American Magnetics 4Q12125PS-430 High Stability Integrated Power Supply System - Manual (Page 43)

Rev. 5 25
Operation
Default Display : Main
meaning of the ramping modes (Paused, Ramping Up, Ramping Down and
Holding).
3.2.4 Main Display
The default main display (the rightmost portion of the display – see Figure
3-1) shows either a voltmeter indicating magnet voltage or ramp mode and
persistent switch heater state. Ramp mode is displayed on the top line of
the main display; it will be one of eight states, as shown in Table 3-6 on
page 76. Persistent switch heater state is displayed on the bottom line of
the main display. If the Model 430 Programmer has been setup for use
with a persistent switch, it will indicate either ON or OFF for the
persistent switch heater state; otherwise, it will display “No PSwitch
Installed.”
3.3 Entering Numeric Values
A consistent method of entering values is used within menus requiring
numeric entries. Once a menu is selected, the user may start an entry by
pressing a digit ( 0 through 9 ), the decimal key ( . ), or the sign key ( +/- ). 1
The display will begin a new entry and display a cursor (_) as a prompt for
the next digit or decimal entry. Also, once entry is initiated, the display
will show an asterisk (*) indicating that numeric entry is active.
Alternately, the ENTER key may be pressed before any of the numeric
keypad keys; the display will begin a new entry and display a cursor (_) as
a prompt for the next digit or decimal entry, and the display will show an
1. Certain menu items requiring numeric data can also be entered using the fine
adjust knob (see section 3.4 on page 26).
Figure 3-2. Numeric Keypad and Associated Keys