Basic On-Board Module Information
1-2
P/N 8040406
C
HELIX TECHNOLOGY CORPORATION
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TI
CRYOGENICS
Keypad/Display Control Description
The On-Board keypad/display, shown in Figure 1-1, provides a user
interface to the On-Board System for programming and operating all
On-Board Cryopump functions. Figure 1-1 shows the location of all
function keys and the alphanumeric display. The paragraphs that follow
explain the purpose of each keypad/display function.
Figure 1-1: On-Board Keypad/Display
Alphanumeric Display
The alphanumeric display shows up to 16 alphanumeric characters of data
entry. Messages longer than 16 characters can be viewed by using the
horizontal scroll display key.
Horizontal Scroll Display Keys
The horizontal scroll display keys move the message to the left or right on
the alphanumeric display when pressed. These keys are typically used to
display a message which is longer than the 16 character width of the
display.
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Clear
MONITOR
REGEN
SERVICE
CONTROL
RELAYS
HELP
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ON
-BOARD
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Enter
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Alphanumeric
Display
Horizontal Scroll
Display Keys
Vertical Scroll
Display Keys
Clear
Display Key
Numeric
Keypad
Enter
Command Key
Function
Keys
