Dual Reference Main Display - Ametek 7280 Instruction Manual

Chapter 5, FRONT PANEL OPERATION

5.5.02 Dual Reference Main Display

5-58
During dual reference mode operation, some of the control and display menus differ
from those used for single reference mode, so these are described in the following
sections. The remaining menus operate in the same way as in single reference mode,
as already described in section 5.3.
When the Configuration menu is displayed, pressing the Dual Reference key
activates the dual reference mode. While the instrument switches to this mode, the
Dual Reference Setup menu is displayed, as shown in figure 5-38.
Once dual reference has been activated, the Main Display - Dual reference Mode is
displayed, as shown in figure 5-39.
Figure 5-39, Main Display - Dual reference Mode
In dual reference mode, controls and displays relating to the external reference signal
carry the suffix "1" and those for the internal reference, the suffix "2". Hence, for
example, if an external reference frequency of 1 kHz is applied and the instrument's
Figure 5-38, Dual reference Setup Menu