1、/-7 MIL-R-211073A 66 7997706 01130257 5 = l5APRIL 1960 MI L-R-21073 (AER 1 I MAY 1958 SUPERSEDING MILITARY SPECIFICATION RECORDER, MAGNETIC DISTORTION, RO-32/ASQ This specification has been approved by the Bureau of Naval Weapons, Department of the Navy. 1. SCOPE 1.1 S cope - The equipment covered b
2、y this specification shall provide a dual recording milliammetewable of recording energy in the frequency range of O to 3 cps on suit- able paper when energy is applied from either or both of two separate sources. Classification - The Recorder, Magnetic Distortion, RO-32/ASQ shall be of one type and
3、 shall cons- of the folIowing: 1.2 Max. Allow. Max. Type Size (Inches) Allow. APPl. Item Designation w H/L D Wt. Lbs. Para. Recorder, Magnetic Distorition RO-32/ASQ 5-3/4 7-318 6-1/2 8.8 3.5 2. APPLICABLE DOCUMENTS 2.1 SPECIFICATlONS Genezal - The following documents of the issue in effect on the da
4、te of in- vitation for bids form amthis specification to the extent specified herein: Militarv MIL-E-4682 Electron Tubes and Transistors, Choice ad Application of MIL-W-5088 Wiring, Aircraft, installation of MIL-E-5400 Electronic Equipment, Aircraft, General MIL-T- 5422 Specification for Testing; En
5、vironmental Aircraft Electronic Equipment interference Limits, Tests and Design Requirements, Aircraft Electrical and Electronic Equipment Control Panel; Aircraft Equipment, Rack or Console Mounted MIL-1-6181 MIL-C-6781 MIL-P-7788 Plate, Plastic, Cockpit and Interior Controls Provided by IHSNot for
6、ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-2L073A bb 797770b OL30Zb0 1 MIL-R-21073A (WEP) MIL-P- 17555 Preparation for Delivery of Electronic Equipment; Miscellaneous Electrical Equipment (Except Rotating Electrical Equipment) and Associated Repair Parts inspect
7、ion, for Aircraft Electronic Equipment; Format for Nomenclature and Nameplates for Airborne Electronic and Associated Equipment Fastener, Control Panel, Aircraft Equipment MIL-T-18303 Test Procedures, Preproduction and MIL- N- 1 8307 MIL- F-25173 STANDARDS Military MIL-STD-704 Electric Power, Aircra
8、ft, Characteristics and Utilization of MS 25245 Connections - input Power Airborne Electronic Equipment; 28-Volt DC, 115-Volt Single Phase AC, and/or 115/200-Volt Three Phase AC, or combinations PUBLICATIONS - LWreau of Naval Weapons EI- 3 5 2 Avionics Installation Instruction for Magnetic Distortio
9、n Recorder RO-32/ASQ SAR-300 Material Changes and Material Bulletins; Preparation of 2.2 Availability of Documents - (1) When requesting specifications, standards, drawings, and publications refer to both title and number, Copies of this specification and applic- able specifications required by cont
10、ractors in connection with specific procurement functions may be obtained upon application to the Commanding Officer, Naval Supply Depot, Code CDS, 5801 Tabor Avenue, Philadelphia 20, Pennsylvania. 3, REQUIREICIENTS of major design objectives shall be th e prime consideration. in so doing, the follo
11、wing shall (1) Parts and materials requirements shall conform to Specification (2) Nonrepairable subassemblies, as outiined in specification MIL-E-5400, shaii be used when practicable. The general size of the subassembly, and the amount of circuitry to be included therein shall be approved by the pr
12、ocuring activity, Nonrepairable subassemblies must be reliable. A mean-time-to failure of more than 5000 hours should be the goal of a. 1 Parts and Materials - In the selection of parts and materials, fulfillment govern: MIL-E-5400, each, i. IL.- - - 2 Provided by IHSNot for ResaleNo reproduction or
13、 networking permitted without license from IHS-,-,-MIL-R- 21073A NEP) (3) When previously produced models of this equipment did not use non- repairable subassemblies, the design shall not be changed to employ nonrepairable assemblies without the approval of the procuring activity, 3.1.1 Nonstandard
14、Parts and Material Approval - Approval for the use of non- standard parts and materials shall be obtained as outlined in Specification MIL-E-5400. Electron Devices - Electron tubes, transistors and diodes shall be chosen and applied, and the complements reported as outlined in Specification MIL-E-46
15、82. The comple- ment report ,must be submitted to the procuring activity for review and approval prior to prepro- duction testing. . 3.1.2 3.2 Design and Construction - 3.2.1 General - The equipment shall conform with all the applicable requirements of Specification MlL-E-mr design, construction and
16、 workmanship, unless otherwise specified herein. Service Conditions - The equipment shall operate satisfactorily under any of the environmental and mechanical service conditions or reasonable combination of these condi- tions as specified in Specification MIL-E-5400 for Class I equipment, with the f
