Industrial control

RTD 2, 3, 4 Wire Sensor Connections

The resistance temperature devices (RTD) can be connected directly to the controller peripheral amplifiers using 2-wire, 3-wire or 4-wire lead…

4 years ago

How to Connect a DP (Differential Pressure) Flow Sensor to a DP Transmitter

The DP Transmitter should be mounted with a manifold block as illustrated in the figure 1(a) below to allow for…

4 years ago

Instrumentation Sensors and Transducers – Multiple Choice Questions & Answers (MCQ4)

The Answers have been provided at the end of the Questions: Q1. Which of the following sensors is used to…

4 years ago

How Signal Processing Circuits are protected from high currents & voltages

Protection against high currents and voltages is a very important requirement for signal processing circuits. A high current can be…

4 years ago

How RS-232, RS-422 and RS-485 Networks are applied in Instrumentation

RS-232 Presently, this standard is known as TIA-232C. These are point-to-point networks with a purpose of connecting only two devices.…

4 years ago

Basic Features of Foundation Fieldbus (FF)

Foundation fieldbus (FF) and Profibus are the two most universal serial data bus formats that are used for interfacing between…

4 years ago

Features of Stepper Motors & How they are applied in Industrial Control

A stepper motor is a permanent magnet or variable reluctance DC motor that has the following characteristics: It is able…

4 years ago

How Servo Motors are used in Process Control

Servo motors are continuous motion mechanisms that use feedback signals to provide position and velocity control in a closed loop…

4 years ago

How to Tune the PID Controller

Before we discuss how to tune the PID controller, let’s look at some basic facts about PID Controller. Basic Facts…

4 years ago

4-20 mA Transmitters (2-wire, 3-wire and 4-wire Types)

Background of 4-20 mA Signal Transmission Initially signal transmission was dominated by pneumatics before the advent of 4-20 mA signal…

4 years ago