5.2 Primary Operations
5.2.1 Turning on the System
Before starting the power up procedure, ensure that the power switches on the back of the system
control unit and compressor are toggled to OFF ( o ).
1. If a dry nitrogen source is connected to the system, verify the pressure is set to ~15 psi.
2. Turn on power to the compressor by toggling the power switch on the back of the unit ON ( | ).
3. Next, toggle the ENABLE switch on the front panel of the compressor to ON ( | ).
Wait approximately 20 seconds. The display on the front panel of the compressor indicates initiating
and self-test countdown
4. Turn on power to the vacuum control unit by toggling the power switch on the back of the unit
ON ( | ).
5. Turn on power to the system control unit by toggling the power switch on the back of the unit
ON ( | ).
6. Next, turn on the system control unit by pressing the power button on the front of the unit. This
power button will glow when the unit is on.
The software will initialize and run automatically. The UI will indicate the software is INITIALIZING
while the system checks for and establishes connection with the attached peripheral cards. After the
screen shows READY the system is ready for operation.
5.2.2 Controlling System Temperature
The PLATFORM temperature channel is used to drive control operations across the cryostat, compressor,
and vacuum control unit.
Cooling Down the System
1. In the UI for the CRYOSTATION instrument, navigate to the SAMPLE CHAMBER display screen and
select the PLATFORM temperature channel to bring up its operation controls.
2. In the PLATFORM TARGET input box, enter the target temperature value. To reach the lowest
possible base temperature, enter 0.0 K. Press SET to confirm.
3. Press the COOLDOWN command button. On the popup, confirm or adjust the custom parameters
for the cooldown, then press COOLDOWN again to start.
The cooldown cycle will begin.
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