User manual ACR ELECTRONICS ELT-201 EMERGENCY LOCATOR TRANSMITTER

[. . . ] 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. 1. 2 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. [. . . ] To properly test the ELT, a receiver capable of tuning to the international distress frequencies (121. 5 and 243 MHz) is required. The ELT does possess a self test feature which monitors the signal at the antenna terminal. The red indicator light will flash only if the proper signal is detected. However, no self test can be 100% complete. The only way to completely guarantee that the unit is fully functional is to monitor the ELT signal on an independent piece of equipment. If the test receiver has an antenna that is not detachable, the test receiver should be located just outside of the RF shielded room. If open air testing is attempted, the receiver should be located at least 100 meters away from the ELT under test. If the receiver has a detachable antenna, an alternative method is to disconnect the receiver's antenna and locate the receiver in close proximity (less than 1 meter) to the ELT under test. To test the ELT: 1) Set up the receiver as described in the paragraph above. 2) Pour approximately 1/2" of water into a dish or pan and place the ELT upright into the water so that the bottom of the unit is immersed. 3) Check to see that red indicator light is flashing approximately once per second. 4) Listen for distress signal coming from receiver. 5) Tune receiver to 243 MHz and again listen for distress signal. 6) The ELT is fully functional if and only if distress signals are heard at both 121. 5 and 243 MHz and the red indicator light flashes without interruption. If the conditions specified in step 6 are not met, send or bring the unit to an authorized ACR service center for further testing and repair. 4. 2 Visual Inspection In addition to functional testing, the ELT should also be periodically inspected for physical damage. Physical damage may compromise the reliability of the unit even if it appears to be fully functional. When inspecting the unit for damage, pay particular attention to the following: 3 Y1-03-0090-1 Rev. D 1) Check the flexible antenna for creases, cracks or holes in the vinyl, and any other damage. 2) Bend the antenna downward so that it lays flat against the body of the ELT. The antenna should return to its normal upright position with no assistance. 3) Check the top cap for cracks, dents, or other damage. Ensure that the lower rim of the top cap rests squarely on the body of the unit over its entire circumference 4) Check the body of the unit for cracks or other damage. [. . . ] Tighten set screws with hex key wrench, and cover screws with the new reflective tape. Caution: Do not use excessive force when tightening set screws. 13) Test the unit in accordance with the procedure of Section 4. 1 of this manual. 14) Redate replacement date to five (5) years hence. [. . . ]