installation_fp_sci
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installation_fp_sci [2019/07/01 09:45] pereira [Pumping focal-plane chamber] |
installation_fp_sci [2019/07/01 09:46] pereira [Pumping focal-plane chamber] |
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| * When pressure in the chamber (from **I261PG**) gets below 90 mTorr (at least 45 min), **I260RV** will close. | * When pressure in the chamber (from **I261PG**) gets below 90 mTorr (at least 45 min), **I260RV** will close. | ||
| * Open the foreline valve **I260FV** using PanelMate box **Foreline vlve I260FV ** and clicking " | * Open the foreline valve **I260FV** using PanelMate box **Foreline vlve I260FV ** and clicking " | ||
| - | * When pressure in the foreline (**I260PG**) is below 200 mTorr, turn on the turbo pump. You will see the speed increasing in the PanelMate box "I260TP speed" | + | * When pressure in the foreline (**I260PG**) is below 200 mTorr, turn on the turbo pump. You will see the speed increasing in the PanelMate box **I260TP speed** |
| * It takes about 8 min to get the turbo pump "At Speed" (as read in box **Turbo pump focal plane detector I260TP**). During that time, the pressure in the focal-plane chamber will slowly increase (it is not being pump down) by few mTorr | * It takes about 8 min to get the turbo pump "At Speed" (as read in box **Turbo pump focal plane detector I260TP**). During that time, the pressure in the focal-plane chamber will slowly increase (it is not being pump down) by few mTorr | ||
| * When the turbo pump is "At Speed" and pressure in the chamber (as read in **I261PG**) is below 175 mTorr, the turbo-pump gate valve **I260GV** will open | * When the turbo pump is "At Speed" and pressure in the chamber (as read in **I261PG**) is below 175 mTorr, the turbo-pump gate valve **I260GV** will open | ||
installation_fp_sci.txt ยท Last modified: 2023/08/18 10:19 by noji
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