AIR FORCE MIL-PRF-38039 D-2013 SYSTEMS ILLUMINATED WARNING CAUTION AND ADVISORY GENERAL SPECIFICATION FOR.pdf

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1、 AMSC N/A FSC 6340 INCH-POUND MIL-PRF-38039D 14 August 2013 SUPERSEDING MIL-PRF-38039C 11 May 1998 PERFORMANCE SPECIFICATION SYSTEMS, ILLUMINATED, WARNING, CAUTION, AND ADVISORY, GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies of the Department of Def

2、ense. 1. SCOPE 1.1 Scope. This specification covers the general requirements for illuminated warning, caution, and advisory indicators and systems for use at aircrew stations. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4 or 5 of this specif

3、ication. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requiremen

4、ts of the documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications and standards. The following specifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, th

5、e issues of these documents are those cited in the solicitation or contract. Comments, suggestions, on this document should be addressed to: Oklahoma City Air Logistics Center/ENSDAA, 3001 Staff Drive, Tinker AFB, OK. 73145 or emailed to tinker.dsptinker.af.mil. Since contact information can change,

6、 you may want to verify the currency of this address information using Assist Online database at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-38039D 2 DEPARTMENT OF DEFENSE SPECIFICATIONS JSSG-2010 - Crew Systems MIL

7、-DTL-7788 - Panels, Information, Integrally Illuminated DEPARTMENT OF DEFENSE STANDARDS MIL-STD-411 - Aircrew Station Alerting Systems MIL-STD-461 - Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment (Copies of these documents are available onlin

8、e at http:/assist.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 Non-government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the iss

9、ues of these documents are those cited in the solicitation or contract. RADIO TECHNICAL COMMISSION FOR AERONAUTICS (RTCA) RTCA/DO-160 - Environmental Conditions and Test Procedures for Airborne Equipment (RTCA documents may be obtained at www.rtca.org or addressed to RTCA Inc., 1828 L Street, NW, Su

10、ite 805, Washington, DC 20036.) AMERICAN SOCIETY FOR QUALITY (ASQ) ASQ Z1.4 - Sampling Procedures and Tables for Inspection by Attributes (ASQ documents may be obtained at http:/www.asq.org/ or addressed to American Society for Quality, P.O. Box 3005, Milwaukee, WI 53201-3005 or 600 North Plankinton

11、 Avenue, Milwaukee, WI 53203.) SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) SAE-AS18012 - Markings for Aircrew Station Displays Design and Configuration of (SAE documents may be obtained at http:/www.sae.org/ or addressed to Society of Automotive Engineers, Inc., 400 Commonwealth Drive, Warrendale, PA 1509

12、6.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-38039D 3 2.4 Order of precedence. Unless otherwise noted herein or in the contract in the event of a conflict between the text of this document and the references cited herein, the text of t

13、his document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to a first article inspection in accordance with 4.2. 3

14、.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageou

15、s life cycle costs. 3.3 Materials. Al materials shall be suitably treated to resist corrosion due to electrolytic decomposition, fungus, salt spray, and any other atmospheric condition that may be encountered during operational use and storage. 3.3.1 Nonmagnetic materials. Nonmagnetic shall be used

16、for all parts, except where magnetic materials are essential. 3.3.2 Toxic chemicals, hazardous substances, and ozone depleting chemicals (ODCs). The use of toxic chemicals, hazardous substances, or ODCs shall be avoided, whenever feasible. 3.4 Design. The design criteria, display, and presentation c

17、haracteristics of the indicators and their corresponding systems shall be in accordance with MIL-STD-411. All components shall be readily accessible. 3.4.1 Indicator display. 3.4.1.1 Dimensions. The length of indicator displays shall not exceed 1.500 0.015 inches. The minimum height of letters in th

18、e individual legends shall be as specified in SAE-AS18012. The legend marking shall be a minimum of 0.140 inch high unless more than one line is required in which case it shall be a minimum of 0.125 inch high. 3.4.1.2 Visibility and legibility. All legends shall be sharply defined and readable when

19、viewed from within an operational environment. When illuminated, the visibility of all legends shall not be restricted by the periphery of the enclosure for the indicator display. 3.4.1.3 Lighting requirements. 3.4.1.3.1 High ambient lighting conditions. Legend visibility and legibility under high a

