Program Mode Keys
During normal operation, you can press the
3
,
6
,
9
, or
←
key to select their program mode (
Set
Points
,
Bake
,
High Voltage Operate
, and
TSP
, respectively). Press the
ESC
key anytime you
want to exit a program mode without saving changes, or press
ENTER
to save the changes.
3
6
9
High
Voltage
Operate
Bake
Set
Points
TSP
Mode
Select
Figure III-6. Program Mode Select keys.
Table III-2. Program Mode Select Keys.
Mode
Description
Press the
3
key
to select
Set
Points
With this key, you select several parameters — the set point number, what supply it should
monitor (whether it should monitor a bakeout), and the on/off pressure values. With each set
point parameter, if the set point has been used before, the present values are displayed.
The
section (page 22) following this table, provides detailed information on this
key.
Press the
6
key to
select
Bake
With this key, you can set up your bakeout, find out how long the heaters for a current
bakeout have been on, and disable a current bake.
The
section (page 23) following this table, provides detailed information on this key.
Press the
9
key to
select
High
Voltage Operate
This key turns high voltage to Supply 1 or Supply 2, ON or OFF using the
Display Select
key.
The
section (page 24) following this table, provides detailed
information on this key.
Press the
←
key to
select TSP
Press
←
to select
TSP
, following
this table,
provides detailed
information on this
key.
Use the
Menu
key to cycle through modes of operation and parameters.
Four modes of operation
:
TIMED sets the time between cycles, the number of cycles, and pressure above which the
TSP operates.
CONTINUOUS turns on the TSP and leaves it on, until you manually turn it off.
OFF turns off the TSP and disables all modes.
DEGAS is a maintenance tool. Use it to outgas your filaments if they are new or have
been brought up to atmosphere.
Five setup parameters
:
ACTIVE has two functions. As an information tool, the display indicates the filament
number and the total amount of logged time on that filament. As a setup tool for TIMED
and CONTINUOUS modes of operation, it allows you to select which filament you want to
use.
CLR FILMNT allows you to reset the logged time of all filaments to zero. You can do this if
you DEGAS or replace a filament. This command also resets ACTIVE to the number one
filament.
ON TIME allows you to specify the firing time of a filament for TIMED and DEGAS
operating modes.
SUB LEVEL allows you to select current or power control of the TSP and specify its value.
AUTO--ADVNC, if enabled, automatically switches to the next filament if an open one is
detected.
Digitel MPC Manual
Page 21 of 72
