Yokogawa to Release SIS SIL2 Wireless Gas Detection System

Yokogawa Electric Corporation announced that it will release the ProSafe-RS SIL2 wireless gas detection system in September. The system will consist of a newly enhanced version of the Yokogawa 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, which are the only devices of this type in the industry that achieve SIL2 risk reduction. GasSecure is a subsidiary of the German company Drägerwerk AG & Co. For this system, Yokogawa will establish a total solution that will include both consulting and engineering.

Development Background
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 will provide a SIL2 wireless gas detection system based on a new version of the ProSafe-RS safety instrumented system that will link to field devices using an IEC 61508 compliant communication protocol.

Features of the System

1. Total system solution including both consulting and engineering

   Through the use of wireless technology, the ProSafe-RS SIL2 wireless gas detection system will allow increased flexibility with the configuration of detection devices, and will be suitable for use as a fire & 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 will be able to offer a total system solution that includes customer support.

2. Enhanced operating efficiency

   On their 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.

3. 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 quickly 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.

    

Major Target Markets and Applications
For use in fire and gas systems (FGS) and emergency shutdown systems (ESD) in process industries, such as oil, natural gas, petrochemicals, chemicals, pharmaceuticals, electric power, and iron and steel.

Keywords: Wireless Technology, Gas Detection System, Network Devices, Annunciator Panels, IEC 61508, ARC Advisory Group.