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vacuum_controll [2026/05/05 09:28] – simonvacuum_controll [2026/05/09 12:36] (current) – [Pressurization Checklist] ari
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 As a solenoid valve funtions the **0211** from Bürkert,  it is a normally closed device, meaning applying energy will open the device. If it's Powered on it connects the pump to the chamber. Furthermore, the vacuum pump and the solenoid valve are both controlled via the PDU, while the single gauge is controlled via a LabVIEW Script via the server. As a solenoid valve funtions the **0211** from Bürkert,  it is a normally closed device, meaning applying energy will open the device. If it's Powered on it connects the pump to the chamber. Furthermore, the vacuum pump and the solenoid valve are both controlled via the PDU, while the single gauge is controlled via a LabVIEW Script via the server.
  
-===== Starting Procedure =====+===== Depressurization Checklist ===== 
 + 
 +  - Ensure that cryocooler is off and cryostat is at room temps! 
 +  - Turn on main power switch on HiCube Eco 80 
 +  - Wait for DCU to complete self-test of system 
 +  - Check if venting is off under parameter 012 “Enable vent” => off 
 +  - Turn on roughing pump: Select parameter 010 “Pumping station” => on  
 +  - Once we reach pressures !!< 5 mbar!!, select parameter 023 “ motor pump” and turn on turbomolecular pump 
 +  - Ideally, we want pressure to drop to lower 10^(-6) mbar range  
 + 
 + 
 + 
 + 
 +===== Pressurization Checklist ===== 
 + 
 +  - Turn cryocooler off and wait for temperatures to reach ~ 280 K 
 +  - Turn off Turbomolecular pump and wait for RPMs to go to zero 
 +  - Turn off roughing pump 
 +  - Vent the system 
  
-First turn the vacuum pump on, and then make sure that the Turbomolacularpump is turned off. Only start the vacuum pump when you are sure that the Turbo is off, then start the compressor pump, when the pressure reaches the lower single digits (5 mbar >) turn the Turbomolacularpump on. 
 ===== 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.
   * Front panel Operation: {{ :setup:vacuum:manual_instructions_tpg361_tpg362_singlegauge_dualgauge_controller.pdf |Manual}}   * Front panel Operation: {{ :setup:vacuum:manual_instructions_tpg361_tpg362_singlegauge_dualgauge_controller.pdf |Manual}}
   * Supported Commands:{{ :setup:vacuum:pfeiffer_vacuum_tpg_361_tpg_362_manual.pdf | Communication protocol}}   * Supported Commands:{{ :setup:vacuum:pfeiffer_vacuum_tpg_361_tpg_362_manual.pdf | Communication protocol}}
 +  * Data Format: 1 start bit, 8 data bits, no parity bit, 1 stop bit, no hardware handshake 
  
