Kas297a Altitude Selector Im 006-00512-0002_2

INSTALLATION MANUAL

KAS 297AALTITUDE SELECTOR/ALERTER

MANUAL NUMBER 006-00512-0002REVISION 2 JUNE, 2002

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COPYRIGHT NOTICE

©1996-1998, 2002 Honeywell International Inc.

Reproduction of this publication or any portion thereof by any means without the express written permission of Honeywell is prohibited. For further information contact the manager, Technical Publications, Honeywell, One Technology Center, 23500 West 105th Street Olathe KS 66061 telephone: (913) 712-0400.

BENDIX/KING KAS 297A

Rev 2, June/2002 00512I02.JA Page RH-1

REVISION HISTORY

KAS 297A Installation Manual

Part Number: 006-00512-XXXX

For each revision, add, delete, or replace pages as indicated.

REVISION: Rev 2, June/2002

REVISION: Rev 1, Nov/1998

ITEM ACTION

All pages Full reprint, replacement manual.

ITEM ACTION

All pages Full reprint, replacement manual.


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THIS PAGE IS RESERVED


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TABLE OF CONTENTS

SECTION IGENERAL INFORMATION

PARAGRAPH PAGE

1.1 INTRODUCTION 1-1

1.2 DESCRIPTION 1-1

1.3 TECHNICAL CHARACTERISTICS 1-1

1.4 UNITS AND ACCESORIES SUPPLIED 1-2

1.4.1 KAS 297A UNITS AVAILABLE 1-2

1.4.2 INSTALLATION KIT 1-2

1.5 TOOLS, EQUIPMENT, AND HARDWARE REQUIRED; BUT NOT SUPPLIED 1-2

1.6 LICENSE REQUIREMENTS 1-2

1.7 INSTRUCTIONS FOR CONTINUED AIRWORTHINESS 1-3

SECTION IIINSTALLATION

PARAGRAPH PAGE

2.1 GENERAL 2-1

2.2 UNPACKING AND INSPECTING EQUIPMENT 2-1

2.3 INSTALLATION 2-1

2.4 POST INSTALLATION CHECK OUT 2-1

2.4.1 KAS 297A, P/N 065-0053-00 THRU -07, ALTITUDE SELECTOR WITH KFC 300 FLIGHT DIRECTOR/AUTOPILOT SYSTEM 2-1

2.4.2 KAS 297A, P/N 065-0053-08/-09, STAND ALONE ALTITUDE ALERTER 2-2

SECTION IIIOPERATION

PARAGRAPH PAGE

3.1 GENERAL 3-1

3.2 OPERATION 3-1

3.2.1 KAS 297A, P/N 065-0053-00 THRU -07 3-1

3.2.2 KAS 297A, P/N 065-0053-08/-09 3-1


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FIGURES

FIGURE PAGE

2-1 KAS 297A CONNECTOR PIN ASSIGNMENTS 2-5

2-2 KAS 297A INSTALLATION DRAWING 2-7

2-3 KAS 297A/KFC 300 FD/AP INTERCONNECT 2-9

2-4 SYSTEM INTERCONNECT 2-11


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SECTION IGENERAL INFORMATION

1.1 INTRODUCTIONThis manual contains information relative to the physical, mechanical and electrical characteristics of the Honeywell KAS 297A Altitude Selector/Alerter.

1.2 DESCRIPTIONThe KAS 297A Altitude Selector (065-0053-00 thru 07) is a one-half 3 inch ATI panel mounted instrument that serves as altitude preselector, an altitude alerter, and an altitude capture guidance unit. The KAS 297A Altitude Alerter (065-0053-08/-09) is similar except that it does not perform as an altitude capture guidance unit. The KAS 297A -08/-09 is designed to be used as a stand alone altitude alerter only.Altitudes from sea level to 49,900 feet may be preselected in increments of 100 feet or 1000 feet. Automatic capture of the selected altitude may be accomplished when the "ALT ARM" pushbutton has been depressed (except on the -08/-09 versions).Altitude alerting is provided with visual and aural warnings per FAR 91.51. The selected altitude and visual warning display is controlled by an automatic light dimming circuit that provides suffi-cient intensity under all cockpit lighting conditions.If the pilot establishes a climb or a descent to a selected altitude, the altitude selector may be cou-pled to the flight director and the autopilot so that automatic altitude capture may be performed (except on the -08/-09 versions).