20、mbient lighting conditions shall be provided. Contrast between the lighted and unlighted portions of each indicator display, under ambient lighting conditions, shall be at least 1.0 when energized at rated voltage (5V). Provided by IHSNot for ResaleNo reproduction or networking permitted without lic

21、ense from IHS-,-,-MIL-PRF-38039D 4 3.4.1.3.2 Reduced voltage. Reduced voltage, when the primary panel lighting is ON, shall be in accordance with MIL-STD-411 and this specification. 3.4.1.4 Mounting and interchangeability. Legend lights shall be mounted flush with the top surface of the panel whenev

22、er possible. To avoid possible obscuration by displays, the legend light may be raised to the level of the adjacent displays. If individual display indicators are used for the output of each of the readout circuits, they shall be interchangeable and the mounting shall be such that the displays may b

23、e changed from outside the assembly. 3.4.2 Master warning, master fire warning, and master caution light reset. Master warning, master fire warning, and master caution indicators shall incorporate push-to-reset light devices for extinguishing the light precautions. The load required to extinguish th

24、e push-to-reset light device shall be 2 0.5 pounds. 3.4.3 Circuits. Only solid state circuits shall be used. 3.4.3.2 Label. The indicator display system, as exposed to the pilot, shall contain a PRESS TO TEST label and a WARNING, CAUTION, and ADVISORY SYSTEM label. The labels shall be prepared in ac

25、cordance with an industrially accepted method (see 6.3.4). 3.4.3.3 Controls. The controls for the indicator system may be either one or two sections. If in one section, the indicator displays shall be mounted on the visible portion of the case. The number of sections and size of the case shall be su

26、bject to approval of the procuring activity (see 6.2). 3.4.3.3.1 Sealing. The case shall be filled and hermetically sealed. The label indicating the function of the panel (WARNING, CAUTION, or ADVISORY SYSTEM) shall not be within the hermetically sealed case. The case shall allow internal mechanisms

27、 to be removed, replaced, and the case refilled and resealed without the use of special tools or fixtures unless they are approved by the procuring activity (see 6.2). 3.4.3.3.2 Filling medium. The filling medium shall be of at least 98% purity, free of dust particles, and shall contain not more tha

28、n 0.006 milligram of water vapor per liter (dewpoint - 65C at the filling pressure). The filling medium shall be 88% to 92% nitrogen and the remainder helium. The absolute pressure of the filling medium in the case shall be approximately 1 atmosphere. 3.4.4 Wiring. Internal wiring shall be color cod

29、ed according to an industrially accepted method (see 6.3.1). 3.4.5 Test provisions. Provisions, such as test points, shall be made for testing all subsystem circuitry and indicator lamp circuitry. 3.4.5.1 Press-to-control. All master warning, master fire warning, master caution, and advisory lights

30、shall be activated when the press-to-test control is depressed. The indicator Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-38039D 5 legends and warning lights shall be deactivated when the control is released. The master warning, master fi

31、re warning, and master caution lights must be reset. 3.5 Interface. 3.5.1 Light source. The indicator light source shall be replaceable without the use of special tools. 3.5.2 Finish. All nonfunctional portions of the system exposed to view from the cockpit shall be finished in lusterless gray or lu

32、sterless black (see 6.2 and 6.3.2). 3.5.3 Color and light diffusion. The color and light diffusion characteristics of components of an individual indicator shall be in accordance with MIL-STD-411. 3.5.3.1 Legend. The legend for components of an individual display shall be in accordance with JSSG-201

33、0. 3.5.4 Control panel. The control panel for the grouped indicators shall be in accordance with MIL-DTL-7788, where applicable. Master warning, master fire warning, master caution, and summation (if used) lights that indicate the condition of an entire subsystem shall be set apart from the indicato

34、rs which show the status of the subsystem components. The location of critical function indicators, if any may be specified by the procuring activity (see 6.2). 3.6 Performance. 3.6.1 Expected life. The warning caution, advisory, and press to test circuits shall have a life of 2,000 cycles and the m

35、aster warning, master fire warning, and master caution circuits shall have life of 40,000 cycles without overhaul or repair (except for indicator light source replacement). 3.6.2 Electromagnetic interference. The system shall meet the electromagnetic interference requirements of MIL-STD-461 as speci

36、fied for class ID equipment. 3.6.3 Dielectric strength. The system shall withstand a potential, applied between the connector pins and the case, of 500V rms, commercial frequency, at sea level and 250V rms at 50,000 ft altitude pressure equivalent, without allowing current flow above 500 microampere

