1、Comments, suggestions, or questions on this document should be addressed to Defense Supply Center Richmond, ATTN: DSCR-VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616 or e-mailed to STDZNMGTDLA.MIL. Since contact information can change, you may want to verify the currency of this address
2、information using the ASSIST database at http:/assist.daps.dla.mil. AMSC N/A FSC 6645 INCH-POUNDS MS90373B 20 April 2009 SUPERSEDING MS90373A(AS) 7 October 1987 DETAIL SPECIFICATION INDICATOR, ELAPSED TIME, ELECTROCHEMICAL (COPPER) 115V 50/2400 Hz AC OR 28V DC Inactive for new design after 23 July 1
3、997. This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this Military Specification Sheet and MIL-DTL-81219. 1 PART OR IDENTIFYING NUMBER (PIN) 1.1 PIN. The PIN is formed as
4、 follows: MS90373 - X Part description number per table I Specification number 1.2 Assemblies. Indicator assemblies are made of the following components: MS90373-1 - -3 indicating cell, -4 holder and -5 regulator MS90373-2 - -3 indicating cell, -4 holder and -6 regulator Provided by IHSNot for Resal
5、eNo reproduction or networking permitted without license from IHS-,-,-MS90373B 2 TABLE I. Part numbers and descriptions MS Part No. Description Hours Range -1 Indicator Assembly, 115 Vac (-3-4-5) 1000 -2 Indicator Assembly, 28 Vdc (-3-4-6) 1000 -3 Indicating Cell Only 1000 -4 Holder Only - -5 115 Va
6、c Regulator Only 1000 -6 28 Vdc Regulator Only 1000 2 REQUIREMENTS 2.1 Dimensional. The indicator shall conform to the dimensions given in figures 1 through 3. a. All dimensions are in inches. b. Tolerances, unless otherwise specified, are 0.015 2.2 Weight. The complete assembly (MS90373-1 or -2) sh
7、all not exceed 1 ounce. 2.3 Time range. Total readout shall be 1,000 hours. 2.4 Scale length. The scale length shall be 0.700 0.009 inches. 2.5 Indicating cell installation and retention. Indicting cell installation and retention shall meet the following requirements: a. The holder body shall be pol
8、arized to accept only the smaller indicating cell end. b. The holder cap shall hold the indicating cell captive when the cap is removed from the holder body. c. The holder cap shall not obscure the scale of the indicating cell. d. The indicating cell shall be removable from the holder cap without to
9、ols. 2.5 Operating temperature range. -20C to 85C. The indicator may also be used in equipment with an operating range of -55C to 85C with accurate operation above -20C. 2.6 Storage temperature range. -80C to 85C. 2.7 Power consumption. Power consumption at the rated voltage per table I shall not ex
10、ceed 0.1 watts. 2.8 Life accuracy. Accuracy shall be 5% from -20C to 85C over the following conditions: MS90373-1: 115Vac 13Vac, 50 HZ to 2400 Hz MS90373-2: 23Vdc to 29Vdc 2.9 Color. Regulator and holder shall be black with the word “TIMER” printed in white on the holder cap face. Provided by IHSNot
11、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS90373B 3 3 IDENTIFICATION 3.1 Regulator. The regulator shall be marked with the following data on the outer surface: a. Manufacturers name or symbol (optional) b. Manufacturers model number c. Nominal voltage d. Nomina
12、l power (watts) e. PIN (MS90373-5 or MS90373-6) f. Polarity symbol (+) g. Coded date 3.2 Indicating cell. The indicating cell shall be marked with the following data: a. Manufacturers name b. MS number (MS90373-3) 3.3 Holder. The holder shall be marked with the following data on the outer surface: a
13、. MS number (MS90373-4) 4 NOTES 4.1 The length of the copper column relative to the graduated time scale of the indicating cell indicates the total elapsed time (i.e. the indicator is read in a manner similar to a liquid thermometer). 4.2 When the indicator is mounted in other than a horizontal posi
14、tion, the holder cap must be in the up position. 4.3 The regulator (MS90373-5 or -6) may be mounted by means of standard capacitor brackets. 4.4 The holder cap may be attached by threads, 1/4 turn fastener, friction fit or any other suitable means that assures positive retention. The cap may be smal
15、ler than the holder body. 4.5 If a gasket is used, it may be of a diameter up to 0.781. 4.6 In the event of conflict between this specification and the references cited herein, This specification shall take precedence. CHANGES FROM PREVIOUS ISSUE: Marginal notations are not used in this revision to
16、identify changes with respect to the previous issue due to the extent of the changes. Technical changes are revisions to dimensions that were missing, unclear or inaccurate in the previous issue. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS9037
17、3B 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS90373B 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS90373B 6 Custodian: Preparing Activity: Navy AS Air Force 71 DLA - GS1 (Project 6645-2
18、009-002) NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST database at http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
