Calculators
Safety and SIL Calculators
Functional safety, reliability and hazardous area calculations. Every tool shows the formula, a worked example and the standard it is based on.
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All Safety and SIL Tools
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SIL Calculations7
SIL CalculationsPFDavg and SIL CalculatorPFDavg, 1oo1, 1oo2, 2oo3SIL CalculationsLOPA SIL Target CalculatorLOPA, IPL creditSIL CalculationsSafe Failure Fraction and HFT CalculatorSFF, Diagnostic coverageSIL CalculationsSIL Proof Test Interval Calculator1oo1, 1oo2, 2oo3, λDUSIL CalculationsRisk Reduction Factor and SIL CalculatorRRF, PFDavgSIL CalculationsPFH Calculator for High Demand Safety FunctionsPFH, High demand modeSIL CalculationsPartial Stroke Test PFDavg CalculatorPartial stroke test, Proof test coverage
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Reliability4
Hazardous Areas and Gas5
Hazardous Areas and GasHazardous Area Temperature Class CalculatorT1 to T6, Autoignition temperatureHazardous Areas and GasIntrinsic Safety Entity Parameter CalculatorEntity concept, Uo, Io, PoHazardous Areas and GasMaximum Surface Temperature for Combustible DustCombustible dust, Cloud ignitionHazardous Areas and GasToxic Gas Exposure TWA Calculator8 hour TWA, Exposure limitHazardous Areas and GasOxygen Depletion Calculator for Inert Gas ReleasesOxygen deficiency, Nitrogen release
Frequently Asked Questions
Are these safety and sil calculators free?
Yes. All calculators on instrumentationblog.in are free, run in your browser and need no sign up.
How accurate are the safety and sil calculators?
Each tool follows the published standard or textbook equation for its topic, shows the formula and the calculation steps, and has been checked against worked examples. Always confirm critical designs against the relevant standard and manufacturer data.
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