HELIX CTI-CRYOGENICS On-Board FastRegen Programming And Operation Instructions page 57

On-Board FastRegen Control Module Programming and Operation Instructions
Zero Cryo Thermocouple
First Stage Temperature Control
P/N 8040406
NOTE: The Zero Cryo Thermocouple parameter cannot be accessed
unless a password has been entered.
NOTE: The cryo thermocouple gauge must be turned ON and under a
vacuum of less than 10
be used. Any attempt to zero the gauge at a pressure above 30 microns, or
when the gauge is turned OFF, results in a calibration failure.
1. Press the SERVICE key on the keypad/display. The serial
number and software version information are displayed.
2. Press the Next key until the Password? prompt is displayed.
3. Enter the password and press Enter.
4. Press the Next key until Zero Cryo TC is displayed.
5. Press the Enter key. The cryo thermocouple pressure is displayed
until zero is reached. After approximately 1 minute, Complete will
be displayed.
6. Press the MONITOR key. The On-Board microprocessor will
monitor system operation.
NOTE: The First Stage Temperature Control parameter cannot be
accessed unless a password has been entered.
1. Press the SERVICE key on the keypad/display. The serial
number and software version information are displayed.
2. Press the Next key until the Password? prompt is displayed.
3. Enter the password and press Enter.
4. Press the Next key until 1ST TMP CTL is displayed.
5. Press the Enter key. Press 1 to turn on the first stage temperature
control. Press 0 to turn it OFF.
6. Press the Enter button.
7. Press the MONITOR key. The On-Board microprocessor will
monitor system operation.
-4 torr (less than 1 micron) before this procedure can
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C TI CRYOGENICS
HELIX TECHNOLOGY CORPORATION
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