Tektronix 371B, Руководство по обслуживанию

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Specifications
1-10
371B Service Manual
Table 1-6: CRT andĂ Readout (Cont.)
Characteristic Supplemental Information Performance Requirement
1 m A to 2 mA Staircase Current
β
or gm / div 5m to 500K for
β
.
2 m Simence to 2.5K Simence for gm.
Vertical Cursor 4Ćdigit Collector Current
(f :/ grad) readout by Dot or Window cursor;
4Ćdigit Vce / Ic or Ic / Vbe readout by fĆLine
cursor;
HORIZ Cursor
(f : intercept)
4Ćdigit Collector Volts or Step Generator Volts
readout by Dot or Window cursor;
4Ćdigit horizontal interception readout by
fĆLine cursor;
OFFSET 4Ćdigit Step Generator / Voltage offset
readout
%Of Collector Peak Volts 4Ćdigit Variable Collector Supply readout 0% to 100%
Table 1-7: PowerĂ Requirements
Characteristic Description
Power Connection This instrument is designed for operation from power source with its natural at or near ground
(earth) potential. It is not intended for two phase of multiĆphase system, or across legs of
singleĆphase, three wire system. It is provided with a threeĆwire power code with three
terminal polarized plug for connection to the power source. Third wire directly connected to
instrument frame, and is intended to ground the instrument to protect operating personnel, as
recommended by national and international safety codes.
Table 1-8: Power Ă Source
Characteristic Description
Line Voltage Range CAT II
Nominal Range Line Fuse Collector Fuse
240 V High 216 V to 250 V 250 V, 1 A, Slow 250 V, 2 A, Slow
200 V Low 180 V to 220 V 250 V, 1 A, Slow 250 V, 2 A, Slow
120 V High 108 V to 132 V 250 V, 2 A, Slow 250 V, 4 A, Slow
100 V Low 90 V to 110 V 250 V, 2 A, Slow 250 V, 4 A, Slow
Line Frequency 48.0 Hz to 63.0 Hz
Maximum Power Dissipation
(Fully Loaded)
400 W max.
Maximum line current is 4.5 Arms at 50 Hz, 90 V line, with 5 % clipping.