Fluke PM3370B user manual MTB1.00ms Ch1

GETTING STARTED 3 - 21

Step 2 Press the DTB key. The DELAYED TIME BASE menu is now displayed on screen. Turn the delayed time base on with the first softkey.

		DELAYED
		TIME BASE
		DEL'D TB
		on off
		MAIN TB
		on off
		starts
		trig'd
		TRACE
		SEP	T
		MTB1.00ms	ch1
CH1	50mV	DTB 100μs 4.882ms
			ST6689

The upper trace is the main timebase trace. This first trace shows an intensified part. Adjust the TRACE INTENSITY with the control as necessary. The lower trace is the delayed timebase trace and is an expanded representation of the intensified part in the upper trace.

Step 3 Turn the DELAY knob to shift the intensified part and to select which part of the main timebase you want to magnify.

Step 4 The delayed timebase TIME/DIV keys are used to select the ’magnification factor’. Notice the changing delayed timebase ’TIME/ DIV’ readout at the bottom of the screen.

Step 5 The ’T’ symbol at the fourth blue softkey indicates that the cursor TRACK control can be used to make adjustments. In this menu the cursor TRACK control is used to change the TRACE SEParation, which is the distance between the main timebase and the delayed timebase.

The delayed timebase can be used in the triggered mode. The triggered mode is selected with the STARTS/TRIG’D softkey. The function of the triggered mode will be explained in Chapter 4. For this part of "Getting Started", remain in the STARTS mode.

Step 6 Switch the menu off with the TEXT OFF key. Notice that the delayed timebase is still active and that the most important functions (DELAY control and TIME/DIV key pair) still allow you to operate the delayed timebase.