The CCDI Model 77 was custom developed for leak testing A-B plates of turbine fuel/exhaust heat exchanger units used on the M1 Abrams tank. It pressurizes the part that is under test and measures 0-50 sccm airflow leakage. The unit is comprised of 20 Mass Flow Sensors, calibration reference orifice, a pneumatically controlled ram for the pressure chamber, transport unit and guard door. The loading and unloading sequence is all computer controlled and can also store results on a network ready computer.