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D-10

Appendix D - DT15 (Dual Trigger Option)

DT15 Overview

This module option allows the “Gate” input to function as a second trigger input.

For consistency, the enabling menu for this option is located under the “Trig”

menu structure. Once the dual trigger mode is enabled, both the “Gate” and

“Trig” inputs can act as trigger inputs.

Adjustments for the “Gate” trigger input are located under the “Gate” menu

structure. The voltage threshold level and trigger edge for the “Gate” input can be

adjusted from this menu. The “Gate” trigger edge choice is only available when in

dual trigger mode.

Once dual trigger functionality is enabled on the unit, each channel can be

as-signed to either of the trigger inputs. The default trigger source for each

channel is the “Trig” input. The trigger source selection is accessed in the

secondary channel menus. To access this menu, first press the yellow “Func”

button followed by the channel of interest. Continue to press “Func” then the

channel button until the menu page with “Ch Gate:” and “TrigSrc:” appears. Use

the “Next” button to place the cursor on the “TrigSrc” line and use the up/down

arrows to change to the desired trigger source.

DT15 Menus

Trigger 1 Menu (TRIG key)

Mode: Disabled

Mode:

Triggered

Mode: Dual Trig

Threshold Level

Threshold

Level

Trigger Edge

Enabling System Trigger

Enable the use of the TRIG input by the system timer as a trigger source.

Mode: Selects between disabling/enabling the trigger

mode(s).

Level: Sets the trigger threshold. Edge: Selects between

rising and falling edges as the trigger source when a

trigger mode is enabled.

Trigger 2 Menu (GATE key) *

Mode: Disabled

Mode:

Triggered

Mode: Dual Trig

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BNC 575 Series Spezifikationen Seite 51