Optimization of Maintenance Schedule for Safety Instrumented Systems

Engineering maintenance of safety instrumented functions

• The work required to design an adequate platform to support maintenance and operation activities related to safety instrumented systems is frequently underestimated. • Clear objectives and, in consequence, a well-designed strategy supported by a software platform facilitates achieving the required levels of safety and the optimization of resources. • Engineering the maintenance of safety inst...

Selecting Transmitters for Safety Instrumented Systems

Users design safety systems to mitigate the risk of identified process hazards within tolerable levels, using application-specific risk models, defined user inspection schedules, and safety data for the devices under consideration. Some suppliers provide safety data for their devices. However, supplier data, even when validated by a third party, reflects laboratory results, and can be an order ...

Safety Instrumented Systems - Health Monitoring

The unique SIS-Health Monitoring solution is a set of tools and services that enable industry practitioners to measure the status and health of their safety instruments, analyze their reliability and safety integrity, optimize test intervals, and reduce spurious process trips. In addition, the SISHealth Monitoring solution enables the detection of unexpected trends, the maintenance of test freq...

Spurious activations of safety-instrumented systems

Optimization of preventive maintenance schedule and production lot size

In this research, a developed mathematical model is proposed to optimize the preventive maintenance age and lot size for a single-unit production system producing a single item. The system is assumed to start in an in-control state producing items of acceptable quality and then after a period of production time the system may shift to an out-of-control state producing non-conforming items. The ...