Programming Auxiliary Thermocouple Pressure Limits; Cryopump - HELIX CTI-CRYOGENICS On-Board FastRegen Programming And Operation Instructions

Programming and Operation

Programming Auxiliary Thermocouple Pressure Limits

Cryopump

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limit (UL) value.
7. Using the keypad, enter the new upper limit value.
8. Press the Enter key. The limit values are programmed.
9. Press the MONITOR key. The On-Board microprocessor will
monitor system operation.
This procedure programs relay 1 or 2 to activate/deactivate when either of
the auxiliary thermocouple pressure limits are reached.
1. Press the RELAYS key on the keypad/display.
2. Press 1 or 2 depending upon which relay is being selected. The
selected relay number along with the ON/OFF and Auto/Manual
status are displayed.
3. Press the Next key until AUX TC appears in the display.
4. Press the Enter key. The cursor is placed under the current lower
limit (LL) value.
NOTE: If a number which is not in the proper range is entered, LL-???µ or
UL-???µ will be displayed. Press the Clear button to continue.
5. Using the keypad, enter the new lower limit value.
6. Press the Enter key. The cursor is placed under the current upper
limit (UL) value.
7. Using the keypad, enter the new upper limit value.
8. Press the Enter key. The limit values are programmed.
9. Press the MONITOR key. The On-Board microprocessor will
monitor system operation.
This procedure programs relay 1 or 2 to activate/deactivate when the
cryopump motor is turned ON or OFF.
1. Press the RELAYS key on the keypad/display.
2. Press 1 or 2 depending upon which relay is being selected. The
selected relay number along with the ON/OFF and Auto/Manual
status are displayed.
3. Press the Next key until CRYOPUMP appears in the display.
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C TI CRYOGENICS
HELIX TECHNOLOGY CORPORATION
P/N 8040406