1、/ Y MIL-T-22047 66 W 9979906 0130638 2 M MIL-T- 2204-7 (E? Or d ) 2 June 1959 SUPERSEDING NAVORD OS 5902A 24 May 1955 MILITARY S PFC IF ICAT ION TEST SET MARK 27 MOD i . I. Preproduction tests (b) Acceptance tests (c Periodic production $tests 4.3.1 PreDroduction and periodic DrDduction tests. - Pre
2、production and periodic produ.ction tests are those performed on samples submitted in .accordance with 4.1.2 and 4.1.3 to determine that the lot and production meet all the require- ments of this specification. Acceptable preproduction and periodic production sample units shall not be releasedfor se
3、rvice use and shall be stamped or marked as follows: “Sample- Not for Service Uset1. 6 G0 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-22047 bb W 7777706 0130644 m 4.3.2 AcceDtance tests. - Acceptance tests for accept- ance of the test set s
4、hall consist of tests to determine com- pliance with all requirements specified in this document with the exception of the environmental criteria. 4.4 Criteria for acceptance. 4.4.1 PrepFoduction tests. - Acceptance of preproduction sample shall be based on no defects in. the sample. 4.4.2 Acceptanc
5、e tests. - Failure of any test sCu bo pass the acceptance tests shall result in rejection of the test set. If the number of failing test sets exceeds the number permitted by the associated criteria, the lot represen- ted will be rejected. 4.4.3 Periodic production tests. - Acceptance of per- iodic p
6、rodxction caqles shall be based on no defects in the samnle. Failure of a periodic production sample to comply with the requirements of this specification will result in rejection of all test sets submitted subsequent to the last acceptable sample until remedial measures have been taken to correct t
7、he conditions causing failure. When the faults have been corrected., sampling for Deriodic production testing shall revert to the top of Table I under 4.1.3.1. The manu- facturer may resubmit. rejected lots, subsequent to the com- pletion of satisfactory correc.tive action as determined by the procu
8、ring activity. 4.5 Test equipment o 4.5,i Test and inspection eauipment and facilities. - Unless otherwise specified, the manufacturer shall furnish and maintain all necessary test equipment, facilities and personnel for performing all acceptance tests under the supervision of the Government inspect
9、or. The test equip- ment shall be adequate in quantity, and unless definite requirements are specified, they shall be of sufficient accuracy and quality to permit performance of the required acceptance tests . is as follows: 4.,5.1.1 Equipment required for performing these tests (a) d-c voltmeter, 0
10、-300 volt range, accuracy within t 1/2 percent. 7 , . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-s_ MIL-T-22047 bb-m 7777706 OL30b45 T JII L- T- 2 2 Urinp 10,CCO ohms (10K) within ari accuracy of i 1 percect, percent. (g) 50-3 volt variable d-c
11、voltage source. (h3 0-3 volt variable d-c voltage source. (i) 0-30 ampere variable 6-c currert source. 4.6 Acceptance tests. 4.6.1 Test conditions. - Unless otherwise specified, tests shall be performd at 80 I10F ar?_d ambient relative humidity. 4.6 02 Visual insDection. - The test set and its com-
12、r,onent parts shall be inspected to verify that the materials, design, construction, physical dimensions, soldering, and workmanship are in accordance with this document ai?d the draw- ings. 4.6.3 Neter, 300 volt range test. - To determine com- pliance with 3.2.1, conriect tke 0-300 volt d-c voltmet
13、er (test item 4.5.1.1 (a) together with the 50 to 300 volt d-c source (test item 4.5.1.1 (g) across the test set ter- .minais +3OOv and -. Set the CLRRENT-OPER-VOLTS switch (SW-1) on the VOLTS position and the 1-2 switch (SW-3) on 1. Adjust the variable voltage source so that the test set meter indi
14、- cates 100, 2C0, and 300 volts. Wher, compared with the read- ings of the external meter, the test set meter shall be accurate to within k6 volts. a 03 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-r11-22&7 ( N Or CI ) 4.6.4 Meter. 7 volt range te
15、st. - To determine compli- ance with 3.2.2 connect the 0-3 volt d-c voltmeter (test item 4.5.1.1 (bj) together with the 0-3 volt d-c source (test item 4.5.1.1 (h) across the test set terminals +3 volts and -. Set the CURRENT-OPER-VOLTS switch (SW-1) on the VOLTS position. Adjust the variable voltage
16、 source so that the test set meter indicates 1, 2, and 3 volts. bhen compared with the readings of the external meter, the test set meter shall be accurate to within &O-06 volts. 4.6.5 Meter. 30 amere range test. - To determine com- pliance with 3.2.3, set the CURRENT-OPER-VOLTS switch (SW-1) at CUR
17、REIIr. Connect the 0-30 ampere d-c source (test item 4.5.1.1 (i) and the 0-30 ampere d-c ammeter (test item 4.5.1.1 (c) in series between the test set terminals +3O AHPS and -. Adjust the variable current source so that tke test set meter indicates 10, 20, and 30 amperes. with the readings of the st
