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|  MIL-P-70995(AR)
Control Panel #1
Group
1B
and
2A
Control Panel #2
Group
1A
and
2B
4.5.6 Reliability. Control panels selected for the reliability
test shall comply with the functioning requirement before and after
the reliability test. The control panels shall be tested for
reliability requirements under test conditions specified in 4.5.1.
4.5.6.1
Procedure.
a.
Apply
excitation
supply
voltages
and
loads
b.
Depress
safe
and
armed
press
to
test
lamps
Move the off-safe-armed switch to "safe" then to "armed".
c.
Activate and deactivate the firing relay 24 times with the
d.
gun selector In "all", 6 times in "right", and 6 times with
gun selector in "left". Activation and deactivation dura-
tion shall be 10 seconds each.
W
Move the off-safe-armed switch to "off .
e.
n
Repeat "a" through "e 60 times.
f.
4.5.6.2 Disposal. Reliabilty tested control panel shall be
disposed of as specified in the contract (see 6.2).
4.5.7 Vibration. Control Panels shall be tested for vibration
requirement in accordance with MIL-STD-810, Methods 514.4, procedure
I, with test conditions In accordance with section I-3.4.3 and test
set Up in accordance with section 11-1.2.1.4. Control panels shall be
tested at levels defined by figure 514.4-9 and Table 514.4-IV of MIL-
STD-810. The frequency of applied vibration shall be cycled
logarithmically from 5 to 500 to 5 cycles per second for 5 cycles,
each having a duration of 36 minutes, totaling 3 hrs. testing time for
each axis.
After vibration has been completed, the control panel
shall be tested for and shall comply with the functioning requirement
using the test method specified in 4.5.4. and shall be visually ex-
amined to determine that the requirements have been met. Vibration
tested control panels shall be disposed of as specified in the con-
tract.
4.5.8 Packaginq
tests.
4.5.8.1 Determination of cleanliness. The applicable surfaces of
each sample unit shall be subjected to the determination of cleanli-
ness test specified in MIL-P-116.
4.5.8.2 Heat seal seam. The same level A unit packages shall be
subjected to the heat seal seam test specified in MIL-P--116.
4.5.8.3 Vacuum retention. A sufficient vacuum shall be drawn to
cause the flexible barrier of unit packages to cling snugly to the
enclosed item. Care shall be exercised to insure that an excessive
amount of vacuum is not applied which might cause puncture or rupture
of the barrier. Without releasing the vacuum, the final opening in
the barrier shall be sealed. After remaining undisturbed at room tern
perature for two hours, the barrier shall be. examined to determine
16
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