Aerospace Proximity Sensors 32318768 IHM Series Issue 1 Datasheet FEATURES Industry-leading indirect lightning and dielectric ruggedness: Meets the increased requirements of todays composite aircraft and most challenging applications including landing gear, thrust reversers, and flight controls Superior vibration ruggedness: Capable of withstanding extremely high vibration applications Environmentally rugged: Fully hermetic packages provide long-term reliability in very harsh environments by eliminating the potential for contamination of the sensor from the application environment. In addition, Honeywell has developed an innovative method to hermetically seal wire- lead (pigtail) configurations Integral Health Monitoring Capability: Optional third output state to indicate the health of the sensor (whether it is healthy DESCRIPTION or failed). Reduces maintenance time, reduces delayed flights, Honeywell has over 30 years experience designing and and lowers overall maintenance cost across the life of the delivering accurate and reliable proximity sensors that are aircraft currently used in a variety of military and commercial aircraft. Non-contact design: Utilizes non-contact technology to Honeywells patented IHM Series Aerospace Proximity Sensors sense the presence or absence of a target regardless of the are configurable, non-contact, hermetically sealed devices dirty, harsh environment in which it is placed, eliminating designed to sense the presence or absence of a target in mechanical failure mechanisms, reducing wear, minimizing harsh-duty aircraft applications. The IHM Series provides on/ downtime, increasing durability, and increasing reliability off output, and can be configured with an optional health monitoring output to the host system. The technology POTENTIAL APPLICATIONS Honeywell uses in the IHM Series is considered an improvement Thrust reverser actuation system (TRAS) (stowed or deployed on traditional ECKO (Eddy Current Killed Oscillator) status) topology that previously had been the standard in aerospace Doors (open/closed position, locked status) applications. The IHM Series helps to reduce downtime and Cargo loading latch detection (palet locked) maintenance costs due to a unique circuit that can detect any Evacuation slide door-lock mechanism internal failures and display a fault output instead of a false Flight controls (flap/slat, spoilers) positive or false negative. Landing gear (uplock, downlock, & Weight On Wheels (WOW)) VALUE TO CUSTOMERS DIFFERENTIATION Enhanced vibration and EMI specifications help to increase Diagnostic capability: Integral Health Monitoring: revenue (flight hours) and reduce cost to serve (system sinks 9 mA 1 mA or <1 mA on fault detection maintenance) Honeywell has developed an innovative method to Hermetic sealing helps increase revenue (flight hours), reduce hermetically seal wire-lead (pigtail) configurations cost to serve (maintenance), & reduce cost of goods (spares) Fire detection/integrity: Explosion proof RTCA/DO-160G Platform approach helps to increase revenue (speed Section 9, Cat E&H to market) and reduce cost to serve (lower engineering Operational shock: RTCA/DO-160G Section 7, Cat B investment) Crash safety: RTCA/DO-160G Section 7, Cat B Health monitoring helps to increase revenue (flight hours), Radio frequency emission: RTCA/DO-160G Section 21, Cat M reduce cost to serve (maintenance), and reduce cost of goods Lightning induced transient susceptibility: RTCA/DO-160G (spares) Section 22, Cat B3K3L3 Supplier stability helps to reduce cost to serve (troubleshoot with original supplier) PORTFOLIO Current install base helps to reduce cost to serve (proven Honeywells IHM Series is part of a comprehensive line of performance and MTBF) aerospace sensors, switches, and value-added solutions. To view Honeywells complete product offering, click here. Sensing and Internet of ThingsAerospace Proximity Sensors, IHM Series Table 1. Performance Specifications Characteristic Parameter Mechanical Characteristics Weight 60 g to 150 g Sealing Hermetically sealed D38999/25YA98PN D38999/25YA98PA EN2997Y10803MN M83723/90Y1005N Connector/leads M83723/90Y10056 M83723/90Y10057 M83723/90Y10058 Pigtail Inline, cylindrical, threaded Right angle, cylindrical, threaded Form factor Inline, cylindrical, flanged Right angle, cylindrical, flanged Sensing distance 5 mm max. Sensing face Inconel Outer body material Stainless steel Sensor head diameter 13,5 mm 0.53 in Sensor length various 60 mm 2.36 in max. MTBF >1,000,000 flight hours Electrical Characteristics Supply voltage 12 Vdc to 28 Vdc Supply current <10 mA Operating temperature range -55 C to 115 C -67 F to 239 F Storage temperature range -65 C to 115 C -85 F to 239 F Open collector output, Open collector output, Output type Current sinking output Normally Closed Normally Open Switch closed Switch open Max. load current: 250 mA res. Target far Output current: 12 mA to 16 mA Max. leakage current: Output voltage drop: less than 2 V 50 mA 28 Vdc at 250 mA resisitve load current Switch closed Switch open Max. load current: 250 mA res. Target near Output current: 4 mA to 6 mA Max. leakage current: Output voltage drop: less than 2 V 50 mA 28 Vdc at 250 mA resisitve load current Output current: Internal failure n/a n/a <1 mA or 9 mA to 11 mA Target response time 5 ms Power on delay time <1 second Bonding resistance <2.5 mW Dielectric strength 1500 Vdc and 1500 Vac Insulation resistance 200 mW min. at 50 Vdc Sensing Characteristics Ga/Gd see Figure 2 Target material 17-4 PH stainless steel heat treated to condition H1025 Target dimension Rectangular target of 25 mm x 18 mm x 3 mm 2 sensing.honeywell.com