1、 A-A-52526 9999974 OLb8b75 T95 METRIC A-A-52526 - SUPERSEDING 4 May 1967 MIL-T-62063 (AT) COMMERCIAL ITEM DESCRIPTION TIME DELAY UNIT; ADJUSTABLE, SOLID STATE (METRIC) The General Services Administration has authorized the use of this commercial item description (CID) for all federal agencies. 1. SC
2、OPE. This CID covers a solid state, electrical time delay unit capable of providing an adjustable time delay cycle at a specific time between 50 milliseconds (mec) and 10 seconds, with a minimum output of 2 amperes at 28 volts, for use in direct current (dc) electrical circuits. The input of the tim
3、e delay unit is solid state but the output may be solid state or relay. The electrical time delay unit is referred to herein as “time delay”. 2. SALIENT CHARACTERISTICS. 2.1 Materials . Materials shall be as specified herein. Materials not specifically designated shall be suitable for use in the tim
4、e delay operating over an ambient temperature range from -54C to 85 “C without any change in physical or dimensional properties that would result in operation of the time delay outside of the limits herein specified. The use of recovered materials made in compliance with regulatory requirements is a
5、cceptable providing that all other requirements of this CID are met (see 3.). Beneficial comments, recommendations, additions, deletions clarifications, etc. and any other data which may improve this document should be sent by letter to: U.S. Army Tank-automotive and Armaments Command, ATTN: AMSTA-T
6、R-E, Warren, MI 48397-5000. FSC 5945 NT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52526 m 9999974 0368676 921 m A-A-52526 2.1.1 - . ? id. The JANTX, JANTXV, and JANS versions of sem
7、iconductor devices shall be used and shall be made of silicon or organic materials. 2.1.2 Capachs. Capacitors shall be fied type with plastic or metal cases. 2.1.3 Resistors. Resistors shall be fixed type and shall be film, composition or wire-wound. 2.1.4 Relap. Relays shall be electromagnetic. . E
8、xcept where necessary to complete an electrical circuit, contact . 2.1.5 between dissimilar metals which would encourage galvanic action shall be avoided. 2.2 clearance dimensions and shall be contained within the envelope outline indicated thereon. * . Time delay shail conform to figure 1 with resp
9、ect to mounting and TIME DELAY CIRCUIT OUTPUTS PIN 1 (+) PIN 2 - PIN 3-1 PIN 4 -=- PIN 5 PIN 6 (-) PIN 7 PIN 8 PIN 9 .3t PINS 3 AND 4 MUST BE CONNECTED TO POSITIVE POTENTIAL RELATIVE TO PINS 2 AND 5 RESPECTIVELY - CONNECTION OPTIONAL 6.4 6.4 COLORED PIN DELAY ADJUSTMENT MULTI TURN POTENTIOMETER -9 P
10、IN SEALED HEADER (0 20.3) NOTES: 1. Dimensions are in millimeters (mm). 2. Tolerances are +.2/-3 mm. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- A-A-52526 D 9999974 0368677 868 m A-A-52526 . 2.2.1 modules are used, the encapsulated circuitry s
11、hall be shown. The diagram shall be marked white-on-black on the housing in a readily accessible location. Height and size of diagram symbols and lettering shall be sufficient to provide legibility to normal 20120 vision at a distance of two feet. Input and output terminals shall be plainly marked.
12、. An electrical schematic circuit shall be provided with each time delay. If 2.3 Electrical. 2.3.1 polantv. Time delay shall operate with a negatively grounded circuit. The voltage input shall be positive at terminal 1 and negative at terminai 6. 2.3.2 voltages from O to 50 volts dc with a maximum c
13、urrent flow of 5 milliamperes (mA). . Time delay shall be polarity protected to continuous reversed input 2.3.3 minimum resistance of 100 megohms at 85C and shall withstand 500 k 50 volts dc for 2 minutes without any evidence of physical or electrical damage. Measurements shall be made between the c
14、ase and terminals 1 through 9 tied together. . All insulation between ungrounded circuits and ground shall have a 2.3.4 dielectric strength after 1000 +O/-50 volts root-mean-square (vrms) at 60 Hertz (Hz) is applied between the case and terminals 1 through 9 tied together of the time delay. The dura
15、tion of this application shall not be less than three, nor more than five seconds. gth. There shall be no arcing, no physical damage, and no decrease in ated. Short circuit protection shall be provided. The 2.3.5 shart tir- time delay shall withstand a short circuited output while operating at 2 amp
16、ere output load within the functional operational range (16-35 volts dc). 2.3.6 Lowgeinput. Protection shall be provided against damage and malfunction from continuous input potentials below 16 volts dc with an output load of 2 amperes. 2.3.7 damage or malfunction with input potentials ranging from
17、16 to 35 volts dc and an output load of 2 amperes resistive. ge. Time delay shall be capable of continuous operation without 2.3.8 Transient . Time delay shall withstand 2000 transient cycles without damage or mal- function. Each cycle shall consist of a 50 volt square wave applied for 10 msec on an
18、d 750 msec off. 2.3.9 at 28 volts dc with a resistive load. . Time delay output contacts shall carry and switch a minimum of 2 amperes 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- A-A-52526 m 9999974 0368678 7T4 m A-A-52526 2.3.10 PowaA . Time
19、delay shall have a power drain of 2 watts maximum at 26 volts dc. 2.3.11 lL D = 6 mec; Vi = 3.0 meterlsecond. the center. The integration to determine the velocity change should extend from .4D before the puise to .ID beyond the pulse. The peak acceleration magnitude of the sawtooth pulse is P and i
20、ts duration is D. Any measured acceleration pulse which can be contained between the broken line boundaries is a nominal terminal-peak sawtooth pulse of nominal peak value, P, and nominal duration, D. The velocity-change associated with the measured acceleration pulse is V. . . 2. The oscillogram sh
