ARTEX PRODUCTS / ACR ELECTRONICS, INC.
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ARTEX ELT 4000S
Y1-03-0364 Rev E
Company Confidential
25-62-38
Page
27
of
54
NOTE:
If after three attempts of shorting the water contacts and the ELT does not
activate, then the ELT must be sent to an ARTEX authorized service center for
evaluation.
CAUTION
:
IF ACTIVATED, THE ELT WILL SEND A LIVE BURST SIGNAL TO SEARCH
AND RESCUE SATELLITES IF LEFT ACTIVE FOR 50 SECONDS OR MORE.
G.
Performance Test Setup
1)
Maximum Battery Test Time
a)
The ELT 4000S firmware continually keeps track of the beacon run time. The
beacon controller microprocessor writes the operating time information to a
memory Integrated Circuit (IC) in the battery pack, keeping the information up to
date. Per FAA TSO requirements, an ELT battery must be replaced if the operation
time is greater than one hour.
b)
If the operation time exceeds one hour, an error indicator will be displayed when a
self-test is performed (see self-test section of this document). This does not affect
the normal operation of the ELT 4000S, but provides an indication to the user that
the battery must be replaced, in order to comply with the FAA TSO requirements.
To minimize battery run time, carefully plan all testing and operation verifications
to avoid unnecessary operation of the ELT.
c)
In order to minimize battery usage, it is recommended that any annually required
testing coincide with scheduled self-testing of the ELT.
2)
Place the ELT in an RF enclosure or screen room to prevent RF emissions.
3)
Remove the ELT from the metal bracket.
4)
Fully deploy the antenna.
5)
For final airworthiness verification, the ELT’s own battery pack should be used as the
power source for these measurements. An alternate power source should be used
where lengthy servicing, other than the performance tests, is anticipated. Expired
battery packs can be used if the airworthiness performance of the battery pack in the
system is not required. The battery packs are capable of at least fifty (50) hours of
operation at the end of five years of battery life.
6)
ELT 4000S will be tested using one of the following options.
a)
Beacon Tester BT200
1.
Turn on the Beacon Tester and Select the Beacon Tester application. The
BT200 will initialize. Once the application opens, set the following
parameters.
•
Input Mode
–
internal antenna
•
Receive Channels
–
121 MHz or 406 MHz (depending on the
desired frequency)
•
Receive Mode
–
Single Burst Mode
2.
For consistency, in radiated data measurements, place the Receiving Antenna
(Beacon Tester) 1-meter away from the UUT. Also, keep the orientation of
the Beacon Tester parallel to the antenna of the UUT.
