Push Button Controls, Annunciators | Honeywell 880 instruction

PRIMUSr 880 Digital Weather Radar System

PUSH BUTTON CONTROLS

The following remotely mounted push buttons control the EGPWS display:

DINHIB (Inhibit) Button -- When active, the push on/push off INHIB button prevents terrain data from being displayed on the radar indicator. When the button is active, the INHIB annunciator lights.

DON (Terrain) Button -- When active, the push on/push off ON button displays terrain on the radar indicator.

ANNUNCIATORS

The following annunciators are displayed on the radar indicator to indicate EGPWS operation:

DFAIL -- The FAIL annunciator indicates that the EGPWS has failed.

DINHIB -- The INHIB annunciator indicates that the INHIB push button has been pushed and is active. When INHIB is annunciated, EGPWS is not displayed on the radar indicator, and the aural annunciators do not sound.

NOTE: The FAIL and INHIB annunciators are often incorporated into the INHIB push button.

DTERR (Terrain) -- The TERR annunciator indicates that the annunciator lamp power is on. It does not indicate the operational status of the system.

DON -- The ON annunciator indicates that the radar indicator is displaying terrain. This ON push button lamp is lit if the ON push button has been pushed and is active, or if an actual Terrain Alert is indicated by the EGPWS system and the terrain is automatically displayed.

NOTE: The TERR and ON annunciators are often incorporated into the ON push button.

Some installation may not contain all of these controls and annunciators, or they may have different names. Most EGPWS installations have additional controls and/or annunciators (i.e., TEST). Refer to the appropriate publication for details.


Enhanced Ground-Proximity Warning System (EGPWS)	A28-1146-102-03
B-2	REV 3

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Honeywell 880 manual Push Button Controls, Annunciators

