Tektronix 2235A Instruction Manual page 19

Speclficatlons- 2235A Instruction
Table 1-2
Environmental Characteristics
Characteristics
I
Description
Environmental Requirements
Temperature
I
nonoperating test). Equipment shall remain off upon return to
Instrument meets or exceeds the environmental requirements
of MIL-T-28800D for Type Ill, Class 5, Style D equipment as
described below.
Operating
Nonoperating
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room ambient during step 6. Excessive condensation shall be
0°C to +50°C (+32"F to
+
122°F).
-40°C to
+
71 "C (-40°F to
+
1 60°F). Tested to MIL-T-28800D
paragraphs 4.5.5.1.3 and 4.5.5.1.4, except in 4.5.5.1.3 steps 4
and 5 (0°C operating test) are performed ahead of step 2 (-40°C
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removed before operating during step 7.
Altitude
Operating
To 4,570 m (15,000 ft). Maximum operating temperature
decreased 1 "C per 1,000 ft above 5,000 ft.
Nonoperating
Humidity (Operating and Nonoperating)
To 15,240 m (50,000 ft)
Exceeds requirements of MIL-T-28800D paragraph 4.5.5.2.
5 cycles (120 hours) referenced to MIL-T-28800D paragraph
4.5.5.1.2.2 for Type Ill, Class 5 instruments. Operating and non-
operating at 95%
+
0" to -5% relative humidity. Operating at
+
30°C and
+
50°C for all modes of operation. Non-operating at
+
30°C to
+
60°C.
Electrostatic Discharge
Radiated and Conducted Emission
Requirements Per VDE 0871
Withstands discharge of up to 20 kV. Test performed with probe
containing a 500 pF capacitor with 1 KR series resistance
charged to the test voltage.
Meets Class B.
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Conforms to Tektronix Standard 062-2862-00.
Vibration (Operating)
15 minutes along each of 3 major axis at a total displacement of
0.01 5 inch p-p (2.4 g's at 55Hz) with frequency varied from 10 Hz
to 55 Hz to 10 Hz in 1 -minute sweeps. Hold for 10 minutes at
55 Hz in each of the 3 major axis. All major resonances must be
above 55 Hz.
Bench Handling Test (cabinet on
and cabinet off)
Meets requirements of MIL-T-28800D, paragraph 4.5.5.4.1,
except limited to 30 g's.
Meets requirements of MIL-T-28800D, paragraph 4.5.5.3.1.
Each edge lifted four inches and allowed to free fall onto a solid
wooden bench surface.
Shock (Operating and Nan-operating)
Scans
by AR TEK MEDLA =>
Meets requirements of MIL-T-28800D, paragraph 4.5.5.4.3.
30 g's, half-sine, 11 -ms duration, 3 shocks per axis each direc-
tion, for a total of 18 shocks.