Jotron Electronics A/S TRON40GPS User Manual

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5. MAINTENANCE OF JOTRON EPIRBS
Every Month:
Perform EPIRB self-test. (See chapter 3.3.). What the self test actually does is to
send out a short test signal on 121,5 and 406,025 Mhz, testing the output of the
transmitter.While transmitting the test signal, the battery voltage, output power and
phase lock is tested. During the test of the 406Mhz transmitter a test message is
transmitted, this test message is coded with a special synchronisation code and will
not be recognized as real alert by the COSPAS/SARSAT satellites.
Carry out visual inspection for defects on both the EPIRB and Bracket.The EPIRB
should be easily removed and replaced in the Bracket. Make sure that the EPIRB
and Bracket is not painted or otherwise covered with chemicals, oil, etc. Check the
expiry date of the EPIRB Battery and the Hydrostatic Release Mechanism. Check
the presence of a firmly attached lanyard in good condition and that it is neatly
stowed and is not tied to the vessel or the mounting bracket.
Every 12
th
Month:
Perform extended annual test according to IMO’s MSC/Circ.1040 (Annual testing of
406 MHz satellite EPIRBs) as required by SOLAS IV/15.9.This test can be carried
out by one of Jotron’s authorised representatives or any other service provider in
possession of a Tron UNIDEC,Tron DEC or any other Cospas-Sarsat EPIRB
tester/decoder.The test ensures that the EPIRB is within its specifications and
complies with IMO and the COSPAS/SARSAT system. Documented proof of test or
Test Certificate containing test results and EPIRB data issued by service provider
must be kept on board for future inspections the next 12 months.
Every 2
nd
Year:
Hydrostatic Release Mechanism including Plastic Bolt on the Float Free Brackets
must be replaced. (Check expiry date on label).
Every 4
th
Year:
The EPIRB Battery must be replaced every 4th year, unless otherwise instructed by
the vessel flag state or local authorities.(Check expiry date on label).
NOR/NIS flag vessels are required to go through periodical maintenance every 
24 months by replacing the complete EPIRB.
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