User Tools

Site Tools


installation_fp_sci

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Last revision Both sides next revision
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]
Line 66: Line 66:
        * 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: 2019/12/10 20:26 by pereira