1、c MIL-L-82452A 13 M 797770b 03bL28b I M s-3 7-03 I I INCH - POUND I u MIL-L-82452A(OS) 6 October 1989 SUPERSEDING 10 May 1966 MIL-L-82452(OS) MILITARY SPECIFICATION LOGIC ASSEMBLY (For Exercise Head Mk 85) 3 This specification is approved for use by the Naval Sea Systems Command, Department of the N
2、avy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification.covers the requirements for procurement of two types of Logic Assembly (see 6.1.1). 1.2 Classification. The Logic Assembly shall be classified as follows: TYPE I Logic A
3、ssembly PL 5547531 TYPE II Logic Assembly PL 6098364 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the i
4、ssues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in im
5、proving .this document should be addressed to: Commanding Officer, Naval Ordnance Station, Standardization Branch (3730), Indian Head, Maryland 20640-5000, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMS
6、C N/A FSC 1355 DISTRIBUTION STATEMENT A. Approved for public release; distribution is nlimited. THIS DOCUMENT CONTAINS PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SPECIFICATIONS MI LI TARY MIL-P-116 Preservation, Methods of (Unless otherwi
7、se indicated, copies of federal and military specifica- tions, standards, and handbooks are available from the Naval Publications and Forms Center, (Attn: NPODS), 5801 Tabor Avenue, Philadelphia, PA 19120-5099.) 2.1.2 Other Government documents, drawings, and publications. The following other Govern
8、ment documents, drawings, and publications form a part of this document to the extent specified herein, Unless otherwise specified (see 6.2), the issues are those cited in the solicitation. /I Y DRAWINGS NAVAL ORDNANCE SYSTEMS COMMAND (CAGE Code 10001) DL 1330422 Logic Assembly shipping (packing) co
9、ndition 2540510 Exercise Head Test Set 2540522 Test Cable PL 5547531 Logic Assembly PL 6098364 Logic Assembly (Application for copies of NAVSEA drawings should be addressed to: Commanding Officer, Naval Ordnance Station, (ATTN: Code 802), Louisville, KY 40214-5001.) 2.2 Order of precedence. In the e
10、vent of a conflict between the text of this document and the references cited herein, the text of this 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 speci
11、fied (see 6.2), a sample shall be subjected to first article inspection (see 6.4) in accordance with 4.5. 3.2 Material and treatments of materials and parts. Unless otherwise specified in the contract or order, all materials and treatments of materials and parts used in the manufacture of the Logic
12、Assembly shall be in accordance with requirements specified herein and with the applicable documents listed in PL 5547531 or PL 6098364. , 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-L-82LI52A 33 7777706 O363288 5 M +40 Vdc +40 however, th
13、is does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to The inspection set forth in this specification The absence of any inspection requirements in the specification 1 accept defective material. 4.2 Classification of inspections
14、. Inspections of the Logic Assembly shall be classified as follows: l. I a. b. c. First article inspection (see 4.5). Periodic production inspection (see 4.6). Quality conformance inspection (see 4.7). 1 1 a 4.3 Test conditions. Unless otherwise specified, the Logic Assembly shall be subjected to te
15、sts under following conditions: a. Temperature Room ambient (60 to 95F) b . Humidity (relative) Room ambient, up to.95 percent c. Altitude Normal ground atmospheric pressure d. Vibrations None 4.4 Test reports. When specified in the contract or purchase order (see 6.2), a test report shall be prepar
16、ed (see. 6.3) covering the results of tests specified in 4.5, first article. covering 4.6 and 4.7 quality conformance tests and inspection, and forwarded to the contracting activity (see 6.3). A second test report shall be prepared 9 Provided by IHSNot for ResaleNo reproduction or networking permitt
17、ed without license from IHS-,-,-MIL-L-82q52A 33 m 997770b 0363275 2 MIL-L-82452A(OS) 4.5 First article sample. A first article sample of three Logic Assemblies, manufactured in accordance with 3.3, shall be subjected to first article tests specified in table VIII, in the listed sequence, at an activ
18、ity designated by the contracting activity. Acceptance of the first article sample shall be based on no defects in the sample. Further production of the Logic Assembly by the contractor, prior to approval of the first article sample, shall be at contractors risk, TABLE VIII. First article test sched
