4.1.1 Understanding Menu Navigation
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Chapter 4: Operation
4.1 General
This chapter provides operating instructions for the features of the Model 648 elec-
tromagnet power supply. Computer interface instructions are in Chapter 5.
4.1.1 Understanding
Menu Navigation
The menu navigation paragraphs provided at the end of each feature is intended to
be a quick guide through the necessary key presses to arrive at and set the desired
features. See FIGURE 4-1 and TABLE 4-1 for an explanation of the conventions used in
the menu navigation.
Menu navigation example
Max Settings
Maximum current ramp rate
(0.0001 A/s to 50.000 A/s)
A
B
E
D
C
Q
Q
Enter
Menu navigation key
Item
Convention
Explanation
A
Bold
Typically, the first word in the menu navigation is in bold type, which indicates the first
key you will need to press.
B
Q
The arrow indicates that the screen is advancing to the next screen. In the menu navi-
gation, the item that follows the arrow is the next item you would see on the screen or
the next action that you will need to perform.
C
ENTER
This symbol indicates that you will need to press
Enter
until you arrive at the desired
feature.
D
Italic type
The italic type indicate that there is a setting that needs to be selected.
E
(Parentheses)
The items that follow the italicized word and which are in parentheses, are the avail-
able selections to which you can set the desired feature.
4.2 Turning Power
On
Ensure the unit is configured for the appropriate AC line voltage. The instrument may
be damaged if it is turned on with the incorrect voltage selected. Instructions for
checking line voltage selection are given in section 3.4.1.
Be sure the unit is connected to an appropriate load before applying power.
The Model 648 will not turn on if an emergency stop switch is not connected or a jumper is
not put in its place on the Auxiliary connector at the rear of the unit. The unit will not turn
on if it is connected to a voltage source more than 10% greater than the voltage for which
it is configured.
The power
On
and
Off
buttons are located in the lower right corner of the front panel.
Press
On
to energize the Model 648. The Model 648 can be de-energized by pressing
Off
, by pressing an optional remote emergency stop button, or by the Model 648 soft-
ware when a hazardous fault condition is detected. The
On
and
Off
buttons are
shown in FIGURE 4-2.
FIGURE 4-1
TABLE 4-1
