User guide
Table Of Contents
- Record of Revisions
- Service Bulletin List
- List of Effective Pages
- Table of Contents
- List of Figures
- Introduction
- Description and Operation
- Test and Fault Isolation
- 1. Inspection and Test Regulatory Requirements
- 2. Inspection and Test Procedures
- A. Checklist
- B. Preparation
- C. Coax Cable and Wiring Connections Inspection – Item 1
- D. Mounting Tray and Hardware Inspection – Item 2
- E. Battery Pack Inspection – Item 3
- F. G-Switch Functional Check – Item 4
- G. Performance Testing Setup
- H. 121.5 MHz Frequency Measurement – Item 5a
- I. Audio Modulation Check – Item 5b
- J. 121.5 MHz Power Output Measurement – Item 5c
- K. 406 MHz Frequency Measurement – Item 5d
- L. 406 MHz Power Output Measurement – Item 5e
- M. Current Draw Test – Item 5f
- N. Digital Message Verification – Item 5g
- O. ELT Reset Check – Item 5h
- P. Installed Transmitter Test – Item 6
- Q. Antenna Test – Item 7
- R. Inspection and Test Documentation – Item 8
- 3. Fault Isolation
- Removal
- Installation
- 1. Regulatory Requirements and Guidelines
- 2. Mounting Tray
- 3. Antenna
- 4. Remote Switch
- 5. Buzzer
- 6. Wiring
- A. General Considerations and Recommendations
- B. Remote Switch Harness Fabrication
- C. ELT D-Sub Plug Installation
- D. Cockpit Remote Switch 9-Pin Plug Installation
- E. Wiring Installation
- F. Antenna Connection
- G. Cockpit Remote Switch Power Connection
- H. Remote Switch Alternate Power Source
- I. Airframe Ground Connections
- J. Buzzer Connections
- K. Remote Switch Final Installation
- 7. ELT Installation
- 8. Battery Pack Installation
- 9. Helicopter Installations - Special Considerations
- Appendix A – ELT Registration
- Illustrated Parts List
25-62-30
Page 13 of 84
Jun 25/13
ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ME406 (453-6603), ME406HM (453-6604)
(4) ME406 Series ELT installation and maintenance in all other countries must comply with the
requirements herein and applicable national airworthiness requirements.
(5) The accessories (i.e., remote switch and antennas) addressed in this manual are the
accessories most commonly associated with the ME406 Series ELT. Other options, such as a
different remote switch configuration or a navigation interface, should be installed and
maintained in accordance with the written instructions specific to the accessory.
NOTE
: Contact ACR Electronics, Inc., for optional accessories approved for use with a
ME406 Series ELT.
(6) To ensure proper operation, only parts listed in the Illustrated Parts List of this manual or
those recommended by ACR Electronics, Inc., may be used as replacement parts for the
ME406 Series ELT.
TASK 25-62-30-990-802
2. Model Descriptions
SUBTASK 25-62-30-990-001
A. ME406
(1) The ME406 is a type AF (Automatic Fixed) beacon, which transmits on 121.5 and 406 MHz.
(2) The ME406 ELT is enclosed in an impact resistant plastic casing and mounts on a tray made of
similar material.
(3) When ordered as a system, an installation kit, cockpit remote switch, coax cables, audible
buzzer, and fixed antenna are provided.
SUBTASK 25-62-30-990-002
B. ME406HM
(1) The ME406HM ELT is designed for helicopter installations and features a 5-axis G-Switch
module in addition to the primary G-switch, which is oriented to line-of-flight. This design
allows the ELT to be activated in all six axes. See Figure 1 ELT Orthogonal Axes.
(2) The ME406HM is identical to the ME406 in all other aspects.
Figure 1 ELT Orthogonal Axes
+Z
-Z
+X
-X
-Y
+Y