TEST CHAMBER ASSEMBLY EQUIPMENT DESCRIPTION AND DATA

TM 10-1670-305-23&P 0003 00-1 TEST CHAMBER ASSEMBLY 0003 00 EQUIPMENT DESCRIPTION AND DATA EQUIPMENT CHARACTERISTICS AND FEATURES CHARACTERISTICS (ALL MODELS) Provides all equipment required to test the AR2. CAPABILITIES AND FEATURES Capable of testing the AR2 in the operating range of 1,500 (feet) to 25,000 (feet) above mean sea level (MSL). CAUTION Damage to internal components of the AR2 will occur if tested at rates of fall between 65 and 85 ft/sec. MODEL 452 May be set to a rate of fall between 10 and 200 ft/sec. MODEL 453 May be set to a rate of fall between 10 and 240 ft/sec except that rates between 65 and 85 ft/sec cannot be selected. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS (MODEL 452) The test chamber basically consists of an air compressor, vacuum pump, altitude chamber with switch lever, lid and air cylinder, and a control assembly. All components are attached to a mounting base and are contained in a carrying case which also serves as the storage container. The control assembly consists of a pressure (PSI) gage, ALTITUDE CONTROL (vacuum) regulator, CLIMB/FALL/COCK switch, RAPID FALL dump switch, PRESSURE CONTROL regulator, indicator light, ON/OFF switch, fuse, and an altimeter (ALT) on the control housing. Inside the control housing are a power supply for the altimeter vibrator, a dump solenoid valve, climb solenoid valve, air cylinder solenoid valve and all required plumbing and wiring.