ACR Electronics ELT-201 User Manual
PRODUCT
ELT-201™
SUPPORT
MANUAL
Y1-03-0090-1
Rev. D
Product No. 2760
Emergency Locator Transmitter
ACR Electronics, Inc.
5757 Ravenswood Road
Fort Lauderdale, Fl 33312
+1(954) 981-3333 · Fax +1 (954) 983-5087
www.acrelectronics.com
Email: Info@acrelectronics.com
A
Chelton Group
company
1.0 INTRODUCTION
1.1 Scope
This manual provides information for the installation, operation, and maintenance of the
ACR/ELT-201 Emergency Locator Transmitter (ELT), hereafter referred to as the ELT.
The ELT-201 is approved for use as a survival (S) type ELT under FAA Technical
Standard Order (TSO) C-91a and FCC Rules Part 87.
1.2 Purpose
The ELT (S) is intended to be carried aboard aircraft and used to locate survivors in the
event of a ditching; it can be used, however, in over-land emergencies. When activated, it
transmits a distinctive sound on the international distress frequencies of 121.5 and 243
MHz. These signals can be used by Search and Rescue personnel to assist them in
locating survivors.
Unlike other types of ELTs, the ELT (S) is intended to be removed from the aircraft and
to travel with survivors. The ELT-201 may be installed within life rafts or slide rafts or
mounted in the aircraft cabin or flightdeck.
The ELT-201 is activated by placing the unit in water. The unit is completely waterproof
and floats upright when deployed. A tether is provided for securing the unit to a life raft
or person.
The ELT-201 is also designed to be SARSAT compatible. SARSAT is an international
system of low orbiting satellites used to detect alerts from ELTs and EPIRBs and to
determine their location.
2.0 INSTALLATION
Inspect the water soluble tape (A2-05-0081) holding the antenna to the body of the unit to
make sure the antenna is held securely. Replace the water soluble tape if necessary.
NOTE: Before installing or re-installing an ELT, it should be tested using the procedure
described in section 4.1 of this manual.
2.1 Raft Pack Installation
To pack the ELT with a life raft, bend the flexible antenna downward so that it lays flat
against the body of the unit (see Figure 1). The unit is then ready to be packed.
2.2 Mounting Bracket Installation
The ELT-201 may be installed into existing ELT brackets or into an optional ACR
mounting bracket (ACR Part No. A3-06-1698). (To install the ELT into the mounting
bracket, bend the antenna downward so that it lays flat against the body of the unit (see
Figure 2). While holding the antenna in this position and the unit upright, insert the unit
into the mounting bracket clamp (see Figure 2). Secure the ELT to the mounting bracket
by pressing down on the clamp latch.
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Y1-03-0090-1 Rev. D
3.0 OPERATION
3.1 Deployment at sea
To operate the ELT in water:
1) Remove the unit from raft pack or bracket and allow the antenna to extend fully
upright (see Figure 1).
2) Remove the protective tape surrounding the lanyard.
3) Grasp free end of lanyard and partially unravel.
4) Tie free end of lanyard to life raft or person.
5) Release unit into the water.
6) Red light at top of unit will flash, indicating proper operation.
NOTE: To cease operation of the ELT, remove the unit from the water and dry off
the bottom cover with cloth or paper.
3.2 Deployment on land
To operate the ELT on land:
1) Remove the unit from raft pack or bracket and allow the antenna to extend fully
upright (see Figure 1).
2) Remove the protective tape surrounding the lanyard.
3) Grasp free end of lanyard and partially unravel to release plastic bag.
4) Place lower half of unit in plastic bag.
5) Fill plastic bag with water.*
6) Red light at top of unit will flash indicating proper operation.
* NOTE: Any water based liquid may be used to fill the bag, such as coffee or any
beverage, denatured alcohol, urine, etc. Oil based liquids such as hydraulic fluids are
generally not suitable since they do not conduct electricity.
To assure optimum performance of the ELT, the lower third of the unit should be kept
submerged. However, satisfactory operation can usually be achieved with as little as 1/2"
of water in the plastic bag. The flashing red light will indicate whether or not satisfactory
operation has been achieved.
The ELT should be located in a clear area away from trees, boulders, or other large
objects. The ELT may be carried when operating, however the unit should be held high
enough so that the entire length of the flexible antenna is above the carrier’s head and
clear of any other obstructions.
To cease operation of the ELT, remove the unit from the plastic bag and dry off the
bottom cover with cloth or paper.
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Y1-03-0090-1 Rev. D
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