a reliable alternative to traditional, high-maintenance liquid-filled pH sensors.

One of the most common questions we hear is: “How accurate is my pH sensor?”
It seems like it should be a straightforward answer—something like “±0.25%” or “±0.5 pH units.” But in reality, the accuracy of pH measurement depends on a number of variables, and there’s rarely a one-size-fits-all answer.

The Value of Enhanced Sensor Diagnostics

How many pH sensors did we throw away last month?

Remember the days when a terrible noise from the engine compartment or the smell of burning oil signalled a problem with your car? Before cars had built-in diagnostics, we didn’t just discard our vehicles; we took them to a mechanic for evaluation and repair.

What does the implementation of Recommended Practice S2812-X-19 or ISO/TC 153 N 425, ISO/NP 5115 in practice mean for the various groups involved such as valve and actuator manufacturers, integrators, and end-users of automated valve assemblies?

ANDREAS VOGT F.I.R.S.T. GESELLSCHAFT FÜR TECHNISCH-WISSENSCHAFTLICHE SOFTWAREANWENDUNGEN MBH

In June 2019, the "Recommended Practice S2812-X-19" (hereinafter referred to as RP) was published by the WIB at the Valve World Americas Conference in Houston. The RP is entitled "Actuated Valve Assembly - A Recommended Practice for Part turn Automated On-Off valves" and addresses the issue (including the definition of the general conditions) of sizing, selection, and the mechanical integrity of automated valve assemblies widely used in many industries.

Knick Ultra Compact MemoTrans Transmitters

The MemoTrans transmitter is an ultra-compact, 2-wire multiparameter device that connects directly to Memosens digital sensors. It is designed to measure various parameters such as pH, ORP (oxidation-reduction potential), conductivity, and dissolved oxygen. This versatility makes it an invaluable tool across a wide range of industrial applications.

Diaphragm pressure seals are essential components in many industrial applications, providing accurate pressure measurements while protecting sensitive instruments from harsh process conditions. However, like any equipment, they are not immune to errors and failures. Understanding the common causes of diaphragm pressure seal errors can help in preventing costly downtime and ensuring reliable operation.

Oxygen sensors play a vital role in a wide range of industrial processes—from monitoring water quality to ensuring environmental compliance and maintaining process control. Whether used in liquids or gases, these sensors help monitor free oxygen levels to support safe, efficient operations.

Accurate and reliable pH measurements are essential for maintaining optimal process control. However, many users encounter pH drift, a phenomenon that compromises data accuracy over time. Understanding what pH drift is, its primary causes, and how to prevent it can help you optimize sensor performance and avoid unnecessary downtime.