What is RJ45 Cable & How to make RJ45 Cable
LAN Cable A local area network is a medium in computer network that links computers in a specific location, like a home, office building,...
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300+ Instrumentation Engineering Interview Questions – Part 4
1. What are leveltrol’s limitations? A leveltrol’s limitations are that it cannot be used for lengths longer than 72 inches. 2. How will you check...
Comparison between Conventional (4-20ma) connection, Foundation-Fieldbus, and HART?
What is a foundation field bus? A field bus can be described as the connection between industrial devices. The major purpose of a field bus...
What is RTD? What is the difference between 2 wire, 3 wire, and 4 wire RTD?
What is RTD? An RTD can be used to detect the temperature, it would vary its resistive property according to the temperature variations. Basically, it...
What is a 2-wire, 3- wire, and 4 – wire transmitter, and how are they different from each other?
A transmitter is an electronic device that would convert the process variables such as frequency, pressure, temperature, and flow to a 4-20mA signal. So this...
How to do the 4-20mA Wiring?
What is the purpose of using a 4-20mA signal in process automation? Industrial automation is carried out by transmitting signals from field devices to the...
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 and the current direction would...
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 strategies. Complicated means it is...
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 have to know more about...