Extech Instruments 420 Specifications download pdf (Page 75)

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75

V5.1‐March2010

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MAINTIMEBASEMODE

The time base mode menu is explained as the following table.

Function menu Setting Explanation

Main Time Base Horizontal main time base

Zone Window Use the two cursors to define a zoom window area

Window Full-screen display

To zoom in on a small area of the display, perform the following steps:

1. Press MENU to view the function menu on the right side of the screen.

2. Press MENU ▲ or MENU ▼ to select the TIME MODE. Three (3) selectable options

will then appear at the bottom of the display.

3. Use the Soft-keys F1, F2, and F3 to select the Main Time Base, Zone Window, or

Window functions as described in the Table above.

4. Use the OPTION key and the◄

(yellow) and ► (yellow) keys to adjust and vary

the Time Base and size of the window zoom.

Refer to Figures 47 and 48.

Figure 47: Original Window Setting

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 108 109

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Extech Instruments 420 Specifications Page 75