ASTRO-MED Dash 8Xe Snelstarthandleiding - Pagina 14

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Engineering units provide the capability to display user-selected units instead of voltage. All signal information enters the

Dash 8Xe / Dash 8X as voltage. However, converting the voltage unit to an alternative unit of measure may be desirable

in applications that measure current, pressure, strain, or any non-voltage unit.

This allows the Dash 8Xe / Dash 8X to be compatible with transducers and probes that can provide a voltage output to

the Dash 8Xe / Dash 8X. The relationship between the voltage and the engineering unit is assumed to be linear,

characterized by a slope and offset (y = mx + b).

The following is an example of entering engineering units into the Dash 8Xe / Dash 8X. For this example, we will assume

we are entering the engineering units for a current probe that provides a 10mV/A voltage output to the Dash 8Xe / Dash

8X.

Dash 8Xe / Dash 8X Amplifier Channel Settings (Analog Channel Setup) Window

ACTION

Set the engineering

units on Channel #1 to

be 10mV/A

Open User Units Menu

Enable User Units

Enter User Unit

HOW TO

(Use the Menu Bar Pull-Down menus)

Choose Setup >> Amplifier Channel Settings (Analog Channel Setup) from the menu bar.

The Amplifier Channel Settings (Analog Channel Setup) menu will appear.

Highlight Waveform 1.

On the Amplifier Channel Settings (Analog Channel Setup)

window, Choose Units >> Enter User Units, the User Unit Setup –

Waveform 1 window will appear.

Select the Enable User Units icon located in the top center of the

User Unit Setup – Waveform 1 window. The Enable User Units

icon should be checked.

Select the Engineering Units box under the Enable User Units

icon. A keypad will appear. Erase the unit Volts and enter AMPS.

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