ASTRO-MED Dash 16u Manuale di avvio rapido - Pagina 10

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Input battery voltage into Channel #1

Stop the paper

III. Data Review

DISCUSSION

ACTION

Enter screen preview

Toggle [TIME CURSOR]

button and move cursors near

the trigger point (dotted line)

Expand view around trigger

Expand the view further

Print the screen

Play back to paper

A trigger should be produced and the capture continues to the end. While

capturing, you should have seen the waveform for Channel #1 increase from the

bottom of the channel to near the top on both the color display and the chart.

Note: you do not need to run the chart when you capture data.

[RUN / HALT]

Data capture records can be reviewed on the color display as well as on the

chart paper. Typically, the review is done on the display and then sections of

interest are printed on the paper. During review, the timebase can be expanded

or compressed to give appropriate detail of the signal.

HOW TO

[MODE] [DATA RECORD REVIEW] [SCREEN PREVIEW]

[TIME CURSOR A] Turn encoder wheel so A cursor is positioned just to

the left of the trigger point (dotted yellow line on the display).

[TIME CURSOR B] Turn encoder wheel so B cursor is positioned just to

the right of the trigger point (dotted yellow line on the display).

[PREVIEW SETTINGS] [SET WINDOW TO CURSORS]

[TIME CURSOR A] Turn encoder wheel so A cursor is placed just to the left of

the trigger point. [t - EXPAND ABOUT (A)] The expansion is around where

the cursor A is set.

[OUTPUT ...] Use encoder wheel to select screen print to paper.

[NEXT >>] [NEXT >>]

[EXIT PREVIEW] [SETUP PLAYBACK] [SET PLAYBACK FORMAT]

Verify format to be Y-T Chart #1.

[SET PLAYBACK WINDOW] [CHANGE METHOD] Turn encoder wheel

to select the method to show: Preset - Rregion of capture window.

[SET START POINT] Turn encoder wheel to 0%.

[SET END POINT] Turn encoder wheel to 20%. [EXIT]

[SET EXPANSION] Set t-expansion:

compress the timebase for data playback to the chart. For long data records, it

is suggested to use maximum compression for the first playback to conserve chart

paper. Then, expand the playback to get the detail you need. As you change the

starting and ending points from 100%, you can expand the playback timebase.

[HEADER] Verify the Header is toggled ON.

[TRIGGER MARK] Verify the Trigger Mark is toggled ON. [EXIT]

[BEGIN PLAYBACK]

1. Note that you can expand or