installation_fp_sci
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installation_fp_sci [2023/02/13 12:05] noji Updated descriptions about the FP GHS based upon "S800 Focal Plane Gas Handling System Operation Manual" (v3) provided by Jorge to SN on 2/12/2023. |
installation_fp_sci [2023/05/08 16:39] noji |
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| - Click **Enable Controls** for the CRDC and IC Control Valve PIDs and then click **DISABLE** for each of them. This will open the control valve to 100% for each vessel and begin pumping them out. | - Click **Enable Controls** for the CRDC and IC Control Valve PIDs and then click **DISABLE** for each of them. This will open the control valve to 100% for each vessel and begin pumping them out. | ||
| - The IC vessel has a much larger quantity of gas compared to the CRDC vessel. In order to pump them out at a similar speed go to the “FP_State_Buttons” page and go to the D2708 (IC vessel) tab. Click **MAN** to enable manual mode. Click **OPN** for “S800_GHS: | - The IC vessel has a much larger quantity of gas compared to the CRDC vessel. In order to pump them out at a similar speed go to the “FP_State_Buttons” page and go to the D2708 (IC vessel) tab. Click **MAN** to enable manual mode. Click **OPN** for “S800_GHS: | ||
| - | - Open a data browser and plot the PVs for PT1 and PT2. | + | - Open a data browser and plot the PVs for PT1 (S800_GHS: |
| - Wait for PT1 and PT2 to read < 2 Torr. This should take about 30 minutes. | - Wait for PT1 and PT2 to read < 2 Torr. This should take about 30 minutes. | ||
| ===== Venting FP Chamber ===== | ===== Venting FP Chamber ===== | ||
| - Ensure the IG in the Focal Plane Pumping Station is off. This page can be found in FRIB EXP Main → S800 → Vacuum Main (Primary Pages) → Focal Plane. | - Ensure the IG in the Focal Plane Pumping Station is off. This page can be found in FRIB EXP Main → S800 → Vacuum Main (Primary Pages) → Focal Plane. | ||
| - | - Return to the “FP_State_Buttons” page and under the D2708 tab click **AUTO**. This will close all valves and allow the system to enter Vent mode. | + | - Return to the “FP_State_Buttons” page and for each of the D2708 and D2703 tabs click **PUMP**. |
| - | - Click **VENT**. This will expose the vessels to the Pumping Station. Observe the FPG on the “D2430 Pumping Station” page to ensure the Turbo Pump is not overloaded. | + | - Click **VENT** |
| - Once the FPG bottoms out, check the box next to “Valve Controls”, | - Once the FPG bottoms out, check the box next to “Valve Controls”, | ||
| - If the system will only be vented for a short time, leave the TMP on, otherwise turn it off. | - If the system will only be vented for a short time, leave the TMP on, otherwise turn it off. | ||
| - | - Plot PT1, PT2, and PT3 from the “GHS_FP_Main” page as well as BPG from the “D2430 Pumping Station” page on the same axis. | + | - Plot PT1 (S800_GHS: |
| - Briefly (~2 seconds) open the vent valve by clicking **Open** next to the valve labeled “Vent” then click **Close**. Check that all the pressures are increasing at the same rate. | - Briefly (~2 seconds) open the vent valve by clicking **Open** next to the valve labeled “Vent” then click **Close**. Check that all the pressures are increasing at the same rate. | ||
| - Again, open the vent valve and observe the pressure for 30 seconds to ensure the pressures are increasing at the same rate among all four gauges. If a difference of > 1 Torr is observed between any two gauges, click **Close** on the vent valve. | - Again, open the vent valve and observe the pressure for 30 seconds to ensure the pressures are increasing at the same rate among all four gauges. If a difference of > 1 Torr is observed between any two gauges, click **Close** on the vent valve. | ||
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| - Open “Focal Plane Pumping Station” page from FRIB EXP Main → S800 → Vacuum Main (Primary Pages). | - Open “Focal Plane Pumping Station” page from FRIB EXP Main → S800 → Vacuum Main (Primary Pages). | ||
| - Open “GHS_FP_Main” and “FP_State_Buttons” pages from FRIB EXP Main → S800 → GHS Pages (Secondary Pages). | - Open “GHS_FP_Main” and “FP_State_Buttons” pages from FRIB EXP Main → S800 → GHS Pages (Secondary Pages). | ||
| - | - Plot PT1, PT2, and PT3 from the “GHS_FP_Main” page as well as BPG from the “D2430 Pumping Station” page on the same axis. | + | - Plot PT1 (S800_GHS: |
| - On the “FP_State_Buttons” page change from “Vent” mode to “Pump” mode by clicking **PUMP** in both the D2703 and D2708 tabs. | - On the “FP_State_Buttons” page change from “Vent” mode to “Pump” mode by clicking **PUMP** in both the D2703 and D2708 tabs. | ||
| - Check the box next to “Valve Controls” on the “D2686 Pumping Station” page. | - Check the box next to “Valve Controls” on the “D2686 Pumping Station” page. | ||
| - | - If the TMP is off and Foreline Valve (FV) is closed, open the Roughing Valve (RV) briefly (2 seconds) by clicking **Open** and observe the behavior of the pressure gauges. If they all decrease at the same rate, again click **Open** to begin rouging | + | - If the TMP is off and Foreline Valve (FV) is closed, open the Roughing Valve (RV) briefly (2 seconds) by clicking **Open** and observe the behavior of the pressure gauges. If they all decrease at the same rate, again click **Open** to begin roughing |
| - | - If the TMP is still on (this could be the case for a short vent period), | + | - If the TMP is still on (this could be the case for a short vent period), |
| - | - When the BPG reads zero, **Close** RV and **Open** FV. Turn the TMP on if it is not already. When the TMP is “at speed” **Open** the TGV. If the TMP was off before | + | - When the BPG reads below 200 mTorr, **Close** RV and **Open** FV. Turn the TMP on if it is not already. When the TMP is “at speed” |
| + | - NOTE: before | ||
| - Allow the TMP to pump on the system until the IG reads < 1E-5 Torr. | - Allow the TMP to pump on the system until the IG reads < 1E-5 Torr. | ||
| - On the “FP_State_Buttons” page click **RUN** to enter run mode. | - On the “FP_State_Buttons” page click **RUN** to enter run mode. | ||
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| ===== Filling & Running FP Gaseous Detectors ===== | ===== Filling & Running FP Gaseous Detectors ===== | ||
| - | - Plot PT1, PT2, and the control valves for both D2703 (CRDC) and D2708 (IC). | + | - Plot PT1 (S800_GHS: |
| - Click **Enable Controls** for the CRDC and IC “Control Valve PID”s, then click **ENABLE** to turn on PID controls for each vessel. Each control valve should adjust to its BASE value. | - Click **Enable Controls** for the CRDC and IC “Control Valve PID”s, then click **ENABLE** to turn on PID controls for each vessel. Each control valve should adjust to its BASE value. | ||
| - If the CRDC valve remains completely open (stuck at 100%), open a probe with PV: “S800_GHS: | - If the CRDC valve remains completely open (stuck at 100%), open a probe with PV: “S800_GHS: | ||
installation_fp_sci.txt · Last modified: 2023/08/18 10:19 by noji
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