Meggitt Avionics Static pressure transducer unit plus (SPTU+)
Meggitt Avionics Static pressure transducer unit plus (SPTU+)
Meggitt Avionics Static pressure transducer unit plus (SPTU+)
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<strong>Meggitt</strong> <strong>Avionics</strong>Air data›<strong>Static</strong> <strong>pressure</strong> <strong>transducer</strong> <strong>unit</strong> <strong>plus</strong>(<strong>SPTU+</strong>)Key features &benefits Outstanding reliability in allenvironments No periodic maintenance orcalibration required due tosuperb stability on a single<strong>pressure</strong> sensor. Monitors external discreteinput settings at power up Senses static <strong>pressure</strong> inputusing a solid state <strong>pressure</strong><strong>transducer</strong> and processesthisThe <strong>Meggitt</strong> <strong>Avionics</strong> static <strong>pressure</strong> <strong>transducer</strong> <strong>unit</strong> <strong>plus</strong> (<strong>SPTU+</strong>) isused with the high integration air data computer <strong>plus</strong> (HIADC+) as thedistributed air data system (DADS). The DADS is a dual-redundantsystem and uses the MIL-STD-1553B data bus to supply high accuracyair data parameters to the on-board mission computer. Interprets RS422 messages,configured to transmitfunction only Has built-in-test (BIT)monitoringThe <strong>SPTU+</strong> is designed around a micro - controller. <strong>Static</strong> <strong>pressure</strong> ismeasured with an integral absolute-<strong>pressure</strong> <strong>transducer</strong>.The <strong>SPTU+</strong> is housed in a special-to-type aluminium case with tappedaircraft mounting points. It has a static <strong>pressure</strong> port at one end and a 22pin electrical connector at the other which connects the aircraftelectrical power, discrete inputs and RS422 data interface.<strong>Meggitt</strong> <strong>Avionics</strong>Our capabilities:Flight displays | Air data | Life support | Legacy <strong>Meggitt</strong> <strong>Avionics</strong> | September 2011
Air data ›<strong>Static</strong> <strong>pressure</strong> <strong>transducer</strong> <strong>unit</strong> +(<strong>SPTU+</strong>)Current Platforms Lockheed Martin, C-130J Alenia Aeronautica, C-27J/JCAApplications Military and Civil aircraft fixed or rotary wingMilitary & CivilTransport Fixed/variable wing Rotary wingSpecificationsSize:5.54 x 4.0 x 3.3 inchesWeight:2.5 lbs (1.13 kg) maxOperating Voltage:28 VDC (nominal)Power:3.0 WOperating Temperature:-54° C to 71° CCommunications:RS-485/422ARINC-429MIL-STD-1553BStandardsMIL-STD-810EMIL-STD-454MRTCA/DO-178 Level BRTCA/DO-160<strong>Meggitt</strong> <strong>Avionics</strong>7 Whittle Avenue, Tel: +44 (0) 1489 483300 www.meggitt-avionics.co.ukSegensworth West, Fareham, Fax: +44 (0) 1489 483340 www.meggitt.comHants, PO15 5SH, UK <strong>Meggitt</strong> <strong>Avionics</strong> | September 2011
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