Instrumentation

Newly manufactured instruments for the chemical industry must undergo certification and calibration before they are put into use. This is crucial for ensuring the accuracy, reliability, and suitability of the instruments under actual working conditions. The need for certification and calibration can be understood in several key aspects: 1. Differences Between Factory Testing and Actual […]

In Gas Detection Systems (GDS), the stability of the zero-point is essential to ensure accurate measurement and reliable alarm behavior.When the zero point drifts, the detector may trigger a false alarm when there is no gas present, or fail to alarm even when a hazardous concentration exists.This creates potential safety risks in industrial environments. This

When a new industrial plant or production unit is ready for commissioning, the instrumentation system plays a crucial role in ensuring safe startup and stable operation. Any mistakes in installation, wiring, calibration, or control logic may lead to inaccurate measurement, poor control performance, equipment damage, product quality issues, or even safety incidents. This article provides

Introduction The Safety Instrumented System (SIS) serves as the last line of defense for process plants. It continuously monitors critical process parameters and takes automatic action to prevent hazardous events. Proper maintenance and inspection of SIS are crucial to ensure its reliability and to maintain the required Safety Integrity Level (SIL).This article explains the core

Electrical conductivity (EC) is an essential physical parameter used to characterize the ion concentration and soluble inorganic salt content in water solutions. It is widely applied in industrial wastewater treatment, reverse osmosis (RO) and ultrapure water systems, cooling water management, municipal wastewater plant process control, and environmental discharge regulation. Unlike experimental water quality indicators such

Overview Control system inspections are essential for preventing failures and ensuring system reliability. A standardized process should be established across three main aspects: hardware, software, and functionality. 1. Preparation for Inspection Tools and Instruments: Multimeter Signal generator Programming software (e.g., PLC programming software) Calibration instruments (e.g., Fluke 754) Documents: Control system schematics I/O list Inspection

Introduction to Equipment Inspections The equipment inspection system is a management method where specific parts of equipment are checked periodically according to certain standards to detect potential faults early. This allows for timely repairs and adjustments, ensuring that the equipment maintains its prescribed functions. It’s important to note that equipment inspection is not just a

The management of spare parts for instrumentation in chemical plants is crucial for ensuring the stability of production processes, controlling maintenance costs, and maximizing economic efficiency. While maintaining a large inventory might tie up substantial funds and warehouse space, insufficient spare parts can lead to costly unplanned downtime, which can far exceed the value of

1. Overview of Electric Heat Tracing Systems Electric heat tracing systems are widely used in chemical, petrochemical, coal-to-chemicals, refining, and water treatment industries to prevent pipeline freezing, maintain process temperature, and ensure stable plant operation during cold weather. Based on heating characteristics and construction, heat tracing cables are mainly classified into: Self-regulating (Self-limiting) Heat Tracing

Client Inquiry: This is a very typical and often overlooked issue in engineering sites. In a temperature measurement system, the Temperature Well, though a small metal component, plays a critical role in the overall instrument system. It is responsible for protection, heat transfer, support, and safety isolation. In other words, the Temperature Well not only