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| MIL-E-50738(MU)
8 August 1973
4.6.3 Batterv power switching test. Apply the load item 1.2 of
of table I) to P1-1; and PI -18, apply the power source of table I item 2.11
to P1-22 and P1-21, and the digital type D signal (item 3.1 Of table I) to
P1-9. Measure the output at P1-18 to determine compliance with 3.3.1.2.
4.6.4 Battery power, Q-switch voltage test. Connect the load
item 1.1 of table I) to PI-16. Apply the power source of table I item 2.1
to P1-22 and P1-21. Measure the output at P1-16 to determine compliance
with 3.3.1.3.
4.6.5 Battery power voltage sense test. Apply the power source
of table I item 2.1) to P1-22, P1-21, and P1-11. Measure the outputs at
P1-10, P1-8 and P1-15 to determine compliance with 3.3.1.4. Apply the
power source to P1-14. Measure the output at P1-15 to determine compliance
with 3.3.1.4.
4.6.6 Tank power, primary power, and Q-switch voltage test-
Connect the loads (iterns 1.1 and 1.2 to P1-17, P1-18 and P1-16. Apply
the power source of table I (item 2.1) to P1-24 and P1-25. Meaasure the
output at P1-17, P1-18, and P1-16 to determine compliance with 3.3.1.5.
4.6.7 Enviromnental tests
4.6.7.1 Temperature. The test apparatus shall be in accordance
with the applicable test facilities provisions of MIL-F-13926 except that the
assembly may be mounted on the inside surface of the test chamber. Per-
form this test in accordance with Procedure I of MIL-F-13926, with condi-
tions C (-40F) and E (+125F), and with the rate of temperature change
during cycling not greater than 8F per minute. At each of the specified
operating temperatures, perform the tests of 4.6.2 through 4.6.6 to deter-
mine compliance with 3.3.2.1 and 3.3.2.2.
4.6.7.2 Vibration. Perform this test utilizing the apparatus speci -
fied in Method 5.1.4.1 of MIL-STD-810 and in accordance with Part 1 of
Procedure I therein, except that the vibratory conditions of 3.3.2.3 shall
apply. Following vibration exposue, examine the assembly for structure
failure, loose hardware, wire breakage, and abrason. Perform the tests
of 4. 6.2 through 4.6.6 to determine compliance with 3.3.2.3.
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