1.3 TECHNICAL CHARACTERISTICS

SPECIFICATION CHARACTERISTIC

TSO COMPLIANCE: TSO C9c, C52a

DO-160 ENVIRONMENTAL CATEGORIES: C1ASXXXXXXABBBB

PHYSICAL CHARACTERISTICS Size: Weight:

See Figure 2-2See Figure 2-2

Mounting: ARINC 1/2 ATI 3

MATING CONNECTOR: P/N 030-02349-0009

POWER INPUT: 28VDC with 0.35 amps maximum

SIGNAL INPUTS:(External to KFC 300 System)

Servoed altimeter, barometrically cor-rected, DC output (Baro corrected potentiometer ratio: 0.050 @ 0 ft., 0.6333 @ 35 k ft.) Altitude Valid = 0 V

SIGNAL OUTPUTS:

* - except -08, -09 ** -02, -03,-06,-07 only

Altitude Aural Alert (500 Ω) Altitude Aural Alert (Open / Gnd)* Altitude Select Valid (Open / Gnd)* Altitude Arm Switch (0/28v)* Altitude Hold Engage (Open / Gnd)* ∆hc - diff between baro alt & selected alt (4mv/ft)* ∆h Select (Open / Gnd)** HB Alt. Out (0.15 mv/ft)


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1.4 UNITS AND ACCESORIES SUPPLIED

1.4.1 KAS 297A UNITS AVAILABLE

NOTES:1. Units with Baro. Alt. Out are compatible w/KNS 660.2. Unless Mod 2 is installed.

1.4.2 INSTALLATION KIT

The KAS 297A Installation Kit (050-01880-0000) consists of the following parts:

1.5 TOOLS, EQUIPMENT, AND HARDWARE REQUIRED; BUT NOT SUPPLIED

CablingPanel Punch 071-06042-0014Panel Decal 057-02105-0014File Template 071-06039-0014

1.6 LICENSE REQUIREMENTSNone

Part Number Bezel ArmButton

KFC 300 Compatible

Baro Alt Out

Audio Alertat Sel. Alt.

065-0053-00 BLK X X - X (note 2)

065-0053-01 GRY X X - X (note 2)

065-0053-02 BLK X X X (note 1) X (note 2)

065-0053-03 GRY X X X (note 1) X (note 2)

065-0053-04 BLK X X - -

065-0053-05 GRY X X - -

065-0053-06 BLK X X X (note 1) -

065-0053-07 GRY X X X (note 1) -

065-0053-08 BLK - - - -

065-0053-09 GRY - - - -

Part Number Description Qty

030-02349-0009 CONN 37P 1

030-02351-0003 HOOD & LEVER ASSY 1

071-04029-0000 MARION CLAMP 1

089-05115-0012 SCR FHP 6-32 4

089-06461-0012 SCR FHP 6-32 GRY 4


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1.7 INSTRUCTIONS FOR CONTINUED AIRWORTHINESSThe instructions for continued airworthiness given in the TC or STC approvals for this product sup-plements or supersedes the instructions for continued airworthiness in this manual.Most Honeywell products are designed and manufactured to allow "on condition maintenance." On condition maintenance is described as follows; There are no periodic service requirements necessary to maintain continued airworthiness. No maintenance is required until the equipment does not properly perform it’s intended function. When service is required, a complete perfor-mance test should be accomplished following any repair action. Consult the appropriate unit Maintenance/Overhaul Manual for complete performance test information.


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SECTION IIINSTALLATION

2.1 GENERALThis section contains information dealing with the installation, wiring and post installation check out of the KAS 297A Altitude Selector.

