Engine tester H301 Series

aeronauticalportableautomatic

Environmental Control System Tester The H301 Series Environmental Control System (ECS) Tester measures and displays parameters required to test and troubleshoot aircraft heating and air conditioning systems. These parameters include temperatures, pressures, resistances, ac and dc voltages, and dc currents. Housed in a wheeled accessory case that holds cables, pressure hoses, adapters and a temperature probe, the tester comes complete with all required instrumentation to maximize mission readiness. Temperature System Typically, the ECS Tester measures temperatures of the cockpit air supply, the avionics cooling air, the manifold and ambient air. A precise, internally-generated temperature signal is also available to verify proper operation of the H301 temperature measuring circuitry. Pressure System The pressure measuring system includes four different pressure transducers that measure from 0 to 20 inches of H2 0 and from 0 to 15, 0 to 60, and 0 to 300 psig. A single pressure can be connected to the 15 inch H2 0 transducer, while four pressures, selectable by deckmounted valves, can be connected to each of the other three psig transducers.