Condition and Machine Monitoring

Condition Monitoring Software made Easy - Researchers at the Fraunhofer Institute for Experimental Software Engineering IESE in Kaiserslautern, Germany, have developed a condition monitoring system for Lösi GmbH, which can adapt to various facilities without the need for manual programming. From ISA.

Machine Condition Monitoring Technical Library - Machine Condition Monitoring is the process of monitoring the condition of a machine. Vibration, noise, and temperature measurements are often used as key indicators of the state of the machine. Trends in the data provide health information about the machine and help detect machine faults early, which prevents unexpected failure and costly repair. This link...

Electrical Equipment for Hazardous Areas - Classification, Design and Standards

Hazardous Areas Technical Guide - This excellent 90 page technical guide from Weidmuller is a large pdf download at 5 Megs, however it is worth the wait!

Intrinsic Safety, Barriers and Isolators - A full page of great links.

A Common Regulatory Framework for Equipment Used in Environments with an Explosive Atmosphere - This is a publication that helps address the hazards in environments with a high risk of...


The objective of the IECEx Scheme is to facilitate international trade in electrical equipment intended for use in explosive atmospheres (Ex equipment). The IECEx Scheme provides the means for manufacturers of Ex equipment to obtain certificates of conformity that will be accepted at national level in all participating countries.

IECEx 01

IEC Scheme for Certification to Standards relating to Equipment for use in Explosive Atmospheres (IECEx Scheme) - Basic Rules


Intrinsic Safety, Barriers and Isolators

Intrinsic Safety (IS) uses the concept of limiting the amount of energy at the Hazardous Area so that it is incapable of ignition. Appropriately designed  Intrinsically Safe devices depending on their certification can be used in all zones and are categorised as;

  • Exia (Zones 0, 1 and 2) 
  • Exib (Zones 1 and 2)
  • Exic (Zone 2)

ISA-RP12-6 defines intrinsically safe equipment as "equipment and wiring which is incapable of releasing sufficient...

Motion Control

The following excellent information on Motion Control including Basics of Motor Control, Filtering, Adaptive Control, Positioning components, Synchronising, Loop Variations and Backlash Instability can be found at the Motion Controllers Reference Centre.

I nformation on Microcontrollers, Dedicated Boards, Pneumatic Controls, Special ICs, Cell Controllers, Timers and Counters, Board Level, Programmable Controls and Cable Carriers can be found at the Motion Controllers...