17、ollowing modifica- tions: 3.2.2 3.2.2.1 Temperature - The equipment shall operate satisfactorily over the temp- erature rangel of minus 30“ to plus S3“C. Altitude - The equipment shall operate satisfactorily at all altitudes from sea level to 10,000 feet.Nopermanent damage shall result when the equi
18、pment is transported to any altitude up to 50,000 feet while in an operating or non-operating condition. Satisfactory opera- tion shall resume immediately when pressure equivalent to 10,000 feet altitude is returned. estabiish normal performance requirements and for making laboratory bench tests on
19、the equip- ment. 3. 2. 2. 2 3. ?. 3 Standard Conditions - The following conditions shall-be used as a basis to Temperature Room ambient 25C 115.C Altitude Normal ground Vibration None Humidity Input power voltage Room ambient up to go% relative humidity 115 however, there are no requirements on equi
20、pment performance at frequencies below the lower established operating limit. input Power Connection - input power connections shall be in accordance with MS 26246, except that the inverter starting reiay circuit is not required. Overload Protection - Overload protection for the equipment shall be p
21、ro- vided in the equipment. AL1 parts and circuits of the equipment which are likely to carry an over- load due to any failures or poor adjustments shall have suitable protective devices or shall be proportioned to withstand such overload without permanent damage to the equipment, The use of fuzes a
22、nd other protective devices shall be held to a minimum. below the mnimum specified and shall automatically resume normal operation when the voltage returns within limite. 3.2.7 Control Panels - All rack or console mounted control panels shall conform 3.2.8 3.2.8.1 3.2.9 3.2.10 3.2.10,l ndervoltage P
23、rotection - The equipment shall not be damaged by voltages 3.2.11. Moisture and Fungus Resistant Treatment - Equipments shall be fungue- proofed by selection of parts and materials as non-nutrient for fungu s or the parts and materials ahall be treated prior to their use in the equipment so that ove
24、r-all spraying of the equipment is not necessary. approval for equipment Identification shall be in accordance wth Specification MIL-N-18307. See 6.4, quirements as defined in Specification MIL-E-5400. shall be as specified in Specificatio- . pec c test points and test facilities shall be provided t
25、o the greatest extent practicable for ease of field testing and maintenance. 3.2.12 3.2.13 3.2.14 Nomenclature and Nameplates - Nomenclature assignment and nameplate interchangeability - The equipment shall meet the interchangeability re- Maintenance Provisions and Field Testing - Provisions for mai
26、ntenance - -, r- - - _. - -e I 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-R-23073A 66 W 7977706 0330263 7 W 3.2.15 interference Control - The generation of radio interference by the equip- ment and the vulnerability of the equipment to r
27、adio interference shall be controlled within the limits of Specification MTL-1-6181. Performance - The performance of the Recorder RO-32/ASQ shall meet the requirements of this specification. 3.3.1 Warm-up Time - No warm-up time for the equipment shall be required under standard conditions. The warm
28、-up time shall not exceed 15 minutes at extreme service conditions. 3.3 I 3.3.2 Frequency Characteristics - The equipment shall record satisfactorily over the input frequency range of O to 3 cps (upper half power point at 4 *1 cps), 3.3.3 Recording - The equipment shall produce a continuous graphic
29、recording of input signals within the frequency range specified herein, 3.3.4 Range Scale - Recording shall be on a 4-inch curvilinear chart (50 minor chart divisions) with center zero, Time markings shall be a light line every 1/2 inch with a heavy line every three (3) inches. in addition, markers
30、shall be provided by which time increments down to one second may be estimated at a paper speed of three (3) inches per minute, 3.3.5 Recorder Sensitivity - Full-scale deflection of the recording pen from the zero center shall result from an input of O. 5 milliampere of either a positive or negative
31、 polarity signal over the range of O to 3 cps. The recording shall, throughout the range scale, be a true representation of the input to an accuracy of one minor chart division over the range of O to 3 cps under all service conditions. I 3.3.6 Paper Speed - The paper speed shall be 3/4 inch, 3 inche
32、s, and 12 inches per minute. Paper speed shall be accurate to within *3% at a line frequency of 400 cycles per second, The paper speed shall be directly proportional to line frequency changes from 380 to 420 cycles. I 3.3.7 Provision for Use of Chart Paper - A take-up spool shall be prqvided for use
33、d chart paper, and provisions shall be incorporated for allowing examination of this chart when desired, It shall be possible to write on the recording chart concurrently with recording in order to identify signals. 3.3.8 recorder installed in its mounting rack. that there is a relatively uniform br
