| Parameter | Function | |-----------|----------| | C1 | Backlight brightness (1-5) | | C2 | Auto power-off time (minutes) | | C4 | Walk mode (0=off, 1=on) | | C5 | Cruise control (0=off, 1=on) | | C14 | Current limit (A) – match controller |
To save settings: After changing a parameter, press Power to move to the next. When finished, press and hold Power for 3 seconds to exit. The display will reboot.
Secure the controller to the panel or DIN rail. Leave slack in wires to avoid pulling terminals.
| Terminal | Input Type | Wiring | |----------|------------|--------| | 5 & 6 | Thermocouple (K,J,T,E) | 5 = Positive (+), 6 = Negative (–) | | 5,6,7 | RTD (Pt100) – 3-wire | 5 & 6 = matched leads, 7 = common |
Writing an installation manual for a device like the BendixKing KT 70 Transponder requires a focus on precision, safety, and regulatory compliance.
Here is a structured, useful essay format outlining the key components for a KT 70 installation manual, designed for avionics technicians and installers. Installation Guide: KT 70 Mode S Transponder 1.0 Introduction and Scope
This guide covers the physical installation, electrical wiring, and functional testing of the KT 70 Mode S Transponder. The KT 70 is designed to provide aircraft identification, altitude reporting, and surveillance data to Air Traffic Control (ATC).
Purpose: To provide a standard procedure for installing the KT 70. Target Audience: Certified Avionics Technicians. 2.0 Pre-Installation Considerations Kt 70 Installation Manual
Equipment List: Ensure the kit includes the KT 70 unit, mounting tray, backshell connector kit, and antenna.
Regulatory Compliance: Installation must comply with the Federal Aviation Administration (FAA) requirements (e.g., FAR Part 43). An FAA Form 337 is generally required for return to service.
Antenna Requirements: A Mode S transponder requires a L-Band antenna (e.g., blade or dipole) optimized for 1090 MHz. 3.0 Physical Installation
Mounting Location: Install the unit in a cool, dry area, typically in the avionics stack. Installation Procedure:
Install the mounting tray (P/N 047-05814-0000) using proper hardware. Ensure proper bonding to the airframe for grounding.
Slide the KT 70 unit into the tray until the connector mates. Secure the unit with the front lockdown screw. 4.0 Electrical Wiring and Interfacing
Connector Mapping: Use the 25-pin D-sub connector for power, ground, and interface signals. | Parameter | Function | |-----------|----------| | C1
Power Requirements: The unit operates on 14/28 VDC. Use a 5-amp circuit breaker. Key Connections:
Altitude Encoder (Gray Code): Connect to a compatible blind encoder (e.g., KEA 130A) or directly to an Air Data Computer (ADC).
Antenna Cable: Use RG-58 or RG-142 coaxial cable to minimize signal loss.
Suppression Cable: Connect to other L-Band equipment (e.g., DME, TCAS) to prevent interference. 5.0 Configuration and Ground Testing
Configuration Menu: Access the maintenance menu to set the aircraft address (hex code), flight ID, and altitude encoder type. Ground Test: Apply power and check for error messages. Verify the unit displays the correct altitude.
Use a transponder ramp tester (e.g., IFR4000) to confirm mode S replies and power output. 6.0 Post-Installation (Flight Check)
Verify proper operation in flight, ensuring ATC receives correct Mode S identification and altitude reports. Secure the controller to the panel or DIN rail
This structured approach ensures that the KT 70 is installed according to manufacturer specifications and safety standards.
To give you the most accurate installation guide, I need to know:
Is this for a new installation or a replacement of an old transponder? What aircraft model are you installing this in? Will you be integrating it with a GPS for ADS-B compliance?
If you provide this information, I can offer specific wiring, connector, and configuration tips for your situation.
Physical manuals can be lost. For the most current version:
Warning: Avoid outdated photocopies. A 2019 manual may not cover hardware changes (e.g., new SSR firing mode).
Symptom: Display jumps ±10°C. Solution: Reroute sensor wires away from power cables (inductive coupling). Use shielded cable and ground one end.