Tektronix 494AP service manual O a o o, Line

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Specification - 494A1494ApService, Vol. 1

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Characteristic

Sweep Modes

Sweep Time

Accuracy

Triggering

InternalTrigger Level

ExternalTriggerInputLevel

Crt Readout

Battery-PoweredMemory

BatteryLife

At +55"C Ambient Tempera- ture

At +25"C AmbientTempera- ture

Temperature Range for RetainingData

Operating

Non-Operating

MarkerTimeMeasurement Accuracy(inzerospanmode)

Characteristic

Line VoltageRange

Line Fuse

1 1 5V N o m i n a l

230V Nominat

InputPower

LeakageCurrent

4 7 H z - 6 3 H z

63 Hz - 440 Hz

Tabte 2-5

GENERALCHARACTERISTICS

Performance Requirement

	'l
20 ps/Div-Ss/Div in -2-5 sequence
s/Div	avaitablein AUTO)
!],,.9

*57o overcenterI divisions

2 divisionsor more of signal

1.0V peak,minimum

Table 2-6

POWERREOUIREMENTS

90V . ^ to 132 V

180V,^to 250V

210W maximum(3.2A)

Information

Triggered,auto, manual, external, andsinglesweep

lNTernal,EXTernal,FREERUN.and

LINE

EXTernal is ac-coupled (15 Hz-1MHz). Maximum external trigger

inputis 50V (dc+ peakac).

Displaysall parameterslistedon the crt bezel, plus help and operating rnessages.

lnstrument settings, macros (pro- grammableinstrumentonly)displays, calibration offsets, and peaking codes for each band are storedin battery-powered,non-volatileRAM.

1-2 years

(See Option 39 in the Options sec- tion for alternatespecification)

least5

-15"C to +55oC

-30"Cto +85"C

*.10"h for single marker and isyo for delta marker

Marker time available only in zero span

SupplemenlalInformation 47 lo 440 Hz

11 5 V n o m i n a l 230 V nominal

4 A

2A Medium - Blow A t 1 1 5V a n d 6 0 H z

3.5 mA maximum

5mA maximum

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