LN system

Access to the LN fill system from outside

To access the LN fill EPICS pages from outside, do the following

• ssh -X [email protected]

• ssh -X dgs@dgs1

• launch the LN EPICS control pages by typing 'lnmain'

If you do not have an account on sonata, the (green) gateway machine to onenet, you should talk to Ken Teh about getting an account on the machine

When do I have to reboot the lnfill IOC?

When there is a valve overtime, it is necessary to reboot the IOC for the alarm to the dialer to reengage.

If it is just a temperature alarm, it is not necessary to reboot the IOC

How do I fill one detector remotely?

locate the EPCICS control screen for the detector in question, then

• open the valve for tank you want to use
• and the associated exhaust valve for the line
• wait to the temperature at the exhaust valve to bottom out (meaning that there is now liquid there)
• put the exhaust valve back into 'auto mode' again
• open the valve to the detecor you want to fill
• wait for the temp at the detector return to bottom out (meaning that there is now liquid there)
• return the detector valve to 'auto mode'
• return the tank valve to 'auto mode'

what do I do about overtimes?

• clean bayonet
• check for leaks in line

when you have solved problem, do a manual fill and don't forget to reboot the IOC