Omniflex alarm annunciators installed by Chevron
An
Omniflex (UK) product story
Edited by the Processingtalk editorial team
Nov 10, 2008
Omniflex has revealed that its Omni 16C safety rated alarm annunciators have been installed by Chevron at its sites in South Africa, Africa and Pakistan.
Chevron embarked upon a series of overfill protection projects to ensure compliance of all its storage sites in line with recommendations made in the post-Buncefield 'Recommendations on the Design and Operation of Fuel Storage Sites' report.
Chevron chose Omniflex to provide the alarm systems for these projects.
The solution was based upon the SIL1 assessed Omni16C alarm annunciator.
Installations based on this solution are completed or underway in storage sites throughout Africa and Pakistan.
Omniflex provided full system integration and supply of pre-wired panels with Omni16 annunciators for the applications.
The Omni16C alarm annunciators were supplied in panels equipped for 16, 24, or 32 monitor points from the fail-safe level measurement transmitters fitted to the bulk terminal storage tanks.
The level transmitters provide contact outputs to high and high-high level alarms, which are hardwired to the safety rated Omni16C annunciators.
The Omni16C provides the audible and visual alarm status indication required to draw operational staff's attention.
In some cases a GSM-based SMS alarm message is also generated to draw the attention of operational staff off site.
The SMS alarm messaging was implemented using the Omniflex Silent Sentry Alarm Monitor connected directly to the Modbus communications port of the Omni16C alarm annunciators.
The SMS alarm messages require an acknowledgement just as the annunciators do.
The Silent Sentry Alarm Monitor will escalate unacknowledged alarms to up to 10 other mobile phone numbers in its escalation list ensuring that alarms are responded to.
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