Tektronix Speclfication- 494A1494APService,Vot.1, Temperature Operatingand Humidity, Remarks

Speclfication- 494A1494APService,Vot.1

Table 2-7

ENVIRONMENTALCHARACTERISTICS

MeetsMIL T-28800C,typeclass 3, style C specifications.

CharacteristicDescr

Temperature Operatingand Humidity

Non-operating

Altitude

Operating

Non-operating

Humidity(non-operating)

-15oC to +55oC/95"/"(t 5o/"relativehumidity).

-62"C to +85 "C

15,000feet(testedto 25,000fee$ 40,000feet(testedto 50,000feet)

Five cycles (120 hours)in accordancewith MIL-Std-8l0 Procedurelll {modified)

Vibration(operating) (instrumentsecuredto a vibra. tionplatformduringtest)

MIL-Std-810D,Method 514, Procedure (modlfied).Resonantsearchesalongall threeaxes from 5 Hz to 15 Hz at 0 . 060 - inchdisplacemenltorT minutes,15 Hz to 25 Hz at 0.040-inchdisplacement for 3 minutes, and 25 Hz to 55 Hz at 0.020-inchdisplacementfor 5 minutes(testedto 0.025 inch).Additionaldwellfor 10 minutes in each axis at the frequencyof the major resonanceor at 55 Hz if none was found. Resonanceis defined as twice the input displacement. Total vibrationtime is approximately75 minutes.

Shock (operatingand non-operating) Three guillotine-typeshocks of 309, one-halfsine, 11 ms durationeach direction along each major axis for a total of 18 shocks (testedto 509).

Transit drop (free fall)	One 8-inch drop on each of six faces and eight corners (tested at and meets
	drop heightof 12 inches) .
Electromagneticlnterference(EMl) Meets requirementsdescribed in MIL-Std-461B, Part 4, except as noted.

			Remarks
ConductedEmissions	CE01- 60 Hz to 15 kHz		1 kHz to 15 kHz only
	CE03-15 kHzto 50 MHzpowerleads		15 kHz to 50 kHz, relaxedby 15 dB
ConductedSusceptibility	CS01-30	Hz to 50 kHz power leads	Fulltimit
	CS02-50	kHz to 400 MHz power F u l l l i m i t
	leads
	CS06-spike power leads		F u l l l i m i t
RadiatedEmissions	RE01*30	Hz to 50 kHz magneticfield Relaxed by 10 dB for fundamentalto
	(measuredat 30 cm)		1oth harmonic of power line
			Exceptioned,30 kHz to 36 kHz
	R E 0 2 - 1 4 k H z t o 1 0 G H z		F u l l l i m i t
RadiatedSuscepti	-30	Hz to 50 kHz	F u l l l i m i t
bility	RS01
	RS02- Magneticlndu6tion		To 5 A only
	R S 0 3 - 1 4	k H z t o 1 0 G H z	up to 1 GHz

aAfter storage at temperatures below -1soc,the instrument may not reset when power is first turned on. It this happens, allow the instrument to warm up {or at least 15 minutes, then turn the power off for 5 seconds and back on.

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