Excessive wellhead pressure can cause serious consequences to downstream personnel, production and production assets and the environment. It is therefore commonplace to have IEC 61511 compliant protection systems. Companies implement various strategies but most common are 1oo2 or 2oo3 architectures for compliance to SIL 2 or SIL 3.
The STA Functional Safety Limit Alarm Trip logic solver was designed for such SIF (Safety Instrumented Function) executions and is certified by exida for use in Safety Instrumented Systems as SIL2/3 capable. The simple push-button field programming or easy to use free PC programming software user interface is most beneficial to a cross-section of users. Plus, its high ambient temperature specifications and suitability for installation in Class I, Div 2 / Zone 2 environments make it ideal for any upstream installation. The STA also has high RFI and EMI Immunity to minimize nuisance trips due to noisy environments.
Key attributes:
- Exida approved for use in a Safety Instrumented Systems
- The SIL 2/3 Capable STAs are much simpler to program than safety PLCs and cost significantly less
- Suitable for extreme environments
