Instrumentation and control
Calibration and errors
Absolute, relative and full-scale errors and hysteresis.
Instrumentation and control
Absolute measurement error
Δ = Xₘ − Xᵣ→Instrumentation and controlRelative measurement error
δ = Δ / Xᵣ × 100%→Instrumentation and controlFull-scale error
γ = Δ / Span × 100%→Instrumentation and controlInstrument hysteresis
H = |X↑ − X↓| / Span × 100%→Instrumentation and controlMeasurement correction
C = Xᵣ − Xₘ→Instrumentation and controlAccuracy class check
|γ| ≤ class→Instrumentation and controlReading variation
H = |X↑ − X↓|→