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Engineering tools

Small calculators and references for the people who specify, maintain and buy process instrumentation. They run in your browser, nothing is uploaded, and every figure shows where it came from.

  • Compressed air cost & CO₂ calculator

    What your positioners, I/P converters and air leaks cost in compressor electricity and CO₂ each year.

    Pick the installed models from 16 manufacturers, enter your tariff and running hours. Get air per year, kWh, rupees and tonnes of CO₂, and what low-bleed replacements would save. Print a one-page snapshot or send it as a link.

  • Positioner air consumption reference

    Steady-state bleed of 88 positioners and I/P converters, as each manufacturer states it, with the source.

    Fisher, Samson, Siemens, ABB, Masoneilan, Flowserve, Neles, Azbil, Yokogawa, Foxboro, Fairchild, ControlAir, Norgren and the full Rotork YTC range. Every figure links to the datasheet it came from.

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