NOTE:The conditions and tests required for TSO approvalof this article are minimum performance standards.It is the responsibility of those desiring to install thisarticle either on or within a specific type or class ofaircraft to determine that the aircraft installation con-ditions are within TSO standards. The article may beinstalled only if further evaluation by the applicantdocuments an acceptable installation and is ap-proved by the Administrator.

2.2 UNPACKING AND INSPECTING EQUIPMENTExercise extreme care when unpacking the equipment. Make a visual inspection of the unit for evidence of damage incurred during shipment. If a claim for damage is to be made, save the ship-ping container to substantiate the claim. The claim should be promptly filed with the transportation company. It would be advisable to retain the container and packaging material after all equipment has been removed in the event that equipment storage or reshipment should become necessary.

2.3 INSTALLATIONThe KAS 297A is normally mounted in the pilot’s instrument panel near the altimeter. The mount-ing location should be within easy reach of the pilot and clearly visible to him. Figure 2-2 provides the KAS 297A outline and mounting dimensions. Figure 2-1 provides the pin function assignments of the KAS 297A connector. Figures 2-3 and 2-4 provide interconnect information

2.4 POST INSTALLATION

2.4.1 KAS 297A, P/N 065-0053-00 THRU -07, ALTITUDE SELECTOR WITH KFC 300 FLIGHT DIRECTOR/AUTOPILOT SYSTEM

Select the test station elevation on the KAS 297A. Using the baro adjust, set the servoed altimeter to 1500 feet greater than the selected altitude. Press the ALT ARM switch on the KAS 297A and the IAS HOLD switch on the KMC 340 Mode Controller. Verify that the ALT ARM and IAS HOLD annunciators on the annunciator panel illuminate. Using the baro set control on the servoed al-timeter, slowly and steadily decrease the altitude towards the selected altitude. When the altitude is 1000 +/− 75 feet above the selected altitude, the ALERT annunciator will come on (plus the aural alert will sound for 2 seconds except for -0000 and -0001 units without Mod 1) and remain on until the altitude is reduced to 300 ( 50 feet above the selected altitude. At that point, the ALERT an-nunciator will extinguish and remain off. Continue to decrease the altitude setting slowly and steadily until the IAS HOLD annunciator on the annunciator panel extinguishes. This indicates se-lected altitude capture. Leave the altitude at the present setting for 1 minute (the altitude on the servoed altimeter must be above the selected altitude on the KAS 297A). The flight director com-mand bars will indicate a fly down command to get to the desired altitude. Slowly decrease the altitude to pass through the selected altitude. At the selected altitude, +/− 50 feet, the ALT ARM annunciator will extinguish. The ALT HOLD annunciator on the annunciator panel will illuminate and the ALERT annunciator will come on for 2 seconds. NOTE: An aural alert will also sound for 2 seconds only on KAS 297A -00 thru -03 without Mod 2.


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Repeat this procedure using an increasing altitude. All the warning bands and tolerances are the same as above. If the KAS 297A does not perform within the outlined tolerances, an altimeter to KAS 297A align-ment is required.

1. Connect a static-pressure system tester to the airplane. An altimeter range of 0 to 30,000 feet will be required. The KAS 297A will not need to be removed from the panel.

2. With no modes engaged, select an altitude of 1,300 feet on the KAS 297A. Reduce the altimeter altitude to 100 feet and engage the ALT ARM mode. Increase the al-titude toward the selected altitude and note when the ALERT annunciator comes on and off. The ALERT annunciator in the KAS 297A should be illuminated from 300 feet to 1000 feet. Observe the point where the ALERT light goes out and ad-just R401, Lo Calibration Adjust pot (left-most access hole to left of display on KAS 297A front panel) to extinguish the ALERT annunciator at 1000 feet. (There will be a slight hysteresis in the system). Continue increasing the altitude and at 1,300 +/− 50 feet, the ALT HOLD mode will engage. Repeat the LO CAL procedure as necessary to bring the ALT HOLD mode engagement within tolerance.

