MIL-DTL-62740A(AT)
n+1 Counter can be used as microprocessor interrupts and event flags as well. The Ignition
Signal Pulse Shaper (U1, U4, U8) improves the quality of the ignition signal so that it can be
measured using the Divide by n+1 Counter or so that it can selectively drive an interrupt signal.
The Pulse Tachometer Deglitcher (U2, U4, U5) provides a clean, square wave signal of double
the input frequency. The Full Wave Rectifier (U8, U13, U14) is software selectable. The PWA is
military unique because it is designed specifically to be a component of the Simplified Test
Equipment/Internal Combustion Engine - Reprogrammable (STE/ICE-R) Vehicle Test Meter
(VTM) and to withstand environmental conditions which exceed commercial requirements.
6.2 Acquisition requirements. Acquisition documents must specify the following:
a. Title, number, and date of this specification.
b. Issue of DoDISS to be cited in the solicitation, and if required, the specific issue of
individual documents referenced (see 2.2.1 and 2.3).
c. If first article inspection is required (see 3.1).
d. PWA drawing number, revision letter, date and PWA part number (see 3.2 and
3.5.2).
e. If CMOS logic levels should be other than as specified (see 3.3.3).
f. If marking is other than as specified (see 3.5.2).
g. If burn-in is not required (see 3.6.5).
h. If ATE test is required (see table IV footnote).
i. Packaging requirements (see 5.1).
6.3 First article. When first article inspection is required, contracting documents should
provide specific guidance to offerors. This guidance should cover whether the first article is a
first article sample, a first production item, or the number of test items. These documents should
also include specific instructions regarding arrangements for examinations, approval of first article
test results, and disposition of first articles. Pre-solicitation documents should provide
Government waiver rights for samples for first article inspection to bidders offering a previously
acquired or tested product. Bidders offering such products who wish to rely on such production
testing must furnish evidence with the bid that prior Government approval is appropriate for the
pending contract.
6.4 Conformance inspection. Affordable conformance inspection with confidence varies
depending upon a number of procurement risk factors. Some of these factors include: Contractor
past performance, Government schedules and budget, product material and design maturity,
manufacturing capital equipment and processes applied, the controlled uniformity of those
processes, labor skill and training, and the uniformity of measuring processes and techniques.
During the solicitation, contracting documents should indicate those tests desired from table IV
and their designated frequency based on a risk assessment for the procurement.
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