34、ightness over the entire viewing area, The maximum bright- ness however, it may be reworked by the contractor and submitted for acceptance as a production equipment. It may not be resubmitted a8 the production sample model, 4.2.4 Preproduction Approval - Approval of the preproduction model shall be
35、by the upon satisfactory completion of all testis. No production equipments shall Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ML-R- 21073A (WEP) 4.3 Production Sample Tests - When requested by the procuring activity, one equipment shaii be select
36、ed from the first 10 production equipments submitted for acceptance and sent to a designated government laboratory for teAs. The equipment shall be selected by the government inspector after the equipment has successfully passed all individual tests. Scope of Tests - This equipment may be subjected
37、to any and all tests the procuring activitydeems necessary to assure that the production equipment is equivalent to the previously approved preproduction sample in design, construction and performance and that it meets all applicable requirements. Production Sample Approval - Approval of the product
38、ion sample shall be by the procuringactivity upon satisfactory completion of all tests. Any design, material or performance defect made evident during this test shall be corrected by the contractor to the satisfaction of the procuringactivity. Upon failure of the production sample to pass any of the
39、 tests, delivery of equipment under the contract shall cease until proper corrective action is approved and accomplished. Corrective action shall also be accomplished on equipment previously accepted-when required by the procuring activity. 4.3.1 4.3.2 . 4.3.3 Reconditioning of Production Test Sampl
40、e - After completion of the production sample tests the equipment shall be returned to the contractor for any necessary rework. The equipment shall then be resubmitted for acceptance. Acceptance Tests - The contractor shall furnish all samples and shall be responsible for accomplishing the acceptanc
41、e tests. All inspection and testing shall be under the supervision of the government inspector. Contractors not having testing facilities satisfactory to the procuring activity acceptable to the procuring activity. The contractor shall furnish test reports showing quantitative results for all accept
42、ance tests. Such reports shall be signed by an authorized representative of the contractor or laboratory, as applicable. Acceptance or approval of material during the course of manufacture shall not be construed as a guarantee of the acceptance of the finished product. Accephnce tests shall consist
43、of the fallowing: 4.4 shall engage the service of a commercial testing laboratory (1) individual Tests (2) Samplhg Tests (3) Special Tests 4.4.1 Individual Tests - Each equipment submitted for acceptance shall be subjected to the individual tests. These tests shall be adequate to determine complianc
44、e with the require- ments of material, workmanship, operational adequacy and reliability. As a minimum, each equipment accepted shall have passed the following tests: (1) Examination of Product (2) Operational Test (3) Manufacturing Reliability Test Examination of Product - Each equipment shall be e
45、xamined carefully to determine Operational Test - Each equipment shall be operated long enough to permit the equipment temperature to stabilize and to check sufficient characteristics and record adequate data to assure satisfactory equipment operation, 4.4.1.1 that the material and workmanship requi
46、rements have been met. 4.4.1.2 -=- O Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-2L073A hb W 777770b 0330268 b W MIL-R- 21073A WP) 4.4.1.3 Manufacturing Reliability Test - Each equipment shall be operated under the conditions specimerein fo
47、r a period of 6 hours without failure. A failure shall be defined aa anything which causes malfunctioning of the equipment. Only those adjustments will be permitted which can be made by using such controls and adjustments that are accessible to the operator during the normal use of the equipment, Te
48、mperatur e Ambient room Humidity Ambient room Vibration (10 minutes) Any selected frequency within the range of 20 to 30 cps (excluding resonant points) and a minimum amplitude of f 3 gs The quipment shall be vibrated (without vibration isolators) for a period of 10 minutes prior to the beginning of
49、 the 6-hour period of operation. Where feasible, the equipment shall be operated during this vibration period for the purpose of detecting flaws and imperfect workmanship. Operation within the specified limits of satisfactory performance .is not necessarily required during the vibration period. The direction of vibration should be vertical to the normal iPiounting plane for 5 minutes and lateral to that plane for 5 minutes. Where it is not feasible to vikrate the equipme
