Yokogawa Electric Corporation’s ProSafe-RS SIL2 wireless gas detection system consists of a newly enhanced version of the ProSafe-RS SIL3 safety instrumented system (R4.03.10), Yokogawa field wireless network devices, annunciator panels, and GasSecure GS01 or GS01-EA wireless gas detectors. For this system, Yokogawa has established a total solution that includes both consulting and engineering.
In energy and basic materials industries such as oil, gas and petrochemicals, a safety instrumented system is employed to initiate a safe emergency plant shutdown when a critical failure is detected, and to initiate the operation of facilities that can extinguish or prevent the spread of a fire.
A field wireless system consists of field devices that are able to communicate wirelessly with a monitoring and control system. Wireless devices have a number of advantages, such as allowing installation in difficult to access locations and the reduction of installation costs, and they are increasingly seen as essential elements in plant safety solutions. This is a particularly important consideration with gas detection systems, whose operation can be easily impacted by factors such as installation location and ambient conditions. And even after system installation, ongoing efforts to optimise its overall configuration may necessitate occasional changes in the location and number of detection devices. The use of wireless technology eliminates the need to worry about wiring and thus greatly facilitates the process of moving or installing additional detection devices.
To achieve SIL2 level risk reduction when using wireless gas detectors with a safety instrumented system, communication protocols that comply with the functional safety requirements specified in the IEC 61508 international standard are required. To meet this need, Yokogawa provides a SIL2 wireless gas detection system based on a new version of the ProSafe-RS safety instrumented system that links to field devices using an IEC 61508 compliant communication protocol.
Features of the system
The ProSafe-RS SIL2 wireless gas detection system consists of a new version of the ProSafe-RS safety instrumented system, R4.03.10, enhanced to add support for an IEC 61508 compliant safety communication technology used in distributed automation, annunciator panels, ISA100 Wireless compliant field wireless devices, and GasSecure GS01 or GS01-EA wireless gas detectors.
Total system solution including both consulting and engineering
Through the use of wireless technology, the ProSafe-RS SIL2 wireless gas detection system allows increased flexibility with the configuration of detection devices, and will be suitable for use as a fire and gas system, and emergency shutdown system, thanks to its achievement of SIL2 risk reduction. Based on its knowledge of each of this system’s components and its expertise in production control, safety instrumentation, and field wireless engineering and consulting, Yokogawa offers a total system solution that includes customer support.
Enhanced operating efficiency
On the Yokogawa Centum VP integrated production control system screens, operators will be able to monitor the operation of the ProSafe-RS SIL2 wireless gas detection system, as well as that of any conventional wired gas detection system. Since the GasSecure GS01 or GS01-EA wireless gas detector uses the same faceplate as a wired gas detector, operators will have no trouble identifying any changes in the detector’s status, thus helping to prevent errors that can result from the misinterpretation of information.
Improved maintenance
With Centum VP, operators will have on-screen access to information on the status of all network devices, the charge remaining on the gas detector batteries and the status of wireless communications, and thus will be able to detect and respond to any abnormality. Thanks to this functionality, more efficient maintenance plans can be drawn up that, for example, will require fewer periodic checks.
For more information contact Christie Cronje, Yokogawa South Africa, +27 (0)11 831 6300, [email protected], www.yokogawa.com/za
| Tel: | +27 11 831 6300 |
| Fax: | +27 11 86 411 8144 |
| Email: | [email protected] |
| www: | www.yokogawa.com/za |
| Articles: | More information and articles about Yokogawa South Africa |
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