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 MS90386D 20 April 2009 SUPERSEDING MS90386C(AS) 7 October 1987 DETAIL SPECIFICATION INDICATOR, ELAPSED TIME, ELECTROCHEMICAL (MERCURY) 115 VOLT AC 50/2400 Hz, 28 VOLT DC OR 5 VOLT DC Inactive for new de
3、sign after 23 July 1997. 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.
4、The PIN is formed as follows: MS90386 - X Part description number per table I Specification number 1.2 H designation. Indicators with an H designation are for horizontal mounting. Unless otherwise specified, a citation to a dash number represents both non-H and H designated indicators. Provided by I
5、HSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS90386D 2 1.3 Substitutions. -1 through -12 indicators are replaceable by the equivalent -100 series indicator (i.e. a -1 indicator is replaceable by a -101 indicator). The units are mechanically, electrically and
6、dimensionally the same except for the mechanical and thermal shock limits as given in table I. 2 REQUIREMENTS 2.1 Dimensional. The indicator shall conform to the dimensions given in figures 1 through 5 as required. a. All dimensions are in inches. b. Tolerances, unless otherwise specified, are 0.015
7、 2.2 Weight. The indicator shall not exceed 0.1 ounce. 2.3 Time range. Total readout shall be in accordance with table I. The time scale shall be 0.650 inches long and have 20 equal divisions as shown in figure 1. 2.4 Operating temperature range. -20C to 85C. The indicator may also be used in equipm
8、ent with an operating range of -55C to 85C with accurate operation above -20C. 2.5 Storage temperature range. -80C to 85C. 2.6 Power consumption. Power consumption at the rated voltage per table I shall not exceed 50 milli-watts. 2.7 Life accuracy. Accuracy shall be 3% for -1 through -12 and 5% for
9、-101 through -112 from -20C to 85C over the following conditions: MS90386-1-3-5-7-101-103-105-107: 115Vac 13Vac, 50 HZ to 2400 Hz MS90373-2-4-6-8-102-104-106-108: 23Vdc to 29Vdc MS9.386-9-10-11-12-109-110-111-112: 4.95Vdc to 5.05Vdc 2.8 Color. The indicators shall be of the following colors: a. Face
10、plate - black b. Numerals - white on black background c. Scale - black on white background 2.9 Test terminal cap. The test terminal cap shall be made of polytetrafluroethylene (PTFE). 3 TESTS AND CHECKS 3.1 Mechanical shock. Indicators shall be tested in accordance with MIL-STD-202, Method 213. Test
11、 conditions shall be: a. -1 through -12 - condition A (50g, 11ms) b. -101 through -112 - condition C (100g, 6ms) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS90386D 3 3.2 Thermal shock. Indicators shall be tested in accordance with MIL-STD-202,
12、Method 107 for the following number of cycles: a. -1 through -12 - 5 cycles b. -101 through -112 - 10 cycles 3.3 Operational check. Each indicator shall have the following operational checks performed. 3.3.1 Indicating cell. At 25C and the indicator energized at its rated voltage, the voltage betwee
13、n the test terminal (center terminal) and the input/test terminal (terminal nearest “+” sign) shall be measured. The measured voltage shall be less than the “V Cell Maximum” as shown in table I. CAUTION: Do not short the test terminal to the input terminal. Accidental momentary grounding or the appl
14、ication of any potential to the test terminal may cause permanent damage. It is suggested that the PTFE test cap be left in place on the test terminal and that a small sharp probe be inserted through the end port of the cap. 3.3.2 Internal current source. With an external 100 ohm precision resistor
15、placed between the test and input/test terminals (in parallel with the indicating cell) and the indicator energized at its rated voltage, the voltage between the test terminal and input/test terminal shall be measured. The voltage shall be within the range of “V Reg 100 Ohms” as shown in table I. 4
16、IDENTIFICATION 4.1 Indicator. The indicator shall be marked with the following data on the outer surface: a. Manufacturers name b. Manufacturers model number c. Nominal voltage d. Nominal power (watts) e. PIN f. Coded date g. Polarity symbol (+) (dc indicators) 5 NOTES 5.1 There is no preferred moun
17、ting attitude. Indicator may be mounted on any axis and read directly without removal. 5.2 Indication of elapsed time, for vertical indicators, shall be read from the scale using the lower edge of the moving indicator gap. For horizontal indicators, the elapsed time is read from the left edge of the
18、 gap. 5.3 Voltage regulation for 28Vdc and 115Vac indicators is obtained by a regulator, self-contained in the indicator, which is frequency insensitive from 50 to 2,400 HZ. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS90386D 4 5.4 The 5Vdc indi
19、cators do not have an internal voltage regulator and must be used with precision logic power supplies. 5.5 In the event of conflict between this specification and the references cited herein, This specification shall take precedence. CHANGES FROM PREVIOUS ISSUE: No technical changes were made during
20、 this revision. Revision is to prepare a clean copy. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. TABLE I. Timer specifications. MS Dash Number V Reg 100 Ohms, Microvolts Vertical Horizontal Panel Mounting M
21、ethod Rated Voltage Hours Range V Cell Maximum Millivolts DC Min Max Shock Class (g) Thermal Shock (Cycles) -1 -1H Below 115 Vac 1000 10 358 442 50 5 -2 -2H Below 28 Vdc 1000 10 358 442 50 5 -3 -3H Above 115 Vac 1000 10 358 442 50 5 -4 -4H Above 28 Vdc 1000 10 358 442 50 5 -5 -5H Below 115 Vac 5000
22、10 71 89 50 5 -6 -6H Below 28 Vdc 5000 10 71 89 50 5 -7 -7H Above 115 Vac 5000 10 71 89 50 5 -8 -8H Above 28 Vdc 5000 10 71 89 50 5 -9 -9H Below 5 Vdc 1000 10 358 442 50 5 -10 -10H Above 5 Vdc 1000 10 358 442 50 5 -11 -11H Below 5 Vdc 5000 10 71 89 50 5 -12 -12H Above 5 Vdc 5000 10 71 89 50 5 -101 -
23、101H Below 115 Vac 1000 40 350 440 100 10 -102 -102H Below 28 Vdc 1000 40 350 440 100 10 -103 -103H Above 115 Vac 1000 40 350 440 100 10 -104 -104H Above 28 Vdc 1000 40 350 440 100 10 -105 -105H Below 115 Vac 5000 20 70 88 100 10 -106 -106H Below 28 Vdc 5000 20 70 88 100 10 -107 -107H Above 115 Vac
24、5000 20 70 88 100 10 -108 -108H Above 28 Vdc 5000 20 70 88 100 10 -109 -109H Below 5 Vdc 1000 40 350 440 100 10 -110 -110H Above 5 Vdc 1000 40 350 440 100 10 -111 -111H Below 5 Vdc 5000 20 70 88 100 10 -112 -112H Above 5 Vdc 5000 20 70 88 100 10 Provided by IHSNot for ResaleNo reproduction or networ
25、king permitted without license from IHS-,-,-MS90386D 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS90386D 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS90386D 7 Custodian: Preparing Activi
26、ty: Navy AS Air Force 71 DLA - GS1 (Project 6645-2009-003) 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-,-,-
