Flow meter

Vortex flowmeters are widely used instruments for measuring flow in various industries, leveraging the principle of vortex shedding. The wiring methods for these flowmeters vary depending on the type of output signal (analog, digital, or pulse) and the operational environment. Below is a detailed discussion of the most common wiring methods. 1. Two-Wire Connection (4-20mA […]

Introduction Unexpected instrumentation failures in industrial processes can trigger cascading issues — from production interruptions to significant safety risks. Preventive maintenance plays a crucial role in identifying early signs of malfunction and mitigating potential failures before they affect operations. Flow measurement systems, widely used in chemical, petrochemical, oil & gas, water treatment, and energy industries,

In the field of instrumentation, theoretical knowledge is like the wrench in your hand – it may seem insignificant, but if it fails at a crucial moment, the consequences can be severe! Whether you’re studying for a certification exam or working in the field, concepts like circuit diagrams, sensor principles, and troubleshooting logic are foundational

A Practical Engineering Guide with Real Case Analysis In fluid control systems, both flow meters and control valves are widely used and often installed in series on the same pipeline. A key engineering question frequently arises during design: Should the flow meter be installed before or after the control valve? Although the answer may vary

Electromagnetic flow meters are among the most widely used instruments in industrial process measurement—and also among those most prone to installation-related issues. Their output signal is extremely weak and easily affected by electromagnetic interference, so proper grounding and installation are crucial to achieving accurate and stable measurement. This guide explains why grounding is essential, how

Vortex flow meters are widely used across industrial automation due to their simple structure, wide turndown ratio, and strong adaptability. They are commonly deployed for measuring liquids, gases, and steam.However, in real operating environments, vortex meters may occasionally suffer from pulse loss — a condition where part of the vortex shedding signals generated by the

Vortex flow meters have long been appreciated for their wide applicability, no moving parts, and reasonable cost. They are commonly used for steam, compressed air, gases, and clean liquid measurement. However, in many industrial sites, vortex meters are often described as “unstable, inaccurate, or difficult to maintain.”In most cases, these problems do not come from

Background A client from Dubai required a high-accuracy flow monitoring system for concrete pumping operations. The system needed to measure both flow and pressure under demanding conditions — with a working pressure of up to 10 MPa and an abrasive medium containing cement slurry.Ordinary flowmeters often fail under such harsh environments due to excessive wear

In differential pressure flow measurement, the orifice plate, flow nozzle, and Venturi tube are the most commonly used primary elements. All three belong to the category of standard differential pressure devices, as defined in GB/T 2624, where their flow coefficients and discharge characteristics are well-established and can be used without individual calibration when designed and

Many may have noticed that when the pipe diameter is equal to or slightly larger than the flow meter’s measuring pipe diameter, the flow readings remain stable, and the flow coefficient is normal. Even if secondary flow occurs, the impact on the instrument is minimal. However, when the situation reverses and the pipe diameter becomes