How should you verify fuel and air supply pressures are within safe operating ranges?

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Ensuring safe operation means confirming that fuel and air pressures are within the approved ranges using properly calibrated gauges and documented target values. Calibrated gauges provide accurate readings, and comparing those readings with the standard operating procedure values gives a concrete, approved reference. Running pre-show pressure checks ensures the system is in the correct state before a show and catches drift or faults early. Visual indicators on a single gauge can be misleading and do not guarantee accuracy or alignment with SOP values, and relying on past performances doesn’t reflect current conditions. Ignoring small deviations is unsafe because even minor pressure differences can affect flame behavior.