 ^ Characteristic         ^ TPG 361                                                                             ^ ^ Characteristic         ^ TPG 361                                                                             ^
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 ===== Vacuum system configuration ===== ===== Vacuum system configuration =====
 The Pfeiffer Vacuum's HighCube 80eco consist of multiple subsystem, in the following table it is shown which setup uses what kind of subsystem: The Pfeiffer Vacuum's HighCube 80eco consist of multiple subsystem, in the following table it is shown which setup uses what kind of subsystem:
-^ Subsystem            ^  DAMIC-M@Zurich                      |^  DARMA                              || +^ Subsystem            ^  DAMIC-M@Zurich                                                                                                                                            ||^  DARMA                                                                                                                                                                                                           ||| 
-| :::                  | Name                 | Model Nr.      | Name                 | Model Nr.     | +|                      | Name                 | Model Nr.                | Manuals                                                                                                    | Name                 | Model Nr.     | Manuals                                                                                                                                                                     | 
-| Roughening Pump      | MVP 015-2            |  Not visible                                        ||| +| Roughening Pump      | MVP 015-2            |  Not visible             |  {{ :setup:vacuum:pfeiffer_mvp_015-2_ac_dc_diaphragm_vacuum_pumps_operating_instructions.pdf |MVP 015-2}}  |  Not visible                                                                                                                                                                                                     ||| 
-| Turbomulecular Pump  | High Pace 80         | PM P03 940A    | High Pace 80         | PM P03 940A   | +| Turbomolecular Pump  | High Pace 80         | PM P03 940A              |  {{ :setup:vacuum:pfeifferhi_pace80turbo_operatinginstructions.pdf |Operational Instructions}}             | High Pace 80         | PM P03 940A   |  {{ :setup:vacuum:pfeifferhi_pace80turbo_operatinginstructions.pdf |Operational Instructions}}                                                                              | 
-| Power Supply Unit    | TPS110               | PM 061 340-T   |                      |               | +| Power Supply Unit    | TPS110               | PM 061 340-T             |  {{ :setup:vacuum:tps110-400.pdf |TPS110 manual}}                                                          |  Not visible                                                                                                                                                                                                     ||| 
-| Control Unit         | TC110                | PM C01 790 A   | TC110                | PM C01 790 A  | +| Control Unit         | TC110                | PM C01 790 A             |  {{ :setup:vacuum:pfeiffer_tc_110_controller_1_.pdf |Operation Instructions}}                              | TC110                | PM C01 790 A  |  {{ :setup:vacuum:pfeiffer_tc_110_controller_1_.pdf |Operation Instructions}}                                                                                               | 
-| Venting Valve        |                      |                | Power Failure Vent   | PM Z01 330 A  | +| Venting Valve        |  Power Failure Vent  |  PM Z01 330 A            |  {{ :setup:vacuum:ideal_vacuum_vent_valve_users_manual_pm_z01_290_c.pdf |Vent Valve manual}}               | Power Failure Vent   | PM Z01 330 A  |  {{ :setup:vacuum:ideal_vacuum_vent_valve_users_manual_pm_z01_290_c.pdf |Vent Valve manual}}                                                                                | 
-| Cooling Fan          | Air cooling Kit 24V  | PM Z01 300 A   | Air cooling Kit 24V  | PM Z01 300 A  | +| Cooling Fan          | Air cooling Kit 24V  | PM Z01 300 A             |  {{ :setup:vacuum:pfeiffer_air_colling_pmz01300_manual.pdf |Air cooling manual}}                           | Air cooling Kit 24V  | PM Z01 300 A  |  {{ :setup:vacuum:pfeiffer_air_colling_pmz01300_manual.pdf |Air cooling manual}}                                                                                            | 
-| Front control Panel  | DCU002               | PM 061 348 AT  | DCU002               | PM 061 348-T  |+| Front control Panel  | DCU002               | PM 061 348 AT            |  {{ :setup:vacuum:dcu002_110_180_310_400_pt0250ben_e.pdf |DCU002}}                                         | DCU002               | PM 061 348-T  |  {{ :setup:vacuum:dcu002_110_180_310_400_pt0250ben_e.pdf |DCU002}}                                                                                                          | 
 +| Gauge                | TPG261               | TPG28030                 |  {{ :setup:vacuum:pfeiffer_single_gauge_tpg261.pdf |TPG261 Manual and Communication}}                      | TPG361               | PT G28 040    |  {{ :setup:vacuum:pfeiffer_vacuum_tpg_361_tpg_362_manual.pdf |TPG361 Communication Protocol}} {{ :setup:vacuum:manual_instructions_tpg361_tpg362_singlegauge_dualgauge_controller.pdf |manual}}  | 
 +| Vacuum Sensor        | PKR251               | 2000006133 / PT R26 000  |  {{ :setup:vacuum:manual_instructions_pkr251_pirani_cold_cathode_gauge.pdf |PKR251 manual}}                | PKR251               | PTR26000      |  {{ :setup:vacuum:manual_instructions_pkr251_pirani_cold_cathode_gauge.pdf |PKR251 manual}}                                                                                 |
  
vacuum_controll.1777966136.txt.gz · Last modified: by simon

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