admin_zero, Author at Just Measure it - Page 9 of 362

admin_zero

Is Your Pressure Transmitter Really Faulty? In Most Cases, It’s Innocent

Pressure Transmitter /

In industrial settings, there’s a dangerous “knee-jerk” reaction that can be costly: Whenever the pressure transmitter readings fluctuate, technicians often suspect the device is faulty and immediately request a replacement. What happens next? A new transmitter is installed, but within a few days, the same “drift” occurs again. Engineer Li, with years of experience in […]

Is Your Pressure Transmitter Really Faulty? In Most Cases, It’s Innocent Read More »

Reasons and Solutions for Large Fluctuations in Thermal Mass Flow Meters

Flow meter /

Thermal mass flow meters, commonly used for measuring the mass flow rate of gases or small amounts of liquids, may experience significant fluctuations, leading to unstable readings that can impact process control. The causes of such fluctuations should be investigated from multiple aspects, including the properties of the medium, instrument installation, equipment parameters, and external

Reasons and Solutions for Large Fluctuations in Thermal Mass Flow Meters Read More »

Understanding Valve and Piping Codes in Engineering Drawings

Instrumentation /

When engineers first look at a piping or P&ID drawing, one thing becomes immediately noticeable:there are not many words, but there are many letter combinations. These letters are what we commonly call valve and piping codes.At first glance, they may look complicated, but in reality, they are simply a compact way of expressing technical information.

Understanding Valve and Piping Codes in Engineering Drawings Read More »

Laminar Flow, Turbulent Flow and Reynolds Number

Instrumentation /

A Practical Guide to Flow Measurement and Flowmeter Selection Introduction Why does an electromagnetic flowmeter become less accurate when measuring sludge-containing wastewater?Why does a steam flow measurement still fluctuate badly even when an imported differential pressure transmitter is installed?Why does an oval gear flowmeter measuring lubricating oil seize after only a few months of operation?

Laminar Flow, Turbulent Flow and Reynolds Number Read More »

Troubleshooting and Repair of Flowmeters: Case Studies of Common Issues

Flow meter /

1. Issue: Display of the 8800D Saturated Steam Flowmeter Shows Low Readings Fault Diagnosis: This was a newly installed meter. Upon rechecking the settings, it was found that the flow measurement unit was set incorrectly— the range upper limit of 16,000 kg/h was mistakenly set to 16,000 m³/h. Fault Resolution: After correcting the range upper

Troubleshooting and Repair of Flowmeters: Case Studies of Common Issues Read More »

What Is a Pipeline Strainer and How Should It Be Selected?

Pipeline /

Introduction In industrial piping systems, strainers are rarely the most expensive components, nor are they usually the focus during the design stage. However, in actual operation, many problems that appear to be incidental—such as abnormal pump wear, control valve sticking, or gradual deterioration of heat exchanger performance—can often be traced back to insufficient filtration or

What Is a Pipeline Strainer and How Should It Be Selected? Read More »

Instrumentation Inspection Checklist and Key Inspection Points

Instrumentation /

1. Instrument Body and Accessories Inspection 1.1 Pressure Gauges / Differential Pressure Gauges Inspection Points: Check whether there is condensation, water droplets, or moisture inside the gauge. Ensure the pointer is intact, without falling off, sticking, or abnormal movement. Confirm the dial scale is clear and legible. Inspect the gauge body for deformation, mechanical damage,

Instrumentation Inspection Checklist and Key Inspection Points Read More »

Why the Sub-Meter Shows Flow but the Main Steam Flow Meter Reads Zero

Flow meter /

A Practical Troubleshooting Case Study In industrial steam measurement systems, discrepancies between sub-meters and the main flow meter are not uncommon. One particularly confusing situation is when the branch flow meter shows a stable flow rate, while the main meter continuously indicates zero flow. Is this a sensor failure?A wiring problem?Or is the issue hidden

Why the Sub-Meter Shows Flow but the Main Steam Flow Meter Reads Zero Read More »

PROFIBUS vs. PROFINET: Key Differences in Industrial Communication Systems

Instrumentation /

In industrial automation, the comparison between PROFIBUS and PROFINET has been discussed for decades.Both communication technologies are defined and maintained by PI (PROFIBUS & PROFINET International) and belong to the same IEC standard family. While they share continuity in engineering philosophy and configuration concepts, their technical architectures represent two different generations of industrial communication systems.

PROFIBUS vs. PROFINET: Key Differences in Industrial Communication Systems Read More »

Translate »