Contents

Page PRIMUSr 880 Digital Weather Radar System Pilot’s Guide Table of Contents Honeywell Product Support Appendices Federal Aviation Administration FAASection Radar Facts Maximum Permissible Exposure Level List of Illustrations Federal Aviation Administration FAA Advisory CircularsEnhanced GROUND--PROXIMITY Warning Radar Beam Illumination High Altitude Rain Coming From Unseen Dry Hail List of Tables Introduction A28- 1146- 102 System Configurations Efis only Configuration PRIMUSâ 880 Configurations Mode Dual Control Mode Truth TableLeft Right Controller Left Side Right Side RTA Remote Mounted Equipment Model Unit Cockpit Mounted OptionsPrimusr 880 Weather Radar Equipment List Typical PRIMUSâ 880 Weather Radar Components Operating Controls WI- 880 Weather Radar Indicator OperationTypical PRIMUSâ 880 Digital Weather Radar Display Range 3 Gmap Calibrated Gain Rainfall Rate Color Coding Rainfall Rate Color In/hr Mm/hr Fsby Forced Standby TGT Target STB Stabilization Selected Range Minimum Target Target Range Depth NM SCT Scan Sector TRB TurbulenceRange AZ Azimuth Tilt BRT Brightness or BRT/LSS Lightning Sensor System Gain WC- 880 Weather Radar Controller Operation WC- 880 Weather Radar Controller Configurations Tilt Radar SLV LSS Gain EFIS/MFD Radar PRIMUSr 880 Digital Weather Radar System Maximum Permissible Exposure Level Mpel Sect Scan Sector TRB Turbulence Detection Range LSS Lightning Sensor System Option SLV Slave WC- 884 Weather Radar Controller BRT Brightness WC- 884 Weather Radar Controller OperationTGT Target Alert RCT Rain Echo Attenuation Compensation Technique Tilt Mode Rainfall Rate Color In/hr Mm/hr PRIMUSr 880 Digital Weather Radar System Forced Standby Override Hidden Modes Pitch Gain Roll OffsetRoll Gain Pitch Offset PRIMUSr 880 Digital Weather Radar System Normal Operation Preliminary Control SettingsStep Procedure Primusr 880 Power--Up Procedure Cont PRIMUSâ 880 Power- Up Procedure Output Power is Radiated in Test ModeIndicator Test Pattern 120 Scan WX With Text Fault Enabled 319 Efis Test Pattern Typical 120 Scan Shown WX WI--880 Indicator Test Pattern With Text Fault Enabled Radar Mode WeatherStandby REV Test Mode Radar Mode Ground Mapping 4-8 blank Radar Operation Radar Facts Aircraft Heading PRIMUSr 880 Digital Weather Radar System Sea Returns Radar Beam Illumination High Altitude Inch Radiator Tilt Management Radar Beam Illumination Low Altitude Inch Radiator PRIMUSr 880 Digital Weather Radar System Range Scale Line Tilt Limited Earth’s Curvature Ideal Tilt Angle Unaltered Tilt Convective Thunderstorms Tilt Management With Heading Changes Proper Tilt Technique Low Altitude Tilt Management Fast Developing Thunderstorm Rules of Thumb Antenna Size and Impact on Tilt Management Altitude Compensated Tilt ACT Manual Tilt at Low Altitudes Accelerative Error Dynamic ErrorStabilization Pitch and Roll Trim Adjustments Pitch and Roll Trim Adjustments Criteria Stabilization Precheck Stabilization In Straight and Level Flight Check ProcedureLevel Flight Stabilization Check Ground Return Indicating Misalignment Upper Right Symmetrical Ground Returns Ground Return Indicating Misalignment Upper Left Stabilization in Turns Check ProcedureRoll Stabilization Check Roll Stabilization Inoperative 23. The radar unit is in the roll offset In- flight Roll Offset Adjustment Procedure Push the Stab STB button to go to the next menu pitch offset Roll Offset Adjustment Display Final Pitch Offset Adjustment Procedure Pitch Offset Adjustment Roll Gain Adjustment Roll Gain Adjustment Pitch Gain Adjustment Pitch Gain Adjustment Weather Radar Images Interpreting Weather Radar Images PRIMUSr 880 Digital Weather Radar System Radar and Visual Cloud Mass Squall Line Weather Display Calibration Display Levels Related to VIP Levels Typical Variable Gain Control LOW Variable Gain Settings can Eliminate Hazardous TargetsRain Echo Attenuation Compensation Technique React PRIMUSr 880 Digital Weather Radar System React With React SelectedReact on and OFF Indications Turbulence Probability ShadowingDo not FLY Into the Shadow Behind the Cell Probability of Turbulence Presence A Weather Target Turbulence Detection Theory Areas of Turbulence can not Always be Detected by the Radar No Turbulence Total Return Vector Turbulent Turbulence Detection OperationWeather Display With Turbulence PRIMUSâ 880 Digital Weather Radar can only Detect Turbulence Levels From Airman’s Information Manual Hail Size Probability Hail Size Probability Spotting Hail Rain Coming From Unseen Dry Hail Familiar Hailstorm Patterns Overshooting a Storm Short- and Long- Blind Alley Azimuth Resolution in Weather Modes Azimuth Resolution Radome Weather Display Weather Avoidance Tudes WITHIN, NEAR, or Above Storm Cells Do not Leave the Radar in Variable GAIN. SIGNificant Weather MAY not be Displayed DRY Hail can be Prevalent AT Higher Alti Severe Weather Avoidance Procedures 10 3. Interaction With Other Storms. a thunderstorm that is Step Procedure Display Configurations of Individual Echoes Northern HemisphereStorms Situated Behind Intervening Rain Fall MAY be More Severe than Depicted on Typical Hook Pattern Notch Echo, Pendant Shape Avoid V- Notch by 20 Miles Classic Pendant Shape Avoid Pendant by 20 Miles Rain Gradients Avoid Steep Rain Gradients by 20 MilesAvoid ALL Crescent Shaped Echoes by 20 Miles Crescent Shape Line Configurations Line Echo Wave Pattern Lewp Avoid Line Echo Wave Patterns Lewp by 20 Miles Bow- Shaped Line of Thunderstorms Avoid BOW- Shaped Line of Echoes by 20 Miles Turbulence Versus Distance from Storm Core Additional HazardsTurbulence Versus Distance from Storm Edge Ground Mapping Display Ground Mapping Tilt Setting for Maximal Ground Target Display Inch Radiator Range Scale Mpel Boundary Maximum Permissible Exposure Level Mpel In- Flight Troubleshooting Test Mode With Text Faults Enabled Field No Description Fault Data Fields 315 Text Faults Cont Fault Code and Text Fault Relationships IO Fpga REG Text Faults Pilot Messages Describes the pilot messages Honeywell Product Support Honeywell Aerospace Online Technical Publications Web Site Customer SupportCustomer Response Center CRC Abbreviation Equivalent Abbreviations FLTPLN, FP RCT, React Purpose Federal Aviation Administration FAA Advisory CircularsCancellation Appendix a General Background PrecautionsBody Damage Combustible Materials Squall Lines Subject ThunderstormsGeneral Hazards Turbulence Tornadoes Icing Schematic Cross Section of a Thunderstorm LOW Ceiling and Visibility HailEffect on Altimeters Weather Radar Lightning DO’S and DON’TS of Thunderstorm Flying PRIMUSr 880 Digital Weather Radar System Turbulence in Relation to Distance from Storm Core Relationship Between Turbulence and ReflectivityRelationship Between Turbulence and Altitude Turbulence and Echo Intensity on NWS Radar WSR Turbulence Above Storm Tops Turbulence in Relation to Distance from the Storm EdgeTurbulence below Cloud Base Hail in Thunderstorms Maximum Storm Tops USE of Airborne Radar Extrapolation to Different Climbs Egpws Controls Enhanced Ground-Proximity Warning System EgpwsAppendix B System Operation Annunciators Push Button Controls Egpws Operation Related Egpws System Operation Egpws Display Figure B--1 Egpws Test Index Index TGT target, 3-6 tilt TRB turbulence Radar facts cont rain echo attenuation Index--5 BRT brightness or BRT/LSS lightning sensor system