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Maintenance Guidelines for Pressure Switches

Pressure Transmitter /

1. Pre-Operation Preparation and Safety Confirmation 1.1 Communication & Work Permits Coordinate with process personnel to confirm that pressure switch removal will not trigger system interlocks, shutdowns, or abnormal process conditions. Ensure control systems are in “manual” mode or interlocks are bypassed. Obtain necessary work permits such as: Equipment Maintenance Permit Hot Work Permit (if […]

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Precautions for Pressure Gauge Maintenance and Inspection

Pressure Transmitter /

Pressure gauges are critical instruments for monitoring pressure in various industrial systems. To ensure measurement accuracy, personnel safety, and equipment reliability, it is essential to follow standardized procedures during maintenance and inspection. This guide outlines key precautions and best practices. 1. Safety Preparation 🔌 Power Isolation and Pressure Release Disconnect power supply to related equipment

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How to Select Flowmeters for Different Liquid Media

Flow meter /

In industries such as chemical processing, water treatment, energy, and food manufacturing, liquid flow measurement is a critical part of process automation. However, liquid media can vary greatly in properties—such as conductivity, viscosity, purity, or corrosiveness—so selecting the right flowmeter requires a comprehensive understanding of both the fluid and the working conditions. This guide provides

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Precision in Industrial Temperature Control: The Critical Role of Thermocouple Calibration and Verification

Thermocouples /

From the scorching furnaces of steelmaking plants to the intricate reactors of chemical processing, and even the thermal protection systems of aerospace vehicles, accurate temperature measurement is vital. It directly influences product quality, operational safety, and technological innovation. As one of the most widely used temperature sensors in industry, the metrological performance of thermocouples plays

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What Are Axial and Radial Thermometers? A Practical Comparison

Temperature transmitter /

In industrial and daily temperature monitoring, axial and radial thermometers are two common types distinguished by the orientation of their dial head relative to the temperature sensing element. This difference significantly affects their installation and application scenarios. This article explores the differences across four key dimensions: working principle, structural characteristics, application scenarios, and selection guidelines.

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Signal Amplification and Functional Role of Temperature Transmitters in Industrial Measurement

Temperature transmitter /

1. Signal Amplification in Temperature Transmitters Temperature transmitters play a vital role in industrial automation by converting physical temperature signals into standardized electrical signals for monitoring and control. Unlike sensors that typically generate raw signals, transmitters integrate multiple functions such as signal amplification, cold-junction compensation, linearization, and current output conversion. 1.1 Thermocouple Temperature Transmitter A

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Using Guided Wave Radar Level Meters to Measure Oil Tank Levels

Level meter /

In modern industrial environments, accurately measuring the liquid level in oil sludge tanks is critical for operational safety, efficiency, and environmental protection. Guided wave radar (GWR) level meters are advanced instruments known for their high precision, reliability, and ability to function in harsh conditions. This article explores the application of GWR level meters in sludge

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Low-Voltage Electrical Design: Selection of Indicator Lights

Instrumentation /

Overview Indicator lights are essential components in electronic and electrical equipment, serving as intuitive visual interfaces that convey the operational status of systems through color changes, blinking, or specific display patterns. Typically utilizing LEDs or traditional incandescent bulbs as light sources, indicator lights work in conjunction with control buttons to visualize signals effectively. They play

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Technical Guide: Explosion-Proof Instruments in Industrial Applications

Instrumentation /

1. Overview of Explosion-Proof Instrumentation Explosion-proof instrumentation is a critical component in hazardous environments such as petrochemical plants, refineries, and chemical processing facilities. Due to their small size, instruments are often overlooked in explosion-proof assessments, yet their potential danger is equivalent to that of larger electrical equipment. The most common explosion-proof types for instrumentation include:

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