21、ould include a time about 3D long with the pulse approximately in 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52526 2.5.5 Vibration * . Time delay shall evidence no breakage, loosened or distorted parts or other physical damage after enduri
22、ng a simple harmonic motion for 4 hours, applied along each of the three mutually perpendicular axes for a total of 12 hours under the following conditions: a. Vibration amplitude shall be 1.5 f .2 millimeters. b. Vibration frequency shall be varied logarithmically from 10 Hz to 2000 Hz and return t
23、o 10 Hz in 20 minutes. This frequency variation shall be repeated 12 times along each of the three mutually perpendicular axes. 2.5.6 Hmudig. Time delay shall show no change in physical, electrical, or material characteristics and shall meet the electrical and performance requirements after exposure
24、 to the humidity condensation cycle shown in figure 3. Distilled or demineralized water having a ph value of between 6.5 and 7.5 at 25C shall be used to obtain a 95% humidity. 2.5.7 Kat- . Time delay shall evidence no water penetration or damage that would impair performance after having been subjec
25、ted to 10.2 centimeters of rainfall per hour for 2 hours at a temperature between 20C to 30C. 2.5.8 -. Time delay shall show no change in physical, electrical, or material characteristics and no evidence of leakage current to ground or short circuits after exposure to blowing dust for a minimum of 2
26、4 hours under the following conditions: a. Air temperature shall be 23C and relative humidity shail be less than 30%. b. Dust shall be red china clay or silica flour and shall consist of particles small enough to pass through a 100 mesh screen. c. Blowing dust shall have an air velocity of 1.5 meter
27、/second and a concentration of 10.6 f 7 gram/cubic meter. d. Time delay shall be operated at 24 volts for the duration of exposure. 2.5.9 Corroston * . Time delay shall evidence no corrosion affecting performance and shall meet the electrical and performance requirements after being subjected to a 5
28、% sait spray in accordance with ASTM BI17 for 96 hours. 2.5.10 l3mg.u. Time delay shall evidence no microbial growth adversely affecting performance and shall meet the electrical and performance requirements after a 90 day exposure to a spore incubation. Time delays covered by this CID are sealed un
29、its and should not be operated during the exposure except possibly for final examination, and only if practical. 2.6 K&h. Time delay weight shall not exceed 85.0 grams. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52526 D 9999974 Olb8b81 299
30、 A-A-52526 . O 3 - 4 6 a 10 12 14 16 18 24 TIME. HOURS * - or until equipment stabilization (whichever is longer) NOTES: i. Humidity shall be 95 f 5% relative humidity throughout cycle except where otherwise noted. 2. A tolerance of + 1 “C shall be allowed at every point throughout the temperature c
31、ycle. FIGURE 3. Humid&pxndm&h cycle. 2.7 patihi&. Time delay shall cause no radio interference or electrical disturbance which produces an undesirable response or malfunctioning of communication equipment. . 2.8 Identificat -ng. Unless otherwise specified (see 6.2), identification marking shall be p
32、ermanent and legible and shall include, as a minimum, the manufacturers CAGE code and part number, and the part identification number (PIN) A52526-1. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52526 3. REGULATORY REQUIREMENTS. The offeror/
33、contractor is encouraged to use recovered materials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 4. QUALITY ASSURANCE PROVISIONS. . . The contractor is responsible for the performance of all 4.1 for inqxim inspections (examinatio
34、ns and tests). . 4.2 that the product offered meets the salient characteristics of this CID and that the product conforms to the producers own drawings, specifications, standards, and quality assurance practices, and is the same product offered for sale in the commercial marketplace. The Government
35、reserves the right to require proof of such conformance prior to the first delivery and thereafter as may be otherwise provided for under the provisions of the contract. 5. PACKAGING. . . The contractor shall certify and maintain substantiating evidence Preservation, packing, and marking shall be as
36、 specified in the contract or order (see 6.2). 6. NOTES. (This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.) 6.1 Non-hv- . Copies of ASTM B117 “Standard Practice for Operating Salt Spray (Fog) Testing Apparatus” are available from the Ame
37、rican Society for Testing and Materials (ASTM), 1916 Race Street, Philadelphia, PA 19103-1 187. 6.2 Orderinghia. Acquisition documents must specify the following: . a. b. C. d. e. Title, number, and date of this CID. Issue of Department of Defense Index of Specifications and Standards (DODISS) to be
38、 cited in the solicitation, and if required, the specific issue of individual documents referenced. PIN and quantity of time delay units required. If special marking is required. Applicable packaging requirements. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
39、 from IHS-,-,-A-A-52526 6.3 Cross-reference . Time delay units conforming to this CID are interchangeablehbstitutable with time delay units conforming to MIL-T-62063(AT), dated 4 May 1967. t 6.4 Becycle time. Recycle time is the time interval required to reactivate the circuit after actuating the input (see 2.4.4). MILITARY INTERESTS: Amy - AT view acW,gLy: DLA - ES CIVIL AGENCY COORDINATING ACTIVITY: GSA - FSS PREPARING ACTIVITY: Army - AT (Project 5945-0976) t 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