37、s. 3.6.4 Structural integrity. There shall be no damage to the system electrical connector or the case when a force of 60 pounds is applied to the connector along each of the three mutually perpendicular axes of the case. 3.6.5 Power consumption. The maximum power consumption shall be as specified i

38、n the acquisition documents (see 6.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-38039D 6 3.7 Signal source. Actuation of an indicator light shall be initiated by a circuit closing device (sensor) which shall not be considered a part of

39、 the system required to meet the tests specified herein. 3.8 Fastening hardware. Fastening hardware shall be self-locking or otherwise secured so it will not come loose in service. 3.9 Item identification and nameplate. Equipment, assemblies, and parts shall be marked for identification and each ind

40、icator system shall have a permanently attached metal nameplate with the following information: Nomenclature Applicable military specification Design Activity, Cage Code Manufacturers I.D. (if different from design activity) Contract or purchase order Serial number (if assigned) Additional requireme

41、nts may be specified by the procuring activity (see 6.2). 3.10 Interchangeability. All parts having the same manufacturers part number shall be functionally and dimensionally interchangeable. 3.11 Environmental conditions. The warning, caution, and advisory system shall meet the requirements of this

42、 specification when exposed to the following environmental conditions: a. Temperatures ranging from -54 to +85oC with rated voltage applied to the indicator. b. Vibration as described in RTCA/DO-160, Section 8, Figure 8-4, Curve Y. c. Shock impact of 15g without causing malfunction of any part of th

43、e system except indicator light source. d. Relative humidity up to 95%. e. Fungus growth. f. Exposure to atmosphere containing salt-laden moisture. g. Exposure to sand and dust. h. Acceleration of 10 g applied in each of three mutually perpendicular directions. i. Altitudes ranging from sea level to

44、 100,000 feet. j. Explosive atmosphere. k. Leakage (immersion). l. Solar radiation. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.2). Provided by IHSNot for ResaleNo reproduction or networ

45、king permitted without license from IHS-,-,-MIL-PRF-38039D 7 b. Conformance inspection (see 4.3). 4.1.1 Requirements cross-reference matrix. Table I provides a cross-reference matrix of the section 3 requirements tested or verified in paragraphs below. TABLE I. Requirements cross-reference matrix. R

46、EQUIREMENT VERIFICATION REQUIREMENT VERIFICATION 3.2 4.5.1 3.4.5.1 4.5.1 3.3, 3.3.1, 3.3.2 4.5.1 3.5.1 4.5.1 3.4 4.5.1 3.5.2 4.5.1 3.4.1.1 4.5.1 3.5.3 4.5.1 3.4.1.2 4.5.1, 4.5.6.1 3.5.4 4.5.1 3.4.1.3.1 4.5.6.1 3.6.1 4.5.9 3.4.1.3.2 4.5.6.1 3.6.2 4.5.5 3.4.1.4 4.5.1 3.6.3 4.5.3 3.4.2 4.5.1 3.6.4 4.5.

47、8 3.4.3.1 4.5.1 3.6.5 4.5.4 3.4.3.2 4.5.1 3.7 4.5.2 3.4.3.3 4.5.1 3.8 4.5.1 3.4.3.3.1 4.5.7.12 3.9 4.5.1 3.4.3.3.2 4.5.10 3.10 4.5.1 3.4.4 4.5.1 3.11 4.5.7 & all sub-paras. 3.4.5 4.5.2 4.2 First article inspection. First article inspection shall consist of all examinations and tests described in 4.5

48、. The test sequence is as shown in table II. Tests shall be conducted on two groups (A and B) as follows: TABLE II. Testing sequence. Test Paragraph Group A Group B 4.5.1 1 1 4.5.2 2 2 4.5.3 14 4.5.4 3 3 4.5.5 15 4.5.6 8 8 4.5.7.1 5 5 4.5.7.2 6 6 4.5.7.3 7 7 4.5.7.4 9 4.5.7.5 10 4.5.7.6 11 4.5.7.7 1

49、2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-38039D 8 TABLE II. Testing sequence - (Continued). 4.5.7.8 13 4.5.7.9 4 4 4.5.7.10 16 4.5.7.11 17 4.5.7.12 18 4.5.7.13 21 4.5.8 19 4.5.9 20 4.3 Conformance inspection. This inspection shall include the tests in 4.3.1 and 4.3.2. 4.3.1 Individual inspection. The system