Honeywell SPZ-8000 Pilot's Manual page 42

SPZ--8000 Digital Integrated Flight Control System
The barometric altimeter has the following features:
Counter drum display of barometrically corrected pressure altitude
D
from the DADC, marked in 20--foot increments.
Pointer display of altitude between 1000--foot levels with 20--foot
D
graduations.
Black--and--white crosshatch in the left--hand digit position of the
D
counter display for altitudes below 10,000 feet.
Barometric pressure counter, set by means of the BARO knob, that
D
displays barometric pressure in inches of mercury and millibars.
Failure warning flag that is displayed when one of the following
D
occurs:
— The error between the altitude displayed and the altitude signal
received is excessive
— The DADC goes invalid
— The barometric altimeter loses primary power.
Altitude alert annunciator that lights when the aircraft is within 1000
D
feet of the preselected altitude during a capture maneuver.
NOTE: The light goes out when the aircraft is within 250 feet of the
selected altitude. A momentary audio alert is a backup
indication of when the aircraft is 1000 feet from the
preselected altitude, or when it deviates more than 250
feet from the selected altitude after capture.
Air Data System (ADS)
3-4
A28--1146--055
REV 2