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Page Title:
Test and inspection equipment and facilities |
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|  MIL-C-22912B(OS)
4.5.1.2 Altitude. Normal ground.
4.5.1,3 Vibration. None.
4.5.1.4 Humidity.
Room ambient to 95 percent relative maximum.
4.5.2 Test and inspection equipment and facilities. The manufacturer
shall furnish and maintain all necessary test equipment and facilities
and shall provide personnel for performing all quality conformance tests.
The test equipment shall be adequate in quantity and, unless definite re-
quirements are specified, shall be of sufficient accuracy and quality to
permit performance of the required quality conformance tests.
4.5.3 Test equipment. The following Items of test equipment are re-
quired to perform the quality conformance tests set forth in this speci-
fication.
4.5.3.1 A megohmmeter rated at 500 volts dc, with a midscale reading
of not less than 10 megohms.
4.5.3.2 A 115 volt, 400 Hz, single-phase, ac power supply.
4.5.3.3 Synchro control transmitter, Type 15CXa.
4.5.3.4 Power supply, dc, minus 24 volt, 200 ma minimum.
4.5.3.5 An interrupter that will be off for l/12 of a second and on
for 1/12 of a second. The combined transfer time and tolerance for each
"on" period and each "off" period shall be no greater than four milli-
seconds.
4.5.3.6 A vacuum tube voltmeter capable of reading at least 100 volts
on the highest scale, with the lowest scale capable of reading 3 milli-
volts maximum.
4.5.3.7 A phase meter capable of determining the electrical phase
difference between two 400 Hz signals.
4.5.3.8 A single-pole, double-throw, center-off, toggle switch rated
at not less than 3 amperes.
4.5.4 Test procedure
4.5.4.1 Insulation resistance. Using the meghmmeter, measure the in-
sulation resistance between every terminal of P902, Drawing 2239924, and
the mounting bracket or chassis. The reading shall conform to 3.3.1.
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