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vacuum_controll

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vacuum_controll [2026/05/09 12:24] – [Depressurization Checklist] arivacuum_controll [2026/05/09 12:36] (current) – [Pressurization Checklist] ari
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 ===== Depressurization Checklist ===== ===== Depressurization Checklist =====
  
-1)      Ensure that cryocooler is off and cryostat is at room temps! +  - Ensure that cryocooler is off and cryostat is at room temps! 
-2) Turn on main power switch on HiCube Eco 80 +  - Turn on main power switch on HiCube Eco 80 
-3) Wait for DCU to complete self-test of system +  - Wait for DCU to complete self-test of system 
-4) Check if venting is off under parameter 012 “Enable vent” => off +  - Check if venting is off under parameter 012 “Enable vent” => off 
-5) Turn on roughing pump: Select parameter 010 “Pumping station” => on  +  - Turn on roughing pump: Select parameter 010 “Pumping station” => on  
-6) Once we reach pressures !!< 5 mbar!!, select parameter 023 “ motor pump” and turn on turbomolecular pump +  - Once we reach pressures !!< 5 mbar!!, select parameter 023 “ motor pump” and turn on turbomolecular pump 
-7)      Ideally, we want pressure to drop to lower 10^(-6) mbar range +  - Ideally, we want pressure to drop to lower 10^(-6) mbar range  
 + 
  
  
 ===== Pressurization Checklist ===== ===== Pressurization Checklist =====
  
-1)      Turn cryocooler off and wait for temperatures to reach ~ 280 K +  - Turn cryocooler off and wait for temperatures to reach ~ 280 K 
-2) Turn off Turbomolecular pump and wait for RPMs to go to zero +  - Turn off Turbomolecular pump and wait for RPMs to go to zero 
-3) Turn off roughing pump +  - Turn off roughing pump 
-4) Vent the system+  - Vent the system 
 + 
 ===== TPG 361 ===== ===== TPG 361 =====
 The pressure within the Cryostat is monitored with a **Single Gauge TPG361** from **Pfeiffer Vaccum**, which uses a PKR 251 FPM-sealed, DN 25 ISO-KF gauge sensor. The maximum pressure applies to inert gases and temperatures below 55 °C and is corrosion resistant. The TPG361 is designed for installation to a 19“ rack chassis adapter according to DIN 41494 and provides serial communication via R485 (24V, 5-pin circular), USB and Ethernet interfaces.It is used to measure the pressure inside the chamber. The pressure within the Cryostat is monitored with a **Single Gauge TPG361** from **Pfeiffer Vaccum**, which uses a PKR 251 FPM-sealed, DN 25 ISO-KF gauge sensor. The maximum pressure applies to inert gases and temperatures below 55 °C and is corrosion resistant. The TPG361 is designed for installation to a 19“ rack chassis adapter according to DIN 41494 and provides serial communication via R485 (24V, 5-pin circular), USB and Ethernet interfaces.It is used to measure the pressure inside the chamber.
vacuum_controll.1778322273.txt.gz · Last modified: by ari

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