1、1.1 This npscfcatlon covera one type of relooity rignal oonrter of a reconnaisssnco canera oontrol system tor changirrg e frequency signal generated by a U-i9 ( ) baer ehall muet the requirements of Specifbation MIZA-7651 except as stated hereh. 3.4.2.1 Ambient pre88ure.- Arcing or damage to the oon
2、verter ahall not occur .5tn power irr applied in the ran fmn 3.44 to 30 inahee of mroury (50,000 cet to aea level altitude); the presa= my ramah ooostant or rsry at any rate up to and inoluding 0.5 iaoh por mod. I L Provided by IHSNot for ResaleNo reproduction or networking permitted without license
3、 from IHS-,-,-MIL-C-9385A 67 9999906 03q8627 3 -=9386(asra) 3.5 Component dstai1r.- Tim eohematie diwan and the time of such operation shall be not less than 5 mfnutee or great: than the time required to complete the required test. 4.3.1 Durability.- The converter ohall be conneoted to e circuit equ
4、ivalent to figure 2. The aipl aource, O, ehall be adjueted to 5 rme-rolte at 60 cyclse pa. eecond and mintained for i00 hOUIS. the aignal source C shall be adjusted to 5 rms volts at 600 cycles per second and nsiatalned for another 100 hours. to the performanct test specified herein. ehall constitut
5、e for rejecllon. In all festa except 4.3.1, which require operation ln the At the en of this time, The converter shall then be subjected Failure of the converter to pass the 4.3.2 Environmental 4,3,2.1 ionverter ehall be operated in either manner specified for the duTabi1ity test. Upon return to roo
6、m temperature and preasur the converter shell be tested in the manner apecified in the performance test. 4.3.2.2 Vibration,- Tests shall conform to vibration test procedure I of Specification MIL-E-5272. testo in either manner epecified for the durability test. of the test period, the converter shal
7、i be tceted in the uenner specified for the performnco. The converter shall be operated during these Upon cmpletion 4.3.2.3 Explosion proof.- The converter shall be tested for explosion proof test ia acoordance with Specification MIGC-7651. 403.3 equivalent to that shown on figme 2 with the signal s
8、ource O adjusted to 5 Radio interference.- The converter ebll be conneotad to a test circuit rolti at 60 cycles per second ani teated in accordance with Speclflcstion 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-7385A.67 7777706 0348633 5
9、. - 1.7651 Dn random samples chosen in the same mairner u for the durability test. incorporati When Government drawings, speciflcatlo, or other &ta are used for any purpose other than in conneation with a definitely re2ate Corsmirnsnt .procurement operation, the Uilitsd Stateo Goverment thereby incu
10、rs PO responmi- billty nor any obligation wbtaoever and the fact that the Government rmg have formuhted,furniehed, or in any way wippiqd the eaid drawings, .-“ epeoificationie, or other data io not to be regarded by iqplioatlon QC othsnriro ad ia any manner licensing the holder or any other pereon or oorporation, or conmy- any rightr m peumiarion to twI1uib,okare, um, or ml1 rn patsntod invention that my ln rsp Uy bo rdakd th6CgtO. L J=m wmE-2 I t I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
