instrumentation

Difference between 2 wire & 4 wire transmitter current loops

The current loop uses DC power because the magnitude of the current represents the signal level that is being transmitted. If AC power was instead used in the loop, the magnitude of current would be continuously changing, making it difficult to discern the signal level being transmitted.In this session we are gonna discuss about Difference between …

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PLC program for a batch process

Introduction Hey guys in this session we are gonna discuss about a PLC program for a batch process.In my earlier posts i mentioned the basics of PLC so you can check that out by clicking the link below https://automationforum.co/2018/02/programming-logic-devices-plc.html so lets discuss about the program   Procedure Automatically injects the container with liquids A and …

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Interface Level Measurement

INTRODUCTION Differential pressure (DP) transmitters are used to measure the interface of two fluids that have different specific gravities (S). To make an interface measurement, the overall level must be at or above the low pressure tap at all times. It is important that the level be large enough to create a reasonable DP between …

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Introduction to Instrumentation Tubing

Introduction Impulse sensing lines are the lines containing process fluid which run between the sensing instruments and process tapping points, and are usually made of tubing/piping, valves and tube fittings.so tubing is one of major things that used along with the instruments. Difference between a pipe and a tube  The fundamental difference between pipe and …

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An overview of industrial communication network

Introduction The industrial automation systems is divide into several hierarchical level.Each of the stage or level has an appropriate communication level.which stage or level different requirements on the communication network.Industrial communication may be classified in different categories based on functionality-field-level networks,control level networks and information-level networks.at lowest level we use sensor and actuator buses to …

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LabVIEW Basics

What is LabVIEW? LabVIEW is a graphical programming language that uses icons instead of text lines to create applications. Unlike text-based programming languages, where instructions determine program execution, LabVIEW uses data flow programming, where the data flow determines execution. In LabVIEW, you build a user interface using a set of tools and objects. The user …

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Oxygen analyzers | Zirconia analyzer & magnetic wind method

Oxygen analyzers are devices that measure the level of oxygen in a system, therefore, determines if the level needs to be increased or not. Oxygen analyzers, in turn, use a kind of oxygen sensor for their functioning. Oxygen analyzers provide valuable measurements in combustion control, process quality, safety and environmental applications. The methods of measuring oxygen concentration …

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