Blogs and News

Industrial and municipal operations have long depended on periodic water sampling and analog instrumentation to monitor critical parameters like pH, conductivity, oxidation-reduction potential (ORP), and dissolved oxygen (DO). However, traditional grab sampling and infrequent lab tests provide only snapshots of water quality, often after issues have already occurred. This reactive approach can lead to undetected swings – with serious consequences. For example, in industrial plants like steel mills, improperly treated water can corrode equipment, cause environmental non-compliance, or even trigger costly process shutdowns.

Field engineers and technicians often refer to pH and other wet-chemical measurements as a “necessary headache.” Traditional sensors and old analogue setups have made these measurements notoriously finicky – prone to drifting, requiring constant calibration, and failing at the worst times. Many plants have effectively “learned to live with the pain” of keeping pH, ORP, conductivity, and dissolved oxygen readings in line, budgeting significant time and money for maintenance. Common complaints include sensors that frequently drift out of calibration, probes that fail due to moisture or electrical noise, and cumbersome replacement procedures that require re-wiring at the analyser. In short, conventional liquid analysis instruments have historically posed reliability challenges.

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.

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.

Enhancing DP Level Measurement Accuracy with Yokogawa’s Compensating Capillary System

Accurate level measurement is vital in process industries, particularly when dealing with chemicals stored in pressurized or sealed tanks. Differential Pressure (DP) transmitters, equipped with remote diaphragm seals, are commonly used for this purpose. However, temperature fluctuations can significantly impact the accuracy of these measurements due to the thermal expansion or contraction of the fill fluid within the capillaries.

The Challenge of Temperature Variations

In outdoor installations, ambient temperatures can vary widely. For instance, in the UK, wide daily temperature variances are not uncommon. Such variations can cause the fill fluid in the capillaries to expand or contract, leading to erroneous DP readings. This inaccuracy can result in overfilling or underfilling tanks, posing safety risks, potential environmental hazards, and operational inefficiencies.

DP-Flow Ltd's Innovative Solution: The Yokogawa Compensating Capillary

The Future of Sealing: DP-Flow Ltd's Integral O-Ring Seal Redefines Performance Standards

In the world of flow measurement, ensuring a reliable seal around orifice plates has always been a critical factor in maintaining system integrity and accuracy. For years, bonded seals have been the industry standard — but now, DP-Flow Ltd’s new orifice plate design with an integral recessed O-ring seal is setting a higher benchmark for performance.

Unlike traditional bonded seals, which rely on a fixed elastomer bonded to a metal orifice plate, the DP-Flow Ltd integral O-ring design incorporates a recessed groove machined directly into the orifice plate itself. This groove houses a precision-fitted O-ring, creating a dynamic seal that responds more effectively to system pressure and thermal expansion.

Key Improvements Over Bonded Seals:

Choosing the right valve positioner for your application can have a big impact on process control, equipment lifespan, and maintenance efficiency. Here's a practical guide to help you make the right choice:

Maintaining accurate static pH measurements in industrial settings can be a resource-heavy challenge. Between constant maintenance, repeated calibrations, and frequent sensor replacements, it's no surprise that many plants are turning to automation to save time, money, and improve safety.

Maintaining accurate static pH measurements in industrial settings can be a resource-heavy challenge. Between constant maintenance, repeated calibrations, and frequent sensor replacements, it's no surprise that many plants are turning to automation to save time, money, and improve safety.

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.