Operator Interfaces, Switches & Relays


Alarm management

September 2009 Operator Interfaces, Switches & Relays

Web exclusive – read the full paper online.

Alarm definition

An alarm is classified as an event to which an operator must react, respond and acknowledge (not simply acknowledge and ignore) and no plant should have more than six such alarm occurrences an hour. [EEMUA 191 guidelines]

If you have more than that you have got it wrong!

Alarm objective

The objective of an alarm system is to minimise or prevent physical and economic loss through operator intervention.

Note safety takes precedence over economics.

Abstract

The aim of an alarm system is to prevent, or at the very least minimise, physical and economic loss to plant or people through operator intervention in response to a plant condition that has occurred thus making the necessary corrective action optimising production.

Alarm management has new meaning in major process plant disasters of recent years, such as Buntsfield, Chernobyl, BP Texas City, Bhopal and 3 Mile Island to name but a few.

Collaborative work by large process companies, vendors and industry organisations like the Electrical Equipment Manufacturers and Users Association (EEMUA) and the Instrumentation Society of America (ISA); accepting the need for an alarm management strategy; and applying new technology and standards to the process, companies can achieve multiple benefits. These include better productivity, quality improvement, a more motivated and responsible staff, improved profitability and efficiency while minimising the potential liability of management.

To read the full article, visit: http://instrumentation.co.za/+C13096A

For more information contact Ian Loudon, Omniflex, +27 (0)31 207 7466, ianl@omniflex.com, www.omniflex.com



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Safety rope limit switch
September 2020, Anglo Allied Engineering , Operator Interfaces, Switches & Relays
Bernstein has introduced a new rope pull switch that provides safety for conveyor belts or machines.

Read more...
Pump control at a distance
September 2020, Omniflex Remote Monitoring Specialists , Industrial Wireless
The ability to control a pump remotely over distance and without using wires is simple using Omniflex Teleterm Radio RTUs over a licence free band, avoiding administration of radio frequency band use. ...

Read more...
Remote alarm monitoring made simple
May 2020, Omniflex Remote Monitoring Specialists , IS & Ex
Alarms are normally managed on site by personnel charged with supervising the plant/facility and ensuring the continuity of the operation. Alarms are implemented to help manage operations and mobilise ...

Read more...
Powerful dialogue modules for mobile machines
April 2020, ifm - South Africa , Operator Interfaces, Switches & Relays
The new dialogue modules from ifm electronic have been developed for use in cabins and outside vehicles. Thanks to a high protection rating and optical bonding, they are optimally protected against moisture. ...

Read more...
Multifunction pendant improves efficiency
Technews Industry Guide: Maintenance, Reliability & Asset Optimisation 2020, Turck Banner , Operator Interfaces, Switches & Relays
The Direct Select from Turck Banner makes it easy to communicate the critical information staff need to complete tasks. This versatile operator interface can be used to send and receive requests, acknowledgements, ...

Read more...
Wireless control of pumps
February 2020, Omniflex Remote Monitoring Specialists , Industrial Wireless
The ability to control a pump remotely over distance and without using wires is simple using Omniflex Teleterm Radio RTUs over a licence free band, avoiding administration of radio frequency band use. ...

Read more...
Analog display for Industry 4.0 applications
February 2020, ifm - South Africa , Operator Interfaces, Switches & Relays
The new multifunctional display from ifm electronic is more than just a visual indicator. It pre-processes digital signals in a decentralised manner and, if necessary, passes this information on to a ...

Read more...
The importance of up-to-date alarm annunciators
January 2020, Omniflex Remote Monitoring Specialists , IS & Ex
At 1.23 pm on Sunday, 24 July 1994, twenty-six people were injured when an explosion erupted through an oil refinery in an otherwise quiet corner of South Wales in the United Kingdom. The site was occupied ...

Read more...
RS introduces flush-mount devices for smart manufacturing
November 2019, RS Components SA , Operator Interfaces, Switches & Relays
RS Components has added the Schneider Electric Harmony XB4F series of flush mounting pushbuttons, selector switches and pilot lights to its product portfolio. Designed for use in industrial automation ...

Read more...
Time synchronise your key remote sites
November 2019, Omniflex Remote Monitoring Specialists , Sensors & Transducers
Managing processes where root cause identification is rapidly identified can generate substantial savings though improved productivity and implementation of planned preventive maintenance schedules. Knowing ...

Read more...