Fluke 271 manual MODE=BEG-END LAW=LOG RAMP TIME=0.05 s TRIG SRC=CONTINUOUS MORE, Getting Started

Models: 271

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MODE=BEG-END LAW=LOG

Getting Started

Using the Instrument

At this point the lamp next to the SWEEP key should be flashing and the display should look like this:

MODE=BEG-END LAW=LOG

RAMP TIME=0.05 s

TRIG SRC=CONTINUOUS

MORE->>>

All these settings are fine except for the sweep time, which is too short if you are listening to the signal.

Change the sweep time to, say, 5 seconds. When you press the ENTER key the display will return to the main menu, so press EDIT and SWEEP again and use the FIELD key to move to the next screen.

MODE=BEG-END LAW=LOG

RAMP TIME=5.00 s

TRIG SRC=CONTINUOUS

MORE->>>

Now set the beginning and end frequencies. The frequencies shown here correspond to a sweep of 2 octaves starting at middle C, with a marker in the middle of the sweep.

BEG FRQ=261.6000 Hz

END FRQ=1.108700kHz

MARK FRQ=523.3000 Hz

MORE->>>

Now press the SWEEP key.

The sweep is generated continuously. You can reverse the direction on the first sweep edit menu by changing

MODE=BEG-END to MODE=END-BEG.

You can also set up to initiate the sweep manually - do this by changing TRIG SRC=CONTINUOUS to TRIG SRC=MAN/REMOTE. Single sweeps are now initiated by pressing the MAN/SYNC key.

Note that the settings for the internal trigger generator have no bearing on the sweep in this instance.

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Page 27
Image 27
Fluke 271 manual MODE=BEG-END LAW=LOG RAMP TIME=0.05 s TRIG SRC=CONTINUOUS MORE, Getting Started