B&K 2250 Light Uživatelský manuál stáhnout pdf (Strana 138)

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Hand-held Analyzer Types 2250 and 2270 – User Manual

On the analyzer, Marker 1 is used as an Exclude Marker, while Markers 2 to 5 are used as

Event Markers. All four event markers can be user-defined. You can define a marker by

tapping on the Main Menu icon and selecting Setup, followed by Markers.

Marker 2 is set to a Manual Event marker by default – it can be controlled by the Manual

Event pushbutton and the stylus.

Marker 3 is set to a Level Event marker by default – it can be controlled by the level trigger

facility and the stylus.

Marker 6 is used as a Sound Marker and shows the size of the signal recording.

The analyzer allows you to view the markers at a later date by recalling the data and viewing

the desired profile. (This can also be done if you have transferred the data to BZ-5503).

If required, Measurement Partner Suite BZ-5503, Evaluator Type 7820 and Protector Type 7825

can use the markers in their calculations. Marker number 1 (the Exclude Marker) will always be

used as an Exclude Marker, while markers 2 to 5 will be used as defined in Type 7820

Evaluator/Type 7825 Protector software. The marker names, however, will be transferred from

the analyzer. Marker 6 will be used as sound marker.

Marking During the Measurement

The measurement parameter is displayed as a progressing profile.

Use of Pushbuttons

Press the Back-erase pushbutton to start an Exclude Marker (marker number 1). The

marker is displayed above the profile. Press the button once more to stop the Exclude Marker.

Press the Manual Event pushbutton to start a Manual Event Marker (marker number 2).

The marker is displayed above the profile. Press the button once more to stop the Manual Event

Marker.

Use of Stylus

Tap and hold the stylus on the profile display at the position where you want the marker to

start. This will freeze the display and show a cursor at the position of the stylus. Then drag the

stylus left or right to the position where you want the marker to end. This will display a second

cursor. Next, remove the stylus from the display and a drop-down menu appears showing the

five markers you have specified in the setup. Select the marker you require. The marker is

displayed above the profile, the cursors disappear and the profile unfreezes and progresses as it

did before you tapped on the screen.

Note: If you select Sound Marker, then the sound for this part will be recorded – see Chapter

12 for details.

Marking Measurement While it is Paused

The measurement parameter is displayed as a profile while the measurement is paused.

You can use the Stylus to Mark the Sound Categories

Tap and hold the stylus in the profile display at the position where you want the marker to start.

This will display a cursor at the position of the stylus. Then drag the stylus left or right to the

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B&K 2250 Light Uživatelský manuál Strana 138