18、andard meter, the test set meter shall be accurate to within *0.6 amperes. 4.6.5 Exciter circuit test. - To determine compliance with 3.2.4, set the CURRENT-OBER-VOLTS switch (SW-1) on OPER. Set the 1-2 switch (SP-2) on 1. Set the 1-DUKMY-2 switch (SW-3) on 1. Connect the 0-150 milliammeter (test it
19、em 4.5.1.1 (a) across the test set EXC. COIL terminals. Deprkss SW-4 and adjust CURRENT ADJ. knob. so that the test set meter indicates 30, 60, 90, and 120 milliamperes. (Note: If ex- ternal .meter indicates negatively, reverse the leads). When compared with the readings of the external meter, the t
20、est set meter shall be accurate to within h3 milliamperes. Ad- just CURRENT ADJ. knob so that the test set meter indicates zero, and release SW-4. Set the 1-DUMMY-2 switch (SV-3) on 2. Reverse the external meter leads on EXC. COIL terminals. Depress SJ-4 and adjust CUMENT ADJ. knob so that the test
21、set meter indicates 150 milliamperes. shall also indicate i50 A3 milliamperes. When compared The standard meter 4.6.7 Dummy load test. - To deterni!.zx compliance with 3.2.5, set the CURRENT-OPER-VOLTS switch (SW-1) cn OPER. Set the 1-2 switch (SW-2) on 1. (SV-3) on either 1 or 2. Connect the excite
22、r coil to the test set. (R-5) so that the test set meter (M-1) indicates 120 milll- amperes. set meter when the 1-DUMMY-2 switch is in each of the 3 positions. The indication in each case shall be.120 *2 milli- amperes. Set the 1-DUM-2 switch Depress switch SW-4 and adjust the CURRENT ADJ. knob With
23、 the switch SW-4 depressed, observe the test 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-22&7 (Nord) 4.6.8 Load resistor test. - To determine compliance with 3.2.6, set the 1-2 switch (SV-2) at nosi-tion 2 an? the CURRENT-OPER-VOLTS switc
24、h at OPER. The resistance between test set terminals +3OOv and - shall be 10,000 hl00 ohms when measured with test item 4.5.1.1 (e. 4.6.9 Firing indicator circuit test. - To determine com- pliance with 3.2.7, the following test procedures are speci- f ied . 4.6.9.1 With the 1-2 switch (SW-2) set on
25、2 and the CURRENT- OPER-VOLTS switch (SY-1) set on OPER, the indicating lamp (M2) shall light and the meter needle shall give a negative kick and then a positive indication when the LAMP-DET switch (SW-5) is placed in the LAMP position. 4.6.9.2 With the 1-2 switch (S-2) set on 2, the CURRENT- OPER-V
26、OLTS switch (SW-1) set on OPER, and a voltage source of 3 volts (test item 4.5.1.1 (h) in series with the 2.6 ohm resistor (test item 4.5.1.1 (f), connected to the cable A-288, the indicating lamp (142) shall light and the meter needle shall give a negative kick and then a positive indica- tion when
27、 the LAMP-DET (SV-s) switch is placed in the DET position. The cable terminal C shall be connected to the positive terminal of the voltage source. 4.7 Environmental test. - Test sets subjected to the environmental condition given below shall be tested thereafter to determine compliance with all othe
28、r requirements of this specification. 4.7.1 Vibration. rigidly-mounted, test. - Mount the test set rigidly to a vibration table. component of the vibrationshall be simple harmonic motion. The sample shall be mounted on the vibration table so that equal quantities of test sets experience vibration pe
29、rpendicu- lar to thc rlarx? of mounting and vibration-parallel to the plane of mourLtirig. The units shall be vibrated through a range of freque1,cies from 700 to 3000 cycles per minute in 100 cycles per minriti increments. of each increment shall be one hour. The amplitude of the vibration shall be
30、 in accordance with the following schedule. The vertical displacement The duration of the vibration ,10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-220LI7 66 m 7777706 0130b48 5 m -. f MIL-T-2SCh-7 (N Or d ) FREQUENCY (Cycles per minute) 70
31、0 to i500 1600 to 2000 2100 to 2500 2600 to 3000 AMPLITUDE (Inches 1 0.030 f 0.002 0.020 f 0.002 O0013 f 00001 OoOO9 O.OO1 5. PREPARATION FOR DELIVERY NOTE: shall contact Bureau of Ordnance (MABlg) for special handling instructions). This equipment 5s very fragile, contractor 5.1 Preservation and pa
32、ckaging. 5.1.1 Level A. 5.1.1.1 Cleaning and drsing. - (Not applicaole). 5.1.1.2 Preservative aplication. - (Not applicable). 5.1.1.3 Unit DaCkaRinK. - Prior to unit packaging, %e$t set cables shall be packaged in accordance with Bureau of Ordnance List of Drawings LD 284866 and positioned in cable
33、well of test set. Each test set shall be initially packaged in a Style RSC fiberboard box fabricated from Classl, Type I or Type II board, having 275 lb. minimum bursting strength, conforming to the requirements of Federal Specification PPP- B-636. same box material, shall be utilized within the car
