Figure 5-14.
Installing RADIAC Set in Pouch
(3)
Before each mission, a series of preoperational tests
must be performed to ensure that the RADIAC Set is operating
correctly. The RADIAC Set is self-testing and the preoperational
tests are performed automatically by the equipment. The operator is
required to reposition the alarm switch and observe closely that the
proper displays are shown for the test being conducted.
(a) Segment Test.
Segments of the digital display, decimal points, and unit readout are
displayed for about ten seconds to determine that all display segments
are working. The alarm test during the ten seconds when segments are
displayed.
(b) Alarm Test.
Operate ALM switch through all positions to check that the alarm
sounds and shuts off and that the lights work when the switch is in
the visual mode.
(c) Digit/unit Test.
After the segment test, the unit automatically proceeds through the
sequence of numbers, decimal places, and dose units to test that they
are working in the proper order. This test and the electrical test
take about 60 seconds.
IS0345
5-18
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