User manual ACR ELECTRONICS ELT-201 EMERGENCY LOCATOR TRANSMITTER

[. . . ] (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. 2. 2 1 Y1-03-0090-1 Rev. D 3. 0 3. 1 OPERATION 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). [. . . ] An ELT should always be tested prior to installation or re-installation. Periodic testing will help to assure that the ELT will function optimally and reliably in the event of an emergency. 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. 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. 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. 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. Ensure that it is squarely in contact with the body of the unit over its entire circumference. If any physical damage is observed, have the unit inspected at an ACR authorized service center. [. . . ] 11) With the unit standing upright, press firmly on the top cap until its lower lip is firmly in contact with the top of the case assembly. Ensure that the lower lip of the top cap is in contact with the case assembly around its entire circumference. 12) Insert the three set screws into the holes at the top of the battery module. Tighten set screws with hex key wrench, and cover screws with the new reflective tape. [. . . ]