3 - 8

GETTING STARTED

Step 3 Press AUTOSET again. This time the scope performs the autoset in digital mode.

Step 4 Press the RUN/STOP key and observe that the trace is frozen and stays on screen even after removing the probe.

Step 5 Press the RUN/STOP key to display the actual input signal again. Reconnect the probe to display the Probe Adjust signal again.

Step 6 Press the ANALOG button once again to return to the analog mode. In the bottom of the screen, the text ’ANALOG MODE‘ is briefly displayed.

3.6 VERTICAL SETUP

This section deals with setting of the input circuits of the four channels. The main adjustments are AMPLitude, POSition, and the channel input coupling selection for GND, DC, and AC.

Figure 3.5

Vertical setup

Step 1 Adjust the absolute ground level by disconnecting the signal and using the POS control to position the trace in the middle of the screen. A marker with the channel number (’1-’) at the left of the screen indicates the ground reference.

POS

1

1

MAT4191

Step 2 Reconnect the probe to the Probe Adjust signal for display.

Page 30
Image 30
Fluke PM3370B user manual Vertical Setup, Reconnect the probe to the Probe Adjust signal for display