Why 4 to 20 mA used?
Following are the reasons Why 4 to 20 mA used?:- Current signals are often used in sensors because the current response is usually more linear than the voltage response. Current …
Two out of three (2oo3) Logic
Two out of three logic is called the triple module redundancy or triple mode redundancy, in which three independent inputs are connected to a system and the output, comes out …
Hazardous Area Classification
Introduction Hazardous Area Classification is must for the process industries, because there are so many type of electrical, electronic and instrumentation systems, equipment, instruments installed for the processing raw material …
Flow switches
FLOW SWITCHES | What is a Flow Switch? Flow switches are devices that monitor the flow through a channel and send a trip signal to various devices such as Pump.The …
How to Measure Conductivity?
Conductivity measurement is an extremely widespread and useful method, especially for quality control purposes so it is important to know How to measure conductivity? What is conductivity? Conductivity is the ability …
How to control boiler drum level
Drum Level Control Systems are used extensively throughout the process industries and the Utilities to control the level of boiling water contained in boiler drums on process plant and help …
Process control
Principles of Process control In present times, process control plays a vital role in industries. We know that in an early stage, it was being controlled manually but today automatic …
Vibration Switch
What is vibration switch? Vibration switches are instruments which are used to protect rotating machinery against catastrophic failure due to excessive vibration. This is particularly true for large fans as …
Control Valves Accessories
Control Valves accessories (From Samson) are those essential elements without which we cannot expect control valve applications in industries. One of the most common final control elements in industrial control …
Control Valve Problems
Control Valve Problems can have several causes. Here we explain the most common reasons. Mechanical friction Stiction Flashing Cavitation Choked flow Hunting Valve noise Erosion Chemical attack Mechanical friction A …