installation_fp_sci
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installation_fp_sci [2023/03/07 08:34] pereira [Pumpdown of FP Chamber] |
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. | ||
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| - 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), turn it off and close the foreline valve (FV) before doing step 6. | - If the TMP is still on (this could be the case for a short vent period), turn it off and close the foreline valve (FV) before doing step 6. | ||
| - 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” (~30,000 RPM), **Open** the TGV. | - 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” (~30,000 RPM), **Open** the TGV. | ||
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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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