ISA18, Instrument Signals and Alarms

Scope

This committee develops standards, technical reports, and guidelines for alarm systems including annunciators, process automation systems, and the general development, design, installation, and management of alarm systems in the process industries.

Purpose

To establish terminology and practices for alarm systems, including the definition, design, installation, operation, maintenance and modification and work processes recommended to effectively maintain an alarm system over time.

Current Activities

The committee is focused on the development of the revision of ISA-18.1-1979 (R2004), Annunciator Sequences and Specifications and the development of six technical reports for ISA-18.02, Management of Alarm Systems for the Process Industries. The following is a list of the current working groups.

ISA18.1 – WG to revise “Annunciator Sequences and Specifications”
WG1 – Alarm Philosophy
WG2 – Alarm Identification and Rationalization
WG3 - Basic Alarm Design
WG4 – Enhanced and Advanced Alarm Methods
WG5 – Alarm Monitoring, Assessment, and Audit
WG6 - Alarm Design for Batch and Discrete Processes

More information on each working group can be found on the related page.

The committee has wide representation from users, vendors and consultants. Co-Chairs Donald Dunn and Nicholas Sands can provide further information.

If you are interested in participating in one of these groups, please contact one of the co-chairs to express interest.

Next Meeting

The ISA18 committee met October 17, 2011 in Mobile, Alabama in conjunction with ISA Automation Week. The next meeting is in June 2012 at the Hyatt Regency La Jolla in San Diego, CA in conjunction with the ISA Summer Leaders Meeting.

Status

The ISA18 committee published ANSI/ISA-18.2 in 2009. At the June 15, 2009 meeting, the committee formed 7 working groups; 6 working on technical reports and 1 working on review of ISA-18.1-1979 (R2004). The working groups reported significant progress during the October 2011 meeting.

TR5 has been completed and approved. Work continues on the other technical reports. Most are expected to be published in 2012.

Standards

ISA-18.1-1979 (R2004), Annunciator Sequences and Specifications. This standard is primarily for use with electrical annunciators that call attention to abnormal process conditions by the use of individual illuminated visual displays and audible devices. Annunciators can range from a single annunciator cabinet, to complex annunciator systems with many lamp cabinets and remote logic cabinets. The sequence designations provided can be used to describe basic annunciator sequences and also many sequence variations.

ANSI/ISA-18.2-2009, Management of Alarm Systems in the Process Industries. This standard provides requirements and recomendations for the activities of the alarm management lifecyle. Lifecycle stages include philosophy, identification, rationalization, detail design, implementation, operation, maintenance, monitoring & assessment, management of change, and audit.

Membership

The ISA18 committee is open to new members with an interest in alarm management. The membership form is below.

Related Files

ISA18 Membership Form (Microsoft Word Document)

List of Standards for Committee

Contacts:

Saad Al-Abbud Information Member Saudi Aramco Phone: +966 387 56739	Thamer Al-Suwaidi Information Member YANPET-SABIC Phone: 0096643965382 Fax: 0096643965557
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