1、INCH-POUNDMIL-P-24212C(SH)AMENDMENT 221 April 1998MILITARY SPECIFICATIONPRESSURE TRANSDUCER EQUIPMENT (ELECTRICAL)This amendment forms a part of MIL-P-24212C(SH) dated24 May 1991, and is approved for use by the Naval Sea SystemsCommand, Department of the Navy, and is available for use byall Departme
2、nts and Agencies of the Department of Defense.PAGE 22.1.1, SPECIFICATIONS, FEDERAL, delete:“PPP-F-320 - Fiberboard, Corrugated and Solid, Sheet Stock(Container Grade), and Cut Shapes.”2.1.1, SPECIFICATIONS, MILITARY, delete:“MIL-E-17555 - Electronic and Electrical Equipment, Accessories,and Provisio
3、ned Items (Repair Parts): Packagingof.MIL-L-19140 - Lumber and Plywood, Fire Retardant Treated.”2.1.1, STANDARDS, MILITARY, delete:“MIL-STD-275 - Printed Wiring for Electronic Equipment.MIL-STD-454 - Standard General Requirements for ElectronicEquipment.”PAGE 53.4.1, delete and substitute:“3.4.1 Mat
4、erials. Transducer materials shall be in accordance withthe prohibited and galvanic corrosion material requirements of MIL-E-917 andMIL-P-24423.”PAGE 93.5.10.1, add to end of paragraph: “contacted by measurement fluidexcept for OX application (see 1.2.1.2) where all surfaces of the detectorshall be
5、cleaned.”AMSC N/A FSC 6685DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.1 of 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-24212C(SH)AMENDMENT 2 2PAGE 103.5.10.2(a), change to read “Detector for OX service
6、shall be clean gascalibrated, cleaned and pressure connection capped (sealed for shipment).3.5.12.1, line 2: Delete “microbrazed” and substitute “nicrobrazed.”line 3: Delete “microbrazing” and substitute “nicrobrazing.”3.5.12.2, delete and substitute:“3.5.12.2 Oxygen applications. Joints shall be we
7、lded for all pressureranges. MIL-STD-278, class P-1 shall apply.”PAGE 113.5.15, add:“(i) National Stock Number (NSN).”PAGE 123.6.5, delete “MIL-STD-275 and.”PAGE 143.7.19, delete and substitute:“3.7.19 Electromagnetic interference emission and susceptibility (EMI).The pressure transducers shall meet
8、 the following requirements of MIL-STD-461,table II, except as modified below:(a) Requirement CS114 shall be met as specified except asfollows:(1) At frequencies between 2 MHz and 30 MHz, the fulloutput of the generator (source impedance of 50 ohms,and an output capability of 12.25 volts rms, or 3wa
9、tts, when connected to a 50-ohm load) shall beapplied to all power and signal leads of the testsample.(2) The “calibrating resistor”, or 50-ohm load, asspecified in MIL-STD-462, shall not be connectedduring the test.(3) The test sample output shall not vary more than 1.0percent of transducer span.(b
10、) Requirement of RS103 shall be met as specified except asfollows:(1) Between the frequencies of 14 kHz and 18 GHz, theelectric field strength test level shall be 10 V/M.(c) Requirements CE101 and CE102 shall be met as specified exceptas follows:(1) The emission signal shall be measured only on ac p
11、owerleads of the test sample.”3.8: Delete paragraph.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-24212C(SH)AMENDMENT 2 3PAGE 17TABLE IV, delete and substitute:“TABLE IV. Quality conformance inspection.Inspection Requirement InspectionGeneral
12、 examination 3.4 4.6Output 3.4.4 4.8.20Static error band and repeatability 3.7.1 and 3.7.2 4.8.1Overpressure 3.7.12 4.8.12Insulation resistance 3.7.15 4.8.16”4.5, second and third lines: Delete “, from each lot offered fordelivery.”PAGE 184.5, fourth sentence: Delete “based on test results.”PAGE 224
13、8.11.4.1, line 1: Delete “Requirements of transducer.” and substitute“Requirements during temperature cycling.”4.8.11.5, line 2: Delete “4.8.11.3” and substitute “4.8.2.”PAGE 23TABLE VI, delete and substitute:“TABLE VI. Amplitudes of vibration.Table amplitude (inches)Frequency range Hz Exploratory
14、Variable frequency5 to 20 0.010 + 0.002 0.030 + 0.00621 to 50 0.004 + 0.001 0.020 + 0.00451 to 100 0.0015 + 0.0003 0.010 + 0.002101 to 175 0.0005 + 0.0001 0.0015 + 0.0003”PAGES 24 & 255. through 5.1(a)(2), delete and substitute:“5. PACKAGING5.1 Packaging. For acquisition purposes, the packaging requ
15、irementsshall be as specified in the contract or order (see 6.2). When actualpackaging of material is to be performed by DoD personnel, these personnelneed to contact the responsible packaging activity to ascertain requisitepackaging requirements. Packaging requirements are maintained by theInventor
16、y Control Points packaging activity with the Military Department orDefense Agency, or within the Military Departments System Command. Packagingdata retrieval is available from the managing Military Departments or DefenseAgencys automated packaging files, CD-ROM products, or by contacting theresponsi
17、ble packaging activity.”Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-24212C(SH)AMENDMENT 2 4PAGE 256.2(g): Delete line. Preparing activity:Navy - SH(Project 6685-0037)Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
