Why we Measure Control Valve flow coefficient (Cv)?
Control valve Cv is determined by the manufacturer of the valve and can be found on the valve manufacturer's related valve data and specification sheets. Valves are tested by running water…
Circular Chart Recorder Calibration Procedure
Barton Make Circular Chart Recorder. Can you help me out with the calibration procedures ? Circular Chart Recorder Two types of Circular Chart recorders are available for pressure recording. One…
Difference between SR Flipflop and RS Flipflop ?
Flip-flops and latches are used as data storage elements. A flip-flop is a device which stores a single bit (binary digit) of data; one of its two states represents a…
Control Valve Questions and Answers
The below are the latest Control Valve Questions and Answers prepared for your interview preparation. Study about different control valves, control valves basics and control valve related interview questions. Control…
SIS Sensors
Perhaps the simplest form of sensor providing process information for a safety instrumented function is a process switch. Examples of process switches include temperature switches, pressure switches, level switches, and…
SIS Final Control Elements
When a dangerous condition in a volatile process is sensed by process transmitters (or process switches), triggering a shutdown response from the logic solver, the final control elements must move…
What is Safety Instrumented Functions ?
A Safety Instrumented Function, or SIF, is one or more components designed to execute a specific safety-related task in the event of a specific dangerous condition. The over-temperature shutdown switch…
PLC Logic for Automatic Bending Machine for Exhaust Pipe
Automatic bending machine This is PLC Program for automatic bending machine for exhaust pipe. Problem Description The bending of exhaust pipes is to be controlled using PLC. The bending procedure…
What is SCADA ? How does SCADA Works ?
SCADA stands for Supervisory Control and Data Acquisition but it is a term often used for data collection and presentation. What is SCADA ? SCADA is normally a software package…
Normally-open and Normally-closed Switch Contacts
Perhaps the most confusing aspect of discrete sensors is the definition of a sensor’s normal status. Electrical switch contacts are typically classified as either normally-open or normally-closed, referring to the open…
