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|  MIL-E-50739(MU)
8 August 1973
4.6.6 Charge enable signal. Connect the load (item 1.2) as speci-
fied in table I. Disconect P1-10 from P1-7. Apply the power source
(item 2.1) to P1-24 and adjust to +24.O 2.O Vdc. Measure the load current
to determine compliance with 3.3.1.5.
4.6.7 Environmental tests.
4.6.7 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.
Perform this test in accordance with Procedure I of MIL-F-13926, with
conditions 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
specified in Method 514.1 of MIL-STD-81O and in accordance with Part I
of Procedure I therein, except that the vibratory conditions of 3.3.2.3 shall
apply. Following vibration exposure, examine the assembly for structural
failures, loose hardware, wire breakage, and abrasion. Perform the tests
of 4.6.2 through 4.6.6 to determine compliance with 3.3.2.3.
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