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Troubleshooting Pressure Differential Flow Meters: Common Issues and Solutions

Pressure Transmitter /

In industrial applications, pressure differential flow meters are crucial for accurate flow measurement. However, there are occasions when these meters fail to provide readings, even when other equipment is operating normally. In this article, we will analyze two specific cases from the benzene breakdown workshop to understand the causes and solutions for flow meter failure. […]

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Application of Multi-core Cables to the Device Terminal Junction Box and Branch Cables Connecting to Instruments: Advantages and Disadvantages

Instrumentation /

In industrial automation and control systems, the selection and arrangement of cables are crucial for system stability and ease of maintenance. The following is an analysis of the advantages and disadvantages of two methods: using multi-core cables to connect to the device terminal junction box, then branching out to instruments, and directly connecting cables to

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The application of radar level meters in the measurement of deaerator liquid levels

Level meter /

As an advanced level measurement instrument in modern industry, the radar level meter is widely used in various fields due to its accuracy and reliability. Particularly in the petrochemical industry, the application of radar level meters is of critical importance for the measurement of deaerator liquid levels. This article will delve into the practical application

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Differences Between Explosion-Proof Markings Ex d and Ex db

Instrumentation /

Abstract The explosion-proof markings Ex d and Ex db are distinct classifications under different standards for explosion protection in electrical equipment. Ex d refers to the older standard GB3836.2-2010, which specifies requirements for equipment protected by a flameproof enclosure. Ex db, on the other hand, complies with the updated standard GB/T3836.2-2021, also designed for explosive

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How to Evaluate the Coil Resistance of Electromagnetic Flow Meters

Flow meter /

Electromagnetic flow meters are widely used in industries where precise measurement of liquid or gas flow is essential. The coil resistance of these devices plays a crucial role in ensuring their accurate operation. The resistance values of the coils can vary depending on the model, manufacturer, and specifications, usually ranging from tens of ohms to

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Choosing Between PNP and Relay Outputs: Which One is Right for You?

PLC /

In industrial automation, the design of instrumentation and control systems relies heavily on the proper configuration of sensors, switching signals, and actuators. Among the commonly used interface types, PNP signal output and relay output are two prevalent options. This article will explore the differences between PNP and relay outputs in terms of their definition, working

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Common Faults and Troubleshooting of Differential Pressure Flowmeters

Pressure Transmitter /

1. Abnormal or No Display on the Flowmeter Possible Causes: Faulty differential pressure transmitter. Clogged or leaking impulse lines. Damage or improper installation of the throttling device. Power supply or signal line issues. Troubleshooting Steps: Check the differential pressure transmitter for proper operation. If necessary, recalibrate or replace the transmitter. Inspect the impulse lines for

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From PLC to Industrial Automation: How Modbus Connects Everything

PLC /

Introduction In modern industrial control and automation systems, efficient and reliable communication between devices is crucial. To ensure seamless interaction among various equipment, communication protocols play a fundamental role. One of the most widely adopted protocols in industrial automation is Modbus. First introduced in 1979 by Modicon (now a part of Schneider Electric), Modbus has

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Factors Affecting Communication of HART Smart Pressure Transmitters

Hart /

The HART (Highway Addressable Remote Transducer) smart pressure transmitter is a high-precision, high-stability intelligent instrument designed for real-time communication and pressure measurement. It allows users to manage, adjust, and monitor process variables remotely via HART communication, as well as perform on-site configuration using buttons, making it convenient to operate. However, there are several factors that

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The specific application of radar flow meters in the field of water treatment

Level meter /

Water, as an important resource and medium, requires precise flow measurement to ensure production safety, improve economic efficiency, and conserve resources. With the continuous advancement of technology, radar flow meters, characterized by non-contact measurement, high accuracy, and strong stability, have been widely applied in the field of water treatment. Radar flow meters measure the velocity

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