In the design and commissioning of industrial equipment, the following situations are often encountered: A buzzing sound when equipment is running Sudden, intense vibrations of cutting tools during machining Increasing loosening of motor bases over time Cracks appearing in pump machines after a few years of operation The root cause? Insufficient damping. Many people only […]
What is “Damping” in Industrial Equipment? Read More »
In areas with acid and alkali corrosion, instrument air supply lines (compressed air pipelines) are prone to damage due to acid mist, splashes, or volatile gases, leading to gas leaks, contamination, and affecting the normal operation of instruments. Protective measures must be taken in terms of material selection, pipeline protection, installation layout, and maintenance. These
Protective Measures for Instrument Air Supply Lines in Acid and Alkali Corrosive Areas Read More »
Choosing the right flowmeter is a critical decision that directly affects the accuracy, reliability, and efficiency of your flow measurement process. Here’s a comprehensive guide to help you select the appropriate flowmeter for your application. 1. Fluid and Operating Conditions (The Foundation of Selection) Accurate fluid characterization and working conditions are key to determining the
Flowmeter Selection Considerations Read More »
A lightning strike recently caused a 230 million RMB power generation unit to fail instantly—this was not a movie effect, but a real incident at a thermal power plant in Guangdong in 2023. In Dongguan alone, there were seven incidents of lightning strikes on power generation equipment, with a single loss of up to 820,000
What is Grounding Resistance and When Should It Be Below 4Ω? Read More »
When there is a significant deviation between the actual valve position and the DCS (Distributed Control System) display (i.e., the actual valve opening differs considerably from the DCS screen reading), process control can be affected. To resolve this, a systematic approach must be taken to investigate signal transmission, positioner calibration, actuator functionality, and DCS settings.
Troubleshooting Discrepancies Between Valve Position and DCS Display Read More »
The key to effective interference suppression for radar level transmitters is a systematic approach: first, physical obstruction removal; then, precise echo masking; and finally, coordinated parameter optimization. Follow these actionable steps to adapt to typical chemical plant conditions. Preparation (Essential Steps) Empty Tank / Low Liquid Level Verification: Interference learning must be performed when the
Best Settings for Radar Level Transmitter Interference Suppression Read More »
1. Introduction A Differential Pressure Flow Meter (DP Flow Meter) measures flow rate by detecting the pressure difference generated by a primary element installed in a pipeline. The flow rate is calculated based on: Measured differential pressure Known fluid properties Geometric dimensions of the primary element and pipe A typical DP flow measurement system consists
In any industrial automation system, inaccurate pressure measurement can compromise safety, product quality, and process stability. A pressure transmitter is often referred to as the “nerve ending” of a control system. If its zero point drifts, every downstream control action — from PID regulation to safety interlocks — may operate on incorrect data. Zero calibration
Why Zero Calibration Is Critical for Pressure Transmitters Read More »
Thermocouples are among the most widely used temperature sensors in industrial measurement systems. From power plant boilers to gasification furnaces and petrochemical reactors, thermocouples provide reliable temperature monitoring in environments ranging from –200°C to above 1800°C. Understanding how thermocouples work, how to select the correct type, and how material degradation affects long-term accuracy is essential
Thermocouple: Principle, Selection Guide, Failure Mechanism and Industrial Applications Read More »
In field maintenance, engineers often encounter this situation: The zero point cannot be adjusted back to 4 mA The full-scale output cannot reach 20 mA Mid-range readings show serious deviation Many technicians keep trying to adjust zero and span repeatedly. However, once the deviation exceeds the transmitter’s internal adjustment range, calibration will no longer solve
