Fluke 271 manual Numeric, Units and SET Keys

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271

Getting Started Manual

Numeric, Units and SET Keys

You can use these keys to enter parameter values directly. For example, to set the period to 125 µs, select the first field (FREQ), change it to period (PER) by pressing a DIGIT key, then enter 1, 2, 5, us on

In addition, if the display is of any menu other than the main menu, the ESCAPE key will return you to the main menu.

the keypad.

shx0009f.gif

If the numeric value is dimensionless, for example a BURST COUNT, the ENTER key terminates the entry; otherwise it is terminated by the units key.

If you are editing one of the parameters in the main menu (frequency/period, amplitude, dc offset or symmetry) you can use one of the SET keys to navigate to the appropriate field directly.

shx0007f.gif

The CE key clears the entry, one key press at a time.

The ESCAPE key abandons the current editing action.

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Contents Getting Started Manual Programmable 10 MHz DDS Function GeneratorLIMITED WARRANTY AND LIMITATION OF LIABILITY To register your product online, visit register.fluke.comSafety Getting Started Manual Safety continued The following symbols are used on the instrument and in this manualTerminal connected to chassis ground Mains supply OFF Mains supply ON Alternating current Warning - hazardous voltages may be presentPage Emissions EMC ComplianceImmunity e EN61000-4-5 1995 Surge 0.5 kV line to line, 1 kV line to ground Table of Contents Titleviii AUX OUTGetting Started IntroductionBefore You Start Mains Supply VoltageExternally Applied Voltages Controls and Connections Getting StartedFigure 1. Model 271 Front Panel shx0001f.gifControls The Liquid Crystal DisplayFunction Keys FIELD and DIGIT Keys and the Rotary Control Numeric, Units and SET Keys MODE Keys UTILITIES KeysOUTPUT Key RECALL and REMOTEFront Panel Inputs and Outputs EXT TRIGMAIN OUT AUX OUTRear Panel Connectors CLOCK IN/OUTVCA IN SYNC OUTRS232 and GPIB Interface Connectors TRIG/SWEEP OUTUsing the Instrument Plug in and switch on the instrumentStarting up Check the LCD DisplayGenerating Continuous Signals Set a frequency, for example 12.5 kHzFREQ=12.50000kHz VhiZ=+20.0 Vpp 50Ω DC=+0.00mV +0.00mV SYM=50.0% 50.0%Set the amplitude to +10 dBm Have a look at some other waveformsChange the dc offset =80.00000usDC OFFSET CHANGE * * BY OUTPUT LEVEL Effect of the output attenuatorPER =80.00000us VhiZ=+4.00 Vpp 50Ω DC=+1.50 V +151.mV SYM=50.0% 50.0% Adjusting the phase SOURCE=EXT TGEN=1.00ms 1.000kHz BURST COUNT= PHASE=+000 +000SOURCE=EXT TGEN=1.00ms 1.000kHz BURST COUNT= PHASE=+116 +116 Asymmetric waveformsGenerating Swept Signals TRIG/SWEEP OUT signalMODE=BEG-END LAW=LOG RAMP TIME=5.00 s TRIG SRC=CONTINUOUS MORE MODE=BEG-END LAW=LOG RAMP TIME=0.05 s TRIG SRC=CONTINUOUS MOREBEG FRQ=261.6000 Hz END FRQ=1.108700kHz MARK FRQ=523.3000 Hz MORE SOURCE=EXT TGEN=1.00ms 1.000kHz BURST COUNT=0001 PHASE=+000 +000 PHASE=+000 +000Generating a Triggered Burst FREQ=2.000000kHz VhiZ=+20.0 Vpp 50Ω DC=+0.00mV +0.00mVFSK Mode Special WaveformsStaircases FREQ A=800.0000 Hz FREQ B=1.200000kHz SOURCE=TGEN FREEFigure 2. 625-line PAL TV Signal step namestart µs amplitudeVALS=ABS AUTO=YES STEP=01 ACTIVE LENGTH=0256 LEVEL=+000 VALS=ABS AUTO=YES STEP=08 ACTIVE LENGTH=0005 LEVEL=+153Saving and Recalling Settings Arbitrary WaveformsRECALL ARB No SINX/X ENTER TO EXECUTE RECALL ARB No ARB 03 IS EMPTYOther Functions and Waveforms