34、ton to pro- vide a tight pack and to prevent direct contact between pro- trusions of the test set case and the walls of the fiberboard 5.1.1.3.1 Each test set, prepared as specified above, shall The inner carton, Sufficient fillers and folded corner pads, of the box be further packaged Method II-b c
35、onforming to the require- ments of Military Specification MIL-P-116, containing the packaged test set, shall be inserted into a water-vaporproof bag, fabricated from Class 1 barrier-material conforming to requirements of Military Specification MIL-B- 131, and closure heat-sealed. 5.1.1.3.2 A Style R
36、SC fiberboard box, Class 2, W#c or WSs compliance symbol, conforming to the Pequirements of Federal Specification PPP-B-636, shall be employed for the outer carton and designed to snugly enclose the barrier-sealed inner container. The required desiccant shall be suitable positioned within the test s
37、et case. quired see Military Specif ic9tion MIL-D-3464, For conformance and quantity re- . 11 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- T- 2 2 &7 ( N or d ) 5.1 02 Level B. 5.1.2.1 Cleaning and dryinq. - (Not applicable). S.1.2.2 Preserv
38、ative application. - (Not applicable) . 5.l.2.3 Unit ackaninq. - Test set shall be prepared and packaged as specified under 5.1.1.3 . 5.1.2.j.l Each test set, prepared as specified above, shall be further packaged by Method IA-14, conforming to the require- ments of Military Specification MIL-P-116.
39、 The inner carton, containing the packaged test set, shall be inserted into a water-vaporproof bag, fabricated from Class I barrier material conforming to requirements of Military specification MIL-B- 131, and closure hest-sealed. S.1.2.3.2 A Style RSC fiberboard box, Class 2, WSc or WFs compliance
40、symbol, conforming to the requirements of Federal Specification PPP-B-636, shall be employed for the outer carton and designed to snugly enclose the barrier sealed inner container. The required desiccant shall be suitable posi- tioned within the test set case. 5.3.3 Level C. 5.l.3.l Test set units s
41、hall be packaged In a manner which will afford adequate protection from deterioration and physical damage during shipment from the contractor or supply source to the first receiving activity for immediate use. 5.2 Packing. 5.201 Level A. 5.2.1.1 Exterior containers. - Each test set, individually pac
42、kaged as specified under 5.l.l, shall be packed in an overseas type wood-cleated plywood box or a Class 2, Style 2, 2-1/2, 3 or 4 nailed wood box conforming to the requirements of Federal Specification PPP-B-601 or PPP-B-621, respectively. 5.2 02 Level B. 5.2.2.1 Exterior containers. - Each test spt
43、, individually packaged as specified in 5.1.1 shall be packed in a domestic wood cleated plywood box, or a Class 1, Style 2, 2-1/2, 3 or 4 nailed wood box conforming to the requirements of Federal Specifications PPP-B-601 .or PPP-B-621 , respectively. 12 Provided by IHSNot for ResaleNo reproduction
44、or networking permitted without license from IHS-,-,-. MIL-T-220q7 66 7797706 OL30b50 3 m- MIT!-T-22&7 (Nord) 5.203 Level C. 5.2.3.1 Exterior containers. - Each test set shall be packed in a manner which will provide protection from damage during direct shipment from the contractor or supply source
45、to the first receiving activity for immediate use. The type of containers used shall conform to applicable carrier rules and regulations, 5.3 Markine:. 5.331 Normal markings. - In addition to any special marking .required by the contract or order, all marking shall be in accordance with Military Sta
46、ndard MIL-STD-129. 5.3.1.1 For details on marking. requirements, see Bureau 5.3.1.2 Snecial markings. - The following special marking of Ordnance Drawing Number 1476194. shall appear on the top, one (1) side and one (1) end.of each shipping container: DELICATE INSTRUMENT HANDLE WITH. CARE. 6. NOTES.
47、 6.1 Orderinn data, - Procurement documents should specify the title, number and date of this specification, and exceptions to this specification, applicable drawings and other documents, Procurement documents should also specify the desired level of packaging and packing, packaging and .packing, sh
48、all be as follows: 6.2 Criteria f or us e of t3roDer level of meservatiou, For Level A. - This level shall be used for those items which are to be shipped to indeterminate destinations or stored under indeterminate conditions for redistribution anywhere For Level B, - This level shall be used only w
49、hen it is definitely known that the item will be held in covered storage in overseas locations for 6 months or less or in domestic locations for an indefinite period, is definitely known that .the packaged item is to be shipped to doenlestic installations for immediate use at the first receiving activity. -. For Level C, - This level shall be used only when it Provided by IHSNot for ResaleNo reproduction o
