B&K 2250 Light Manual de usuario descargar pdf (Pagina 54)

Hand-held Analyzer Types 2250 and 2270 – User Manual

want the screen changes to be saved in the current template, tap the Project Template Bar at the

top of the screen to open the Template Explorer and tap the Save icon .

Note: If you make changes to the screen that you do not want to keep (and you have not yet

saved the template), you can undo them by selecting the template again from the Project

Template Bar at the top of the screen.

Shortcut Bar

The Shortcut Bar, at the bottom of the screen, displays a number of fixed icons that are always

accessible. These include:

• Main Menu icon , giving access to the Main Menu. This allows you to navigate to a

specific function, see description earlier under Navigation Principles

• Backlight icon , allows you to select a backlight level

• Help icon , a quick way to get context-sensitive help from any screen by tapping on the

icon at the bottom. Closing the help window will return you to the previous screen

• Battery/Power Status icon , shows the condition of the battery. All green shows a

fully charged battery, while red means power levels are low. Tap the icon to get more

details of the battery condition. (When the power supply lead is connected, the

icon will be displayed in place of the Battery/power Status icon .)

The clock in the lower right corner displays the current time. Tap the readout to get details of

the time and date, or to set the clock.

4.4.3 Use of Pushbuttons for Controlling Measurements

The design of the analyzer is such that the layout of the pushbuttons has been optimised for

single-handed operation.

Reset Measurement Pushbutton

Use the Reset pushbutton to reset a measurement, that is, to reset all detectors, averagers,

maximum and minimum hold, etc. If the measurement is paused (the Paused icon is

displayed in the Status Field), then the measurement reverts to a ‘stopped’ state after a reset,

(the Stopped icon

is displayed with a zeroed readout). If the measurement is running, then

the measurement will be automatically re-started after the reset.

Start/Pause Pushbutton

Use the Start/Pause pushbutton for controlling the measurement. The function of this key

depends on the current measurement state (Table 4.1).

Table 4.1

Start/Pause

pushbutton functions

Current

Measurement

State

Function of

Start/Pause Pushbutton

Next Measurement

State

Stopped Start the measurement Running

Running Pause the measurement Paused

Paused Continue the measurement Running

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 331 332

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