H2900
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COCKPIT ENGINE INSTRUMENTATION Howell's H2900 Series Indicator/Monitor is a state-of-the art cockpit indicator that also functions as a health and usage engine monitor. Primary Display Options: • Engine Speed • Engine Temperature • Engine Torque • Engine Pressure Ratio (EPR) • Fuel Flow/Pressure • Oil Pressure/Temperature • OAT • DC Voltage Available Monitoring Functions include the options listed above as well as: • Identification and Usage Data including: • Aircraft/Engine Number • Engine Starts • Engine Hours • Engine Cycle Counting (Low Cycle Fatigue) • Hot Section Exposure • Exceedance Data • Trend Data Howell Instruments, Inc. 8945 South Freeway Fort Worth, Texas 76140

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Additional Features: Signal Input • One low-level DC input used to measure the output of the engine thermocouple harness. ANSI Type K thermocouple, range 0 to 1200 °C. • Two frequency inputs usually assigned to monitor engine speed. Inputs from 5 Hz to 20 KHz, 500 mV to 50 Vrms, range 5.0 to 120 %RPM. • Two discrete +28 VDC or 28V return inputs that can be used to monitor switch closures from weight-on-wheels or bleed air switches. • One analog 0 to 5 VDC, usually used to measure a signal from an amplified pressure transducer, for torque, EPR or PAMB. • RS-232 input used for data...

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