19、ule. 1 Logic Assembly-1 I Number I I - Sequence Test Description 1 2131 1 I Acceptance Tests and Examinations (4.7) x I x X 2 Vibration (4.5.2.1) Ix X 3 Shock (4.5.2.2) X X I 4 Temperature, storage (4.5.2.3.1) X X 5 Temperature, operating (4.5.2.3.2) xlx I 6 Pressure test (4.5.2.4) X X 7 Humidity te
20、st (4.5.2.5) X XI 8 Life test (4.5.2.6) I* 9 Acceptance Tests and Examinations (4.7) Ix X 10 Acceptance Tests and Examinations (4.7) x ! with column II values specified in 3.4 I 4.5.1 First article test equipment. The following items of test equipment are required to perform first article tests spec
21、ified herein: a. Vibration table that can vibrate the Logic Assembly, plus fixture weight at 3 gravitational acceleration units (gs) maximum over a frequency range of 5 to 500 Hz with a maximum double amplitude of 0.2 inch. b. A shock testing machine that can apply shocks of up to 300 gs maximum at
22、durations from 0.5 to 20 milliseconds. c. A temperature chamber that can program temperature variations over a range of -45 to +140F. 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-82LI52A 13 W 7777706 0363296 4 d. A humidity chamber that c
23、an provide a constant humidity condition of 95 percent at 110F for extended periods up to 8 hours. 4.5.2 Description of tests. 4.5.2.1 Vibration. a. Heat chamber to +140 +5, -OF in 2.5 Lfreq switch 2000 i I I 32 I I rpm levei control down i I 1 oscilloscope motor switch 4.7.3.2 Time mark generator c
24、ircuit. a. Position logic power switch to and connect oscilloscope between “timing marks“ and “ground“ jacks on test set panel. Oscilloscope shall display 3.5 to 6.5 volt pulses. 17 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-L-ZY5ZA 13 74794
25、Db 0361303 b. Remove oscilloscope from “timing marks“ and “ground“ jack and connect electronic counter to these jacks. display a time measurement of 490 to 510 milliseconds. Counter shall c. Remove counter from “timing marks“ and connect it between “tssf trig“ and “ground“ jacks on test set panel. C
26、ounter: shall display a time measurement of 490 to 510 milliseconds. d. Remove counter from “tssf“ and “ground“ jacks and connect oscilloscope between these jacks. 4.5 to 6.8 volt pulses. Oscilloscope shall display 4.7.3.3 Course gyro demodulator circuit. a. Position ac select switch to “demod“ and
27、connect digital dc voltmeter between “demod“ and “ground“ jacks on test set panel. Connect ac vtvm between “ac input calibrate and “ground“ jacks on test set panel. NOTE: AC INPUT CALIBRATE dial shall be set above 500 for O, O root-mean-square voltage and below 500 for 180, O rms voltage. b. Positio
28、n course gyro switch to idown“ and adjust ac input calibrate control for a null indication on ac vtvm. voltmeter shall indicate -0.01 to +0.01 Vdc. Digital dc c. Adjust ac input calibrate control for 5.0 2 0.1 Vrms (Oo O) indication on ac vtvm. Digital dc voltmeter shall indicate -0,345 to -0,414 Vd
29、c. d. Adjust ac input calibrate control for 10.0. & 0.1 Vrms (Oo O) indication on ac vtvm. Digital dc voltmeter shall indicate -0.671 to -0.828 Vdc. e. Return course gyro switch to center position, 4.7.3.4 RPM tachometer circuit. a. Connect digital dc voltmeter between iirpmO and iground“ jack on te
30、st set panel. switch to “rpm“. Position rpm switch to down and ac select b. Verify that rpm freq switch on test set panel is set at 2000, and rpm level control on test set panel is set at 32. dc voltmeter shall indicate -0.1 to +0.1 Vdc. Digital c. Vary rpm level control from 28 to 36. shall not var
31、y more than 10 mV, Digital dc voltmeter 18 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-82452A 13 777770b 03b1304 T d. e. f. g. h. 4.7.3.5 a. b. C. d. 1 Exercise head test set i Drawing 2540522 I I I TEST CABLE i I ! I Drawing 2540522 54810
32、r+ P4810 Logic assembly I I PL5547531 or PL 6098364 FIGURE 3. Loaic Assemblv test setm. Position rpm level control to 32 and rpm freq switch to 1900. Digital dc voltmeter shall indicate -0.35 to -0.55 Vdc. Vary rpm level control from 28 to 36. indication shall not vary more than 10 mv. Digital dc vo
33、ltmeter Position rpm level control to 32 and rpm freq switch to 1800. Digital dc voltmeter shall indicate -0.7 to -1.0 Vdc. Vary rpm level control from 28 to 36. indication shall not vary more than 10 mv. Digital dc voltmeter Return rpm switch to center position. Turnaway circuit. Verify that normal
34、 steering indicator is -illuminated. Position range switch to RB. 19 I- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-ZY52A 33 777770b 0363305 3 m 4,7.3.6 Squib logic circuit. 4.7.3.6.1 Connect digital dc voltmeter between “ald ind“ jack and
35、“ground“ jack on test set panel, 4,7.3.6.2 Hold inertia switch down momentarily, DCO squib, termination squib, and recovery indicators shall illuminate. 4.7.3.7 Power failure circuit. a a. Position logic power switch to “off“. Power failure indicator shall illuminate for 4 to 6 seconds, shall indica
36、te +39.0 to +41.0 Vdc. Digital dc voltmeter .-* b. Hold dco-ald reset switch momentarily to ald reset. voltmeter shall indicate -0.01 to +0.01 Vdc. Digital dc TYPE II ONLY. Position 200 ft. switch to “on“. DCO squib indicator shall illuminate. Position logic power switch to iton“ . DCO squib indicat
37、or shall extinguish. Position logic power switch to “off“. DCO squib indicator shall illuminate. Position 200 ft. switch to “off“. DCO squib indicator shall extinguish. c. Position logic power switch to llon“ and momentarily hold dco-ald o reset switch to dco position. Dco squib and termination squi
38、b indicators shall illuminate when switch is in dco position. Position logic power switch to “off“. d. Position logic power switch to ifon“ . elapsed, position logic power switch to “off“. Power failure indicator shall not illuminate. After 8 to 9 seconds has e. Position logic power switch to Ilon“
39、. have elapsed, position logic power switch to “off“. Power failure indicator shall illuminate. After 11 to 12 seconds 4.7.3.8 Minus 10 volt regulator circuit. a. Connect digital dc voltmeter to meter monitor jack and position dc volts switch to -10. b. Position logic power switch to lion“ . indicat
40、e -9.5 to -10.5 Vdc. Digital dc voltmeter shall c. Position dc volts switch to -40 and adjust -4OV power supply on test set for -38 & 0.5 Vdc indication on digital dc voltmeter. Position dc volts switch to -10 and record voltage indicted on digital dc voltmeter, d. Position dc volts switch to -40 an
41、d adjust -4OV power supply for -42.0 5 0.5 Vdc indication on digital dc voltmeter, Position dc 20 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ NIL-L-Z452A 33 7779706 0363306 3 volts switch to -10 and record voltage indicated on digital dc voltme
42、ter. e. The-difference between digital dc voltmeter indication in 4.7.3.8 (c and d) shall not exceed 0.1 Vdc. f. Repeat procedures in 4.7.3.1 e and f. g. Position all power switches to off and disconnect test equipment. 4.7.4 Visual inspections. 4.7.4.1 Identification marking. Nomenclature, control
43、callout and , identification data shall be correct, clear and legible in accordance with PL 5547531 or PL 6098364. 4.7.4.2 Interchangeability. a. Connector P4810 shall accept mating unit without resorting to selection, modification, or fitting in accordance with PL 5547531 or PL 6098364. b. Length s
44、hall be 5.99 inches maximum in accordance with PL 5547531 or PL 6098364. c. Width shall be 3.99 inches maximum in accordance with PL 5547531 or PL 6098364. 4.7.4.3 Packaging. Packaging shall be inspected for conformance to the requirements of Section 5. 4.7.5 Process verification. Criteria stipulate
45、d in this paragraph and Inspections stipulated are general in scope and technique its subparagraphs are applicable to the production process instead of specific units of product, and frequency of verification will be contingent upon specific process conditions. criteria findings indicate poor inspec
46、tion. Positive action by the contractor is required when process 4.7.5.1 Lacing. Lacing and cable configuration shall be in accordance with procedures approved by the contracting activity. verifying adequacy of cable lacing shall include visual and dimensional verification. Specific methods of 4.7.5
47、.2 Soldering. Soldered joints shall be in accordance with good commercial practices. “rosin“ joint shall be considered defective. Unsoldered connections or those of a “cold“ solder or 4.7.5.3 Cleanliness. Presence of foreign material in assembly shall classify unit as defective. Foreign material inc
48、ludes anything not intended to be present. e 21 ti Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I HIL-L-82LI52A 13 M 9977906 0363307 5 5. PACKAGING. 5.1 Preservation and packaging. level A or C as specified (see 6.2). Preservation and packaging sh
49、all be 5.1.1 Level A. Cleaning, drying, preservation, and packaging methods for level A shipment shall be in accordance with instructions contained in applicable documents listed in DL 1330422 (see 6.5.12). 5.1.2 Level C. Cleaning, drying, preservation and packaging shall be in accordance with the contractors commercial practice, when such practices have been approved by the contract
