Instrument Apps Hub
Welcome to the Instrument Apps Hub: calculator apps, simulators and essential tools for the process industries, built to support the instrumentation profession. More apps are on the way.
Available Apps
Each app opens instantly and focuses on one job: simple, fast and accurate for field engineers and technicians.
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About This App
Created by Sheik Abdullah, I&C professional in power, oil & gas and energy: learning every day, sharing every step.
This tool is built to support the global instrumentation community — helping engineers, technicians, and students work smarter, faster, and with confidence.
I welcome your feedback, suggestions, or ideas for improvement. Please share your thoughts at info@instrumentationhub.org or connect on LinkedIn.
More at Instrumentation Hub
Study guides on pressure, flow, level, temperature, transmitters and control valves, a community forum for field questions, and a help desk. All at instrumentationhub.org
References. Thermocouples: NIST ITS-90 reference functions. RTDs: IEC 60751 Callendar–Van Dusen. Signal status: NAMUR NE 43. Valve Cv: simplified ISA/vendor equations for first-pass sizing; confirm final sizing to IEC 60534-2-1.
Check results against your own standards before using them for calibration or design.