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Key Requirements for Metal Enclosures and Components in Explosion-Proof Equipment

Instrumentation /

Explosion-proof equipment is crucial in industries where hazardous conditions, such as flammable gases or combustible dust, are present. The metal enclosures that house these equipments play a vital role in preventing any potential ignition source from triggering an explosion. Here are the detailed requirements for the metal components used in these enclosures: 1. Corrosion Resistance […]

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Comprehensive Guide to Transmitters in Process Control Instruments

Pressure Transmitter /

Introduction Process control instruments consist of three primary hardware components: the measurement and transmission unit, the actuator, and the controller. The measurement and transmission unit, commonly known as the transmitter, serves as the link between the sensor and the control system. In some cases, the transmitter and the sensor are integrated into a single device.

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Conditions for Implementing a Two-Wire Transmitter System

Pressure Transmitter /

In industrial settings, it is often necessary to measure various non-electrical physical quantities, such as pressure, liquid level, temperature, differential pressure, humidity, soil moisture, and more. To transmit these physical quantities to a control room or display device, which could be hundreds of meters away, they need to be converted into standard analog electrical signals.

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Understanding PROFIBUS DP and PROFIBUS PA: Two Key Communication Protocols for Automation

PLC /

PROFIBUS (Process Field Bus) is a widely-used standard for fieldbus communication in industrial automation systems. Developed in 1987 by a group of companies led by Siemens and supported by several research institutes, PROFIBUS is a crucial technology in industrial control systems. It is important to note that PROFIBUS and PROFINET (used in industrial Ethernet) are

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The Advantages of Dual Flange Level Transmitters in Industrial Applications

Level meter /

Dual flange level transmitters are essential instruments in the industrial measurement landscape, widely employed for monitoring liquid levels, density, and pressure differences in various applications. Their robust design and advanced capabilities make them particularly suitable for demanding environments involving corrosive, viscous, or high-temperature and high-pressure media. This article explores the advantages of dual flange level

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The Significance of Pressure and Flow Measurement in Force Calibration

Instrumentation /

In the field of precision metrology, force calibration plays a critical role in ensuring the accuracy and traceability of force-measuring instruments such as load cells, force transducers, and material testing machines. While force is the primary quantity under evaluation, the measurement of pressure and flow is of fundamental importance within force calibration systems. These auxiliary

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Why Should the Circuit Be Powered Off When Measuring Resistance with a Multimeter?

Instrumentation /

When using a multimeter to measure resistance, it is essential to power off the circuit.✅ For safe and accurate resistance measurements, we recommend using a reliable instrument like the Fluke 117 Digital Multimeter along with proper insulated gloves. 1. Ensuring Measurement Accuracy Accurate resistance measurement requires a controlled environment, which is compromised if the circuit

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Do Smart Positioners Differ Between Linear and Rotary Applications?

Instrumentation /

When working with control valves and actuators, a common question arises:Do smart valve positioners come in different types for linear and rotary motion?The answer is yes—while the internal control principles remain similar, smart positioners are specifically designed to suit linear and rotary actuators differently. What is a Smart Positioner? A smart positioner is a digital

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Difference Between Control Scheme and Interlock Loop

PLC /

In industrial automation and process control systems, the terms “control scheme” and “interlock loop” are often used, but they refer to different aspects of a system’s logic and safety design. Understanding their differences is important for proper system design, operation, and communication. 1. Control Scheme A control scheme (or control strategy) is the overall plan

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