Data sheet - Magnetometer heading sensor (MHS)
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Meggitt Avionics Flight displays > system • Digital output • All solid-state design • High resolution • Extensive Built In Test (BIT) • Reliability > 50,000 hours MTBF The Meggitt Avionics’ magnetometer heading sensor (MHS) is a standalone microprocessor-based unit that provides digital heading data output in ARINC 429 format (low speed standard, high speed optional). Accurate digital output of heading replaces fluxgate compasses and enables easier interfacing with modern aircraft systems and displays. The MHS is housed in a non-magnetic case and is compatible with existing fluxgate sensor installations. Heading is sensed from the earth’s magnetic field. Stabilised heading is derived from the three-axis magnetometer together with a two-axis attitude data, e.g. the Meggitt Avionics’ secondary flight display system. • Low weight < 0.661 lbs (0.3 kg) • Low power consumption (10 W including heater) • Fully functional within 15 seconds of start up Meggitt Avionics Our capabilities: Flight displays | Air data | Life support | Legacy © Meggitt Avionics | 2017 MEGGiTT smart engineering for extreme environments

Flight displays > system Magnetometer heading sensor Application of power to the system initiates the power up built in test (PBIT) which checks for: • correct processor • memory and heater function • calibration/correction data. The MHS internal heater ensures that the internal components reach operating temperatures within three minutes under low temperature conditions. The MHS has to be aligned to the axis of the aircraft and then calibrated following installation. Specification subject to change MEGGiTT smart engineering for extreme environments Fareham, Hants, PO15 5TT, UK © Meggitt...