COMPASS
Detector Gas Control System
(gas mixing area 888-R-028)
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COMPASSDetector Gas Control System(gas mixing area 888-R-028) |
We will have a new PLC (completely seperated from the old PLC) for the MM/DC, W45, MW1, MW2, (RichWall) gas systems. The new PLC will be installed beginning of April 2003. Estimated time needed for installation, connection of gas systems and testing is about one week. During this period none of the systems can be in operation! All groups involved should prepare for this!!!
Please check if the specifications meet your requirement!
| Detector / Gas System | Components currently controlled by existing PLC | Components planned to be controlled by new PLC | Components to be controlled / read out directly by DSC | Remarks |
| MM DC |
- | 6 flowmeter | - | |
| MWPC | 3 flowmeter, 1 pump | - | - | |
W45 |
- | 3 flowmeter, 1 pump | - | components are for a new W45 gas system (was up to now included in the MWPC gas system) |
| GEM | 2 flowmeter | - | 10 flow measurement device | measurement of return flow |
| Straws | 3 flowmeter | - | - | |
| MW1 | - | 2 flowmeter 1) | - | |
| RICH wall 2) | - | 2 flowmeter 2) | - | the RICH wall detector will probably be the same type as MW1, so a similar gas system will most likely be used |
| MW2 | - | 2 flowmeter | - | |
| RICH | 3 flowmeter, 2 electrovalves (?), 1 pump | - | 8 flow measurement device | measurement of return flow from the photon chambers |
1): to be confirmed (I simply assumed the actualy used components shell be controlled by the PLC)
2): design in progress
Please send corrections.