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RADIO ALTITUDE DISPLAY The PFD radio altitude display is presented as both a digital and moving tape readout. The digital readout is displayed from -20 to 2500 feet above ground level (AGL), in the lower center part of the ADI ball. To set the RA/ BARO MIN, or MIN ALERT, push the REFS button on the DCP to display and scroll through the menu pages on the PFD. Rotate the MENU knob to position the cyan cursor box around the selectable value for the RA/BARO MINS. The PUSH SELECT button on the DCP selects the next MIN ALERT option in the sequence. Rotating the DATA knob, on the DCP, increases or decreases the values to be set. To change a value, the cyan selection box must be moved to that value. The selected value shows in large cyan text; non-selected text will show in small white text. The menu pages are automatically removed from the PFD 20 seconds after the last activity. RADIO ALTITUDE FLAG If the radio altitude data is invalid, a red boxed RA label is displayed and the radio altitude tape and digit readouts are removed. RA MIN The digital range can be selected from 0 to 999 feet and is set on the REFS menu. When the aircraft descends to decision height, an amber boxed MIN indication is displayed when selected minimums are reached. BARO MIN BARO MIN has a range of 0 to 15 000 feet and is set on the REFS menu. The selected minimums will display in cyan as MIN XXX RA or MIN XXX BARO, depending on which was set. The XXX represents the selected digital value. As minimum descent altitude is approached, the cyan minimums pointer appears on the altitude tape. When the aircraft reaches minimums, a flashing amber MIN label is presented on the right edge of the attitude indicator. AIR DATA FLAGS When ADC airspeed, altitude or vertical speed data is invalid, red air data flags are presented to replace the affected systems information. Volume 2 Flight Crew Operating Manual May 06/2005 CSP 100-6 REV 2 11-01-10 AIR DATA SYSTEM DESCRIPTION |
