Relay circuits
  • PLC Tutorials

Relay circuits

Relays may be connected together to perform logic and control functions, acting as logic elements much like digital gates (AND,…

  • Pressure Measurement

Pressure and Temperature Gauges

PRESSURE GAUGES Bourdon tube pressure gauge Diaphragm pressure gauge Capsule pressure gauge Bourdon tube pressure gauge with chemical seal Differential…

  • Digital Electronics

Logic Gates

The word “discrete” means individual or distinct. In engineering, a “discrete” variable or measurement refers to a true-or-false condition. Thus,…

  • Standards

Pre-Startup Safety Review (PSSR)

The term Prestartup Safety Review (PSSR) first received prominence in the process industries with the introduction of the Process Safety…

  • Formulas

Siemens Pressure Transmitter with Remote Seals Calculations

Remote seals of sandwich design are fitted between the connection flange of the measuring point and a dummy flange. Remote…

  • Pressure Measurement

Gage and Absolute Pressure Transmitters Principle

Gage and Absolute Pressure Transmitters : Sensor Design for Gage Pressure Measurement The input pressure (pe) is transferred to the…

  • Level Measurement

Siemens Differential Pressure Transmitter Calculations (Flange Type)

Siemens Pressure transmitters / differential pressure Transmitters, for flange type (Without remote seal) The Transmitter Lower Range Value (LRV) and…

  • Standards

Standard Temperature and Pressure Conditions

Standard temperature and pressure conditions as well as normal temperature and pressure conditions are used as reference points in thermodynamics…

  • Temperature Measurement

Why have been limits imposed on the frequency ratio for thermowells?

In 1995, an accident caused due to breaking thermowells in Monju Nuclear Plant reactor, led to very serious damages to…

  • Standards

NFPA Standards (National Fire Protection Association Standards)

NFPA standards from National Fire Protection Association provide guidelines for incorporating fire protection safety measures in industrial systems. Classification of…