Bedienungsanleitung Fluke 289 (Seite 24 von 88) (Englisch)

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Users Manual

VAC

REL

Peak, CF

Hz, %, mS

dBm

dBV

REL REL% Close

est05.eps

Figure 5. Function Menu

Menu selection is indicated by the filled-in black square

(hereafter the menu selector) to the left of a menu item. Use the

four front-panel cursor buttons (5 6 7 8) to position the menu

selector next to a menu item. As the menu selector moves

between menu items, the four softkeys and their labels change to

reflect the available functions and/or modes available for the

selection menu item.

The example menu in Figure 5 shows the REL (Relative)

function as the current selection. The function selected when the

menu opens is the function selected the last time the menu was

used. To get to the Hz menu item from the REL item, press 6

once, followed by one press of 7. As the menu selector moves

between the menu items, the softkey labels change to indicate

each softkey’s function. Once the desired function or mode

appears in one of the softkey labels, press the appropriate

softkey to activate it. The pop-up menu closes and the display

changes to reflect the selection just made. Pressing the softkey

labeled Close closes the pop-up menu, leaving the Meter in the

state it was in before pressing the Menu softkey.

In most cases, the softkeys revealed by the menu selection act

like toggles. The example menu shown in Figure 5 shows REL,

REL%, and Close softkeys. In this example, the Meter is not in

the relative mode, so pressing the softkey labeled REL would

activate, or toggle, the relative mode. If, on the other hand the

Meter is already in the relative mode, pressing the same softkey

would disable the relative function.

In some cases, pressing a function that can not be used with

other functions appearing in the menu turns off the previously

selected function. For example, in Figure 5, if the Meter is

already in the relative function, pressing REL% causes the Meter

to turn off relative and display relative percent.

In cases where multiple modes have been selected, selecting the

first (top-left) menu item always turns off all other functions and

modes, and returns the Meter to the primary function selected by

the rotary switch. For example, assume that the Meter is setup

for frequency (Hz) and is displaying in relative mode as selected

through the menu in Figure 5. Moving the menu selector to the

menu item labeled VAC and pressing the softkey labeled VAC,

clears both frequency and relative selections, leaving the Meter

in volts ac only.

Menu selections are remembered for each rotary switch position.

For example, selecting REL for the volts ac position causes REL

to be selected the next time the menu is opened in volts ac, even

though in the interim, Hz,%,ms was selected from a similar menu

for the millivolts ac function.

Up to two columns of four items each are displayed at any one

time. If more than eight menu items are available for a primary

function, g appears in the lower right-hand corner of the page

area of the display, indicating more menu items are available.

With the menu selector on one of the items in the left column,

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Fluke 289 Seite 24

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