B&K 2250 Light Bedienungsanleitung PDF herunterladen (Seite 44)

Hand-held Analyzer 2250 Light – User Manual

4.4.4 On-screen Feedback and Traffic Light

Feedback is given on screen in the Status Field, see Fig.4.2, and the Traffic Light indicates

important states of the instrument, see Table 4.2

4.4.5 Use of Stylus and Navigation Pushbuttons

The stylus and navigation pushbuttons are used for setting up 2250 Light, navigating through

the screens and managing the results.

A number of items that appear on the screen (parameter values or icons) can be selected,

updated and activated. For instance, a new parameter value can be selected from a drop-down

list.

The selection and activation of items on the screen can be done in two ways:

• Tapping once on the item on the screen will select and activate it, or

• Moving the field selector around using the navigation keys until the item you want is

highlighted, then pressing the Accept pushbutton to activate it

You can choose to use the stylus or the pushbuttons, depending on your preference and the

measurement situation. For instance, if the amount of noise generated by the instrument needs

to be kept to an absolute minimum, consider using the pushbuttons rather than the stylus – this

is because tapping of the stylus on the touch-sensitive screen may create extra noise. However,

if speed is of major importance, the stylus can navigate through the setup and measurement

screens quicker.

Throughout the manual we have described how to perform the measurement procedures using

the stylus only, but you may also use the alternative method (using the Navigation and Accept

pushbuttons) if you prefer.

4.4.6 How to Change Parameter Values

Most parameter values are changed by selecting a new value from a drop-down list, which

appears when the parameter field is selected. See the example in Fig.4.3.

Table 4.2

Traffic Light Indica-

tions

State Light Scheme

During power-on or loading template Nothing

Stopped. Ready to measure Short yellow flash every 5 s

Awaiting trigger, searching for

calibration signal

Short green flash every second

Running measurement,

everything OK

Steady green light

Paused. Measurement not saved Slow yellow flash on 1/2 s, off

1/2 s

Overload Fast red flash

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B&K 2250 Light Bedienungsanleitung Seite 44