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B163 upgrade - Review of instrumentaton and group responsibility
Minutes of the meeting on 28.11.2018
Participants
C. Barth, T. Barbe, J. Casas-Cubillos, A. Gharib, R. Denz, A. Lees, O. Pirotte, G. Riddone
TOPIC : Instrumentation for Fresca2
MSC instrumentation and responsibility – C. Barth
Christian started by presenting the group responsibilities. G. Riddone will provide the model for the pressure gauges (ACTION VSