(134a) Top Key Performance Indicators Measurable through Safety Instrumented Systems

Lack of visibility into the operations and maintenance of functional safety equipment introduces significant uncertainty about the safety of the plant. Tier 3 indicators can be considered as either leading or lagging depending on how the data is processed. Leading indicators of Tier 3 are key to preventing Tier 2 or even Tier 1 events. Key Performance Indicators (KPI) are critical to show deviation from the design. This presentation will look at the most common inputs and their importance in maintaining a safety instrumented system.
1. Bypass

2. Faulted Devices

3. Proof Test