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User Manual 3155
The Trigger Panel
Trigger Parameters The Trigger Parameters group contains two parameters for each
The Trigger panel, as shown in Figure 3-8, is invoked either by
pressing the TRIG button on the Panels bar, or by clicking on one of
the Triggered, Gated, or Burst buttons on the Main Panel. Note that if
you invoke the Trigger Panel from the Panels menu, the 3155 does
not change its operating mode. If you select the Trigger option from
the Main Panel and invoke the Trigger Panel, the 3155 immediately
changes its operating mode to triggered mode. The functional groups
in the Trigger Panel are described below.
channel: Phase and Count. To access the required parameter, click
on the button below the Phase and Count indicators until the LED
next to the desired parameter turns on. The value associated with the
lit LED is displayed on the digital display. You can use the dial, key-
board, or the [↑] [↓} keys to adjust the readout to the required setting.
After you modify the reading, press Execute to update the 3155 with
the new reading.
Normal color of the digital reading is dark blue. If you
modify the reading, the color changes to a lighter shade
of blue, indicating that the 3155 has not been updated
yet with the new parameter. Pressing Execute will u p-
date the instrument and will restore the color of the digi-
tal readout to dark blue, indicating that the displayed
value is the same as the generator setting.
Also note that the digital readout has an autodetect
mechanism for the high and low limits. You cannot ex-
ceed the limits if you are using the dial but only if you
use the keypad. In case you do, the program will not let
you download an illegal parameter and you'll be re-
quested to correct your setting.
Note
ArbConnection 3-19
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