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Engineering Toolbox/Five-Point Calibration Check

Instrumentation & Calibration

Five-Point Calibration Check

Check 0, 25, 50, 75 and 100% of span against one defined tolerance.

Calibration setup

Enter range, tolerance and observed indication.

% span

Result stays beside the setup

Work without losing your inputs.

The assessment appears here while the five entered readings remain visible. Detailed point-by-point results stay directly below.

Calculation basis

Expected = LRV + (% point / 100) × (URV − LRV)
Error = Observed − Expected
% span error = Error / |URV − LRV| × 100

Scope

This tool evaluates one ascending five-point set. Hysteresis, repeatability, As-Found/As-Left comparison and uncertainty belong in the full calibration workflow.

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