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- NSN 6340-01-643-7756
6340-01-643-7756
Description: Ice Detector
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Export Restrictions
Any part(s) quoted or sold by MilSpec.parts and re-sold (to a third party) CANNOT be sold to a USA embargoed country, company, entity, or person(s). Depending on the ECCN, these commodities may require export license or exception. Diversion contrary to U.S. law is prohibited. Unless otherwise noted, this sale, order or quote may include Munitions List Items (MLI) or Commerce Controlled List Items (CCLI). MLI/CCLI property is controlled by the US Government and in many cases cannot be transferred (exported, sold or given) to a foreign country, a non-US Citizen/National or a non- Permanent US Resident without a valid State/Commerce Department export authorization. It is the responsibility of (the Purchaser) to determine what the applicable requirements may be, to obtain all necessary authorizations, licenses or approvals and are subject to both review and acceptance by MilSpec.parts. The use, disposition, export and re-export of the property covered or included in this sale, order or quote is subject to the provisions of law referenced in End-Use Certificate DLA form 1822, DEC 2001, including, but not limited to, the Arms Export Control Act (22 USC 2751 et seq.); Export Administration Act of 1979 (50 USC App. 2401 et seq.) as contained under Executive Order 12924; International Traffic in Arms Regulations (22 CFR 120 et seq.); Export Administration Regulations (15 CFR 730 et seq.); Foreign Assets Control Regulations (31 CFR 500 et seq.) and the Espionage Act (18 USC 793 et seq.)
6340-01-643-7756 Properties
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NSN:6340-01-643-7756
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Description:Ice Detector
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Shelf Life:N/A
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DEMIL:NO
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UOM:--
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Ac Voltage Rating:24.0 volts
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Usage Design:Field and aircraft
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Design Type:Nontripod mounting
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Unpackaged Unit Weight:0.7 pounds
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Media Detected:Ice and water
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Part Name Assigned By Controlling Agency:Freezing-rain sensor
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Special Features:Output format: rs-422 output operates at 9600 bps; input voltage: 22 to 29.5 vdc; sensing mode: 5 w max; delcing mode: 27 w max; temperature range: operating: -55 degree to 77 degree celcius; storage: -65 degree to 90 degree celcius; random vibration: 7.9 grm (do-160c category e) ; base diameter: 2.88 in; base height: 3.81 in; plate size: 2.9x2.9x0.085 in; operating modes: sensing: operating with no ice or with probe ice thicknes below the set point.Deicing: operating with probe ice thickness exceeding the set point.
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Functional Description:Determine the presence of icing conditions. Its main component is a nickel allow rod that has a natural resonant frequency of 40khz. As ice collects on the rod, the added mass cause the resonant frequency to decrease. When the frequency decreases to 130h (or 0.02-in layer of ice) an internal heater automatically defrosts the sensor.