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MIL-T-81809(AS)
Acceptance
Requirement
Specification
Characteristic
Requiremcnt
(if lower)
Lens Focus
3.4.2
Target Position
3.4.3
Self-Test
3.4.4
Circuit
10 cycles
Motor Speed
3.4.5
per-minute
3.4.6
Luminance
output
4.4.5.4 Failure Criteria - In addition to the requirements of MIL-R-22973 a
failure shall have occurred whenever the performance characteristics of the test set
fall outside of the requirements in Section 3.  If subsequent. analysis reveals that.
several parts have deteriorated, each shall be counted a failure, unless one caused
the other parts to fail.
4.4.6 Reliability Assurance Tests - (M101) Reliability Assurance tests shall
be conducted required by MIL-STD-781 with the exceptions stated herein. Equip-
ments selected for reliability assurance tests shall first have passed the remainder
of the quality conformance tests.
4.4.6.1 Test Level - Test Level A from table 1 of MIL-STD-781 shall be used.
4.4.6.1.1 Duty Cycle - The equipment sha11 be operated continuously on a 24-
hour operating cycle as follows:
Switch
Operating Time
Test Set
Positions
(Hours)
Operation
S1
S2
S3
54
ON
OFF
2
16
BATTERY RECHARGE
OFF-RECHARGE
Not Applicable
LIGHT-MOTION
4
BATTERY MODE
ON
ON
3
OFF-RECHARGE
4
A-C MODE (See Note)
NOTE :  The 4-hour time shall include the time required to
measure the performance characteristics specified in 4.4.6.3.
4.4.6.2 Test Plan - Test Plan III of MIL-STD-781 shall be used to determine
the accept-reject criteria under the Reliability Qualification Phase.  For Sampling
phase, test plan V shall be used to determine the accept-reject criteria.
4.4.6.3 Performance Characteristics to be Measured - During the test the
following performance characteristics shall be measured at the end of every a-c mode
of operation cycle specified in 4.4.6.1.1.
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