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Information
Basic information of the altimeter
Measurable range –1 000 to 32 000 ft
Unit for
indication
• 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.
72
25 ft
Accuracy
assurance
–4 °F (–20 °C) to 104 °F (40 °C)
temperature
± ([Altitude difference from the
Assured
point altitude calibration was
accuracy
executed] x 2% +50) ft
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