ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
C406-1 (453-5002), C406-1HM (453-5003)
Page 32 of 67
Feb 28/2019
25-62-10
Figure 10 Current Draw Test Setup
5)
Read the current draw on the ammeter. Measured current should be 0 µA (micro-amps), and must not be
more than 6 µA.
6)
Verify the ammeter is set to accommodate a range of at least 3.5 amps.
7)
Activate the ELT by placing the control switch in the “ON” position.
8)
Allow the ELT to stabilize for at least 30 seconds to avoid false readings.
9)
Read the current draw on the ammeter. Steady state current draw must not exceed 200 mA.
10)
Deactivate the ELT by placing the control switch in the “OFF” position.
11)
Remove the test harness.
12)
Reinstall the battery in accordance with SUBTASK 25-62-10-450-001 on page 56.
SUBTASK 25-62-10-750-010
O.
Digital Message Verification
–
Item 5g
1)
Set the 453-1000 ELT Test Set (ETS) beacon reader to receive and decode the ELT digital message. Refer
to the ETS operating manual (570-1000) for ETS operating instructions and additional details.
NOTE: A beacon reader equivalent to the Artex ETS may be used, provided it is capable of
receiving and decoding the 406 MHz digital message.
2)
Activate the ELT by placing the control switch in the “ON” position.
3)
Allow the ELT to transmit for approximately 5 seconds.
4)
Deactivate the ELT and read the test me
ssage broadcast at “turn
-
off”. Message examples are shown in
Figure 11 Short and Long 406 MHz Message Examples.
a)
The test message broadcast by the ELT at “turn
-
off” contains all the information in an actual distress
message, except there is a special digital prefix that informs COSPAS-SARSAT satellites to ignore the
message.