Disengage all modes, and using the static pressure system tester, increase the altitude to 29,000 feet. Select an altitude of 30,300 feet on the KAS 297A. Engage the ALT ARM mode and increase the altitude to 30,000 feet and again observe the point where the ALERT light illuminates and goes off. Adjust R402, Hi Calibration Adjust pot (right-most access hole to left of display on KAS 297A front panel), until the ALERT annunciator extinguishes at 30,000 feet. Continue increasing the al-titude, and at 30,300 +/− 50 feet, the ALT HOLD mode will engage. Repeat the Hi Calibration pro-cedure as necessary to bring the ALT HOLD mode engagement within tolerance.

2.4.2 KAS 297A, P/N 065-0053-08/-09, STAND ALONE ALTITUDE ALERTER

Select the test station elevation on the KAS 297A. Using the baro adjust, set the servoed altimeter to 1500 feet greater than the selected altitude. Using the baro set control on the servoed altimeter, slowly and steadily decrease the altitude towards the selected altitude. When the altitude is 1000 +/− 75 feet above the selected altitude, the ALERT annunciator will come on (plus the aural alert will sound for 2 seconds) and remain on until the altitude is reduced to 300 +/− 50 feet above the selected altitude. At that point, the ALERT annunciator will extinguish and remain off. Continue to decrease the altitude setting slowly and steadily. At the selected altitude, +/− 50 feet, the ALERT annunciator will come on for 2 seconds.If the KAS 297A does not perform within the outlined tolerances, an altimeter to KAS 297A align-ment is required.

1. Connect a static-pressure system tester to the airplane. An altimeter range of 0 to 30,000 feet will be required. The KAS 297A will not need to be removed from the panel.

2. Select an altitude of 1,300 feet on the KAS 297A. Reduce the altimeter altitude to 100 feet. Increase the altitude toward the selected altitude and note when the ALERT annunciator comes on and off. The ALERT annunciator in the KAS 297A should be illuminated from 300 feet to 1000 feet. Observe the point where the ALERT light goes out and adjust R401, LO Calibration Adjust pot (left-most access hole to left of display on KAS 297A front panel) to extinguish the ALERT annunci-ator at 1000 feet. (There will be a slight hysteresis in the system.) Continue in-creasing the altitude and at 1,300 +/− 50 feet, the ALERT annunciator will come on for 2 seconds. Repeat the LO CAL procedure as necessary to bring the ALERT annunciation at the selected altitude within tolerance.


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Using the static pressure system tester, increase the altitude to 29,000 feet. Select an altitude of 30,300 feet on the KAS 297A. Increase the altitude to 30,000 feet and again observe the point where the ALERT light illuminates and goes off. Adjust R402, Hi Calibration Adjust pot (right-most access hole to left of display on KAS 297A front panel), until the ALERT annunciator extinguishes at 30,000 feet. Continue increasing the altitude, and at 30,300 +/− 50 feet, the ALERT annunciator will come on for 2 seconds. Repeat the Hi Calibration procedure as necessary to bring the ALERT annunciation at the selected altitude within tolerance.


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* - Not Applicable to KAS 297A -08, -09.** - Applicable to KAS 297A -02, -03, -06, -07 only.

FIGURE 2-1 KAS 297A CONNECTOR PIN ASSIGNMENTS


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FIGURE 2-2 KAS 297A INSTALLATION DRAWING(DWG. NO. 155-05364-0000 REV AA)


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FIGURE 2-3 KAS 297A /KFC 300 FD/AP INTERCONNECT(DWG. NO. 155-01382-0000 REV AA)


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FIGURE 2-4 SYSTEM INTERCONNECT(DWG. NO. 155-01724-01 REV -)


