CHAPTER 16
AIRCRAFT WEAPONS SYSTEMS TEST
EQUIPMENT
Aviation ordnancemen use test equipment in all
phases of electrical testing of weapons systems. The
testing procedures you use are required at specific
maintenance levels, such as depot, intermediate, or
organizational. Test equipment varies in complexity,
from a small pocket tester to a very large and complex
unit. No matter the size or complexity, the purpose of
the test equipment is to make sure that the weapon and
the launching platform (aircraft) function correctly.
TEST EQUIPMENT
LEARNING OBJECTIVE: Identify the test
equipment used with aircraft weapons systems.
Recognize the purpose and use of each.
All the test equipment you will use isn't described
in this chapter. Also, the step-by-step procedures
required to operate the test equipment aren't listed. To
do your job, you need to be able to identify the
equipment, know what it is used for, and how it is used.
The specific step-by-step procedures that you should
follow when you use test equipment can be found in
applicable publications.
MULTIMETERS
The AN/PSM-4 and 77/AN multimeters (figs. 16-1
and 16-2) are used to measure resistance (ohms) and
voltage (ac or dc) in an electrical circuit. You use them
to test aircraft circuits when no special test equipment is
available, or when reasonably accurate measurements
are required.
16-1
Figure 16-1.—AN/PSM-4 multimeter.
Figure 16-2.—77/AN multimeter.
