1、AMSC N/A FSC 6645 INCH-POUND MIL-DTL-7793/5B 19 October 2012 SUPERSEDING MIL-M-7793/5A 15 September 1988 DETAIL SPECIFICATION SHEET METER, TIME TOTALIZING, MINIATURE, DIGITAL, 28 VDC This specification is approved for use by all Departments and Agencies of the Department of Defense. Reactivated afte
2、r 19 October 2012 and may be used for new and existing designs and acquisitions. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-7793. FIGURE 1. M7793/5-001 (without flange). FIGURE 2. M7793/5-002 (without flange). .690 .650 2.082 1.9
3、60 2.082 1.960 .313 MAX .313 MAX .500 SQ .025 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-7793/5B 2 REQUIREMENTS: 1. Dimensions. All dimensions are in inches. Unless otherwise specified, tolerances shall be .015. 2. Part numbers. The part
4、 number shall designate a round or a square meter and the associated mounting flange to be supplied packaged together: Part Number Meter Shape Flange M7793/5-001 Round MS3345-1 M7793/5-002 Square MS3345-2 3. Life accuracy. Meter accuracy shall be 1.0 percent from 10 to 34 VDC -65 to 125 C. 4. Power
5、consumption. The average power consumption at 28 volts direct current (VDC) shall not exceed 1.0 W. 5. Operating temperature range. The operating temperature range shall be from -55 C to +100 C. 6. Time range. Total readout of the meters shall be 9999 hours. 7. Transient protection. No temporary or
6、permanent degradation shall be produced in the meter for the input voltage and time values shown on figure 3 herein (80V transients). 7.1 Transient generation. The meter shall not produce transients that exceed the limits on figure 3 herein (80 V transients). 8. Voltage range. The operating voltage
7、range shall be from 10 to 34 VDC. 9. Weight. The weight of the meter shall not exceed 2.0 ounces with the MS3345 flange attached. 10. Dielectric strength test voltages. The dielectric test voltages shall be 350 V root mean square (rms) at altitude specified in MIL-DTL-7793 and 600 V rms at room ambi
8、ent temperature (approximately +25 C) and pressure. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-7793/5B 3 FIGURE 3. Transient surge step function loci limits. Time (Seconds) DC Volts Provided by IHSNot for ResaleNo reproduction or network
9、ing permitted without license from IHS-,-,-MIL-DTL-7793/5B 4 NOTES: 1. M7793/5-001 supersedes MS17321-9. 2. M7793/5-002 supersedes MS17321-10. Referenced documents. In addition to MIL-DTL-7793, this specification sheet references MS3345. 11. Changes from previous issue. Marginal notations are not us
10、ed in this revision to identify changes with respect to the previous issue due to the extent of the changes. Custodians: Preparing activity: Army - AR Navy - AS Navy - AS (Project 6645-2012-007) Air Force - 99 Review activity: DLA - GS1 NOTE: The activities listed above were interested in this docum
11、ent 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 Online database at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
