CHAPTER 16 AIRCRAFT WEAPONS SYSTEMS TEST EQUIPMENT

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. Figure 16-1.—AN/PSM-4 multimeter. Figure 16-2.—77/AN multimeter.^. 16-1