Programming and Operation
3-52
P/N 8040406
C
HELIX TECHNOLOGY CORPORATION
-
TI
CRYOGENICS
Rough Valve Open/Closed
1. Press the CONTROL key on the keypad/display. The ON/OFF
status and the second stage temperature of the cryopump are
displayed.
2. Press the Next key until the current rough valve status is displayed.
3. Press 1 to open the rough valve, or press 0 to close the rough valve.
4. Press the MONITOR key. The On-Board microprocessor will
monitor system operation.
Purge Valve Open/Closed
1. Press the CONTROL key on the keypad/display. The ON/OFF
status and the second stage temperature of the cryopump are
displayed.
2. Press the Next key until the current purge valve status is displayed.
3. Press 1 to open the purge valve, or press 0 to close the purge valve.
4. Press the MONITOR key. The On-Board microprocessor will
monitor system operation.
Relay 1 ON/OFF and Auto/Manual Control
1. Press the CONTROL key on the keypad/display. The ON/OFF
status and the second stage temperature of the cryopump are
displayed.
2. Press the Next key until the current status and mode for relay 1 are
displayed.
3. Press one of the following number keys for the desired relay
activity:
1 to turn relay 1 ON
0 to turn relay 1 OFF
7 to turn automatic mode ON
9 to turn manual mode ON
4. Press the MONITOR key. The On-Board microprocessor will
monitor system operation.