Required controls and monitoring
The gas handling systems for both Focal Plane gas-filled detectors – the Ionization Chamber and the CRDCs – are remotely controlled via a single LabView application running on the computer S800FP-PC in the S3 vault. This computer can be accessed remotely from the desktop of computer u6pc5, by clicking in the icon S800 Vault PC, or by typing
xfreerdp /u:s800 /v:220.127.116.11 from a Linux terminal. A terminal will pop-up asking for the s800 password. Once the virtual session in S800FP-PC is open, the gas handling system can be opened by clicking in the corresponding icon on the desktop FPGHS_TCPIP-II. This icon opens the local directory
C:/Users/s800/Desktop/FPGHS_TCPIP-II. Once there, run the Labview executable FPGHS_TCPIP-II.exe.
Note that since the same roughing pump drives the gas handling systems for both gas-filled detectors, extra precautions must be taken to protect one detector from the pressure of the other detector. The fact that the same pump drives both systems is not indicated on the graphics for the LabView control application
To start the gas handling system control application, click on the LabView icon FPGHS_TCPIP_Corrected_V01 on the S800FP-PC desktop.
In order to track the status of the gas bottles for the ionization chamber, the CRDCs, and the TPPAC, it is possible to monitor their remaining pressures from Barney. Just open the A1900 page, then Tools, and then Gas Status. The following window will be displayed: