1、AMSC N/A FSC 6645 INCH-POUND MIL-DTL-7793/7B 19 October 2012 SUPERSEDING MIL-M-7793/7A 15 September 1988 DETAIL SPECIFICATION SHEET METER, TIME TOTALIZING, MINIATURE, DIGITAL, 115 V, 60 Hz This specification is approved for use by all Departments and Agencies of the Department of Defense. Reactivate
2、d after 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. Meter configuration. 2.688 DIA 1.219 R 2.756Provided by IHSNot for ResaleNo reprodu
3、ction or networking permitted without license from IHS-,-,-MIL-DTL-7793/7B 2 REQUIREMENTS: 1. Dimensions. All dimensions are in inches. Unless otherwise specified, tolerances shall be: decimals .025, angles 1. 2. Mounting flanges. Mounting flanges shall be tin-plated on the front surface in accordan
4、ce with ASTM-B545 to provide an electrical ground for the case. 3. Life accuracy. Meter accuracy shall be 0.1 percent from -55 to 100 C and 102 to 128 VAC at 60 Hz. 4. Frequency rating. The meter shall operate satisfactorily and maintain the life accuracy limits as specified above over the frequency
5、 range of 50 to 70 Hz (see Note 2). 5. Meter flange. The meter flange, if a separate part from the enclosure, shall be fastened to the enclosure securely by screw, washer and nut. 6. Power consumption. Power consumption at 115 volts alternating current (VAC), 60 Hz shall not exceed 4.0W. 7. Operatin
6、g temperature range. The operating temperature range shall be from -55 to 100 C. 8. Time range. Total readout of the meters shall be 9999 hours. 9. Voltage range. The operating voltage shall be from 102 to 128 VAC. 10. Weight. Weight shall be not greater than 11 ounces with flange attached. 11. Diel
7、ectric 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 ambient temperature (approximately 25 C) and pressure. 12. Changes from previous issue. Marginal notations are not used in this revision to id
8、entify changes with respect to the previous issue due to the extent of the changes. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-7793/7B 3 NOTE: 1. M7793/7-001 supersedes MS17324-3. 2. Accuracy is degraded at the same percent as the percen
9、tage change in input frequency from 60 Hz, plus the specified accuracy tolerance. Referenced documents. In addition to MIL-DTL-7793, this specification sheet references ASTM-B545. Custodians: Preparing activity: Army - AR Navy - AS Navy - AS (Project 6645-2012-009) Air Force - 99 Review activity: DL
10、A GS1 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 Online database at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