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SECTION IIIOPERATION

3.1 GENERALThis section discusses the operation of the KAS 297A Altitude Selector.

3.2 OPERATION

3.2.1 KAS 297A, P/N 065-0053-00 THRU -07

Altitude selection on the KAS 297A may be made by turning one of the two concentric knobs lo-cated on the right hand side of the front panel. The inner knob controls the hundreds digit with car-ry and borrow into the thousands digit. The outer knob controls the thousands digit with carry and borrow into the ten thousands digit. Clockwise rotation will increment the digits, while counter-clockwise rotation will decrement them.After altitude selection has been made, capture may be accomplished by pushing the ARM button located on the left side of the panel. This will light the ARM annunciator on the display. Upon in-tercept of the selected altitude, the ARM light will extinguish and the ALERT annunciator will come on for 2 seconds. An aural alert will also sound for 2 seconds on KAS 297A -00 thru -03 without Mod 2.In addition to capturing a selected altitude, the KAS 297A also functions as an altitude alerter. At all times the selected altitude has a guard band located both below and above it so that alerting will be provided whenever the aircraft is within either band. The inner band edges are +/− 300 feet away from the selected altitude and the outer band edges are +/− 1000 feet away. Operation in normal flight is as follows for an approach from below or above.Upon entering the alert band from outside the 1000 foot range, the ALERT annunciator will turn on continuously for the entire time the aircraft is within the alert band. In addition, upon entering the 1000 foot band, the aural alert will sound for 2 seconds (except for -00 and -01 units without Mod 1). No aural tone will sound and the ALERT annunciator will extinguish when the aircraft leaves the alert band either towards or away from the selected altitude. This condition is typical of a normal approach to a selected altitude from above or below and is representative of FAR 91.51 (b) option (ii).Once the aircraft is within 300 feet of the selected altitude, the ALERT annunciator extinguishes. If the aircraft now moves into either alert band, the KAS 297A will annunciate by sounding an aural tone for 2 seconds upon initial entry and by flashing the ALERT annunciator for the entire time the aircraft is within the alert band. Intercepting the selected altitude is not required to enable this logic. This condition is typical of an undesired deviation from selected altitude.Upon intercept of the selected altitude, the ALT ARM annunciator will extinguish and the ALERT annunciator will come on for 2 seconds. In addition, an aural alert will also sound for 2 seconds on KAS 297A -00 thru -03 without Mod2.

3.2.2 KAS 297A, P/N 065-0053-08/-09

Altitude selection on the KAS 297A may be made by turning one of the two concentric knobs lo-cated on the right hand side of the front panel. The inner knob controls the hundreds digit with car-ry and borrow into the thousands digit. The outer knob controls the thousands digit with carry and borrow into the ten thousands digit. Clockwise rotation will increment the digits, while counter-clockwise rotation will decrement them.The KAS 297A, P/N 065-0053-08/-09 functions as an altitude alerter only. At all times the selected altitude has a guard band located both below and above so that alerting will be provided whenever the aircraft is within either band. The inner band edges are +/− 300 feet away from the selected altitude and the outer band edges are +/− 1000 feet away. Operation in normal flight is as follows for an approach from below or above.


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Upon entering the alert band from outside the 1000 foot range, the ALERT annunciator will turn on continuously for the entire time the aircraft is within the alert band. In addition, upon entering the 1000 foot band, the aural alert will sound for 2 seconds (except for -00 and -01 units without Mod 1). No aural tone will sound and the ALERT annunciator will extinguish when the aircraft leaves the alert band either towards or away from the selected altitude. This condition is typical of a normal approach to a selected altitude from above or below and is representative of FAR 91.51 (b) option (ii).Once the aircraft is within 300 feet of the selected altitude, the ALERT annunciator extinguishes. If the aircraft now moves into either alert band, the KAS 297A will annunciate by sounding an aural tone for 2 seconds upon initial entry and by flashing the ALERT annunciator for the entire time the aircraft is within the alert band. Intercepting the selected altitude is not required to enable this logic. This condition is typical of an undesired deviation from selected altitude.Upon intercept of the selected altitude, the ALT ARM annunciator will extinguish and the ALERT annunciator will come on for 2 seconds.

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Kas297a Altitude Selector Im 006-00512-0002_2