Search Results for: 4
- Electrical
Why three-phase voltage is 440? How three-phase power is different from a single-phase power?
What is three-phase power? In a single-phase AC circuit two wires would be connected to the source of the electricity…
Read More » - Instrumentation
4 Common mistakes in Instrumentation sensor selection
Instrumentation and control engineering deals with the measurement and control systems which are crucial and very complicated in process control…
Read More » - PLC
PLC learning series 14: Ladder logic Instructions
PLC ladder logic programming language is a collection of many instruction sets. To become a programmer in ladder logic one…
Read More » - Instrumentation
45 ISO standards for Industrial Pipelines
1. ISO 7-1:1994-05 Pipe threads where pressure-tight joints are made on the threads – Part 1: Dimensions, tolerances and designation…
Read More » - PLC
PLC learning series 4 : How a ladder logic diagram works? How to read ladder logic ?
How a Ladder Logic diagram works? Ladder diagrams describe programs in graphical form, used in PLC programming. This diagram is…
Read More » - Control Valve
How a Valve is controlled using a 4-20mA loop
Table of ContentsSignal conversionControl Valve Connection 4-20 mA Current LoopParts of 4-20 mA Current loopSensorTransmitterPower SourceLoopReceiverAdvantages & Disadvantages of 4-20…
Read More » - Automation
4-20mA Analog Inputs from Transmitters measuring
A DCS, PLC, single-loop controller or other device analog input accepts an electronic signal, such as 4 to 20 mA…
Read More » - Communication
Difference between RS232 and RS485
RS232 and RS485 are standards for data cables. To exchange data between nodes in a network, the most commonly used…
Read More » - Communication
IEEE 488 – Introduction
The IEEE-488 standard interface bus, popularly known as GPIB (General Purpose Interface Bus), was originally developed by Hewlett-Packard to allow…
Read More » - Automation
Characteristics of 4-20mA signal
The 4-20 mA pattern can be characterized by the current loop used for the interconnection of the field devices. In…
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