01Challenge

Instrumentation engineers at oil, gas and energy sites calculate current loops, check intrinsic safety and look up instrument data in scattered references — often where there is no connectivity. They needed a single tool that works offline on a phone.

02Solution

• A 4–20 mA loop calculator with NAMUR NE43 diagnostics
• An IEC 61508 SIL calculator: PFD and RRF for 1oo1, 1oo2, 2oo2 and 2oo3 architectures
• Intrinsic safety checks, an IEC 60079 explosion-protection marking decoder and cable calculations
• An ISA-5.1 symbol reference, an instrument database from leading manufacturers and a bilingual glossary
• Tag recognition right in the browser: instrument tag and Ex marking from a photo
• PDF protocols, team accounts, a shared site instrument database and a sync API

03Results

• The app is in production, works offline and syncs reference data incrementally
• Automated tests, static security analysis and dependency audits in CI
• One-command deployment