Basic information of the altimeter
Measurablerange–1 000 to 32 000 ft
Accuracy
assurance
temperature
–4 °F (–20 °C) to 104 °F (40 °C)
Unit for
indication
25 ft
Assured
accuracy
± ([Altitude difference from the
point altitude calibration was
executed] x 2% +50) ft
•The accuracy is guaranteed when temperature is constant after altitude calibration.
•The assured accuracy is that of altitude difference from the altitude calibration point, not
accuracy of measured altitude to actual one.
Example: Error range at 1 700 ft height when altitude was calibrated at a point of 1 000 ft
height
(700 – 500) x 2% + 50 =19 Thus the assured accuracy is ±64 ft and error range is 1 636 to 1
764 ft.
Information
72
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