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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"​        * Open the foreline valve **I260FV** using PanelMate box **Foreline vlve I260FV ** and clicking "​Open"​
-       * 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: 2019/07/01 09:46 by pereira