Arbiter Systems 928A, Руководство пользователя, Страница: 107 / 120

Keypad Definitions
This appendix lists all of the keys on the Model 928A
keypad, for both the primary and secondary purposes.
For Primary keys, press only the key itself. For sec-
ondary keys, press
and then the key with blue
label above the key button of choice.
Primary Keys
. . . Numeric keys – including decimal
point; press to enter any necessary value during con-
figuration menus.
Secondary key – press to access any of the
blue secondary keys (located above the nomenclature
printed on the key itself).
Phase/Frequency key – press to view the
phase and frequency at channels A and B. Phase re-
quires two signals and frequency only one signal (fre-
quency channel is selectable).
Channel A/B ratio key – press to divide
channel A by channel B. Results are in Ohms, Mhos,
or unit-less (depending on input choice) and degrees.
Enter key – press to open a hidden menu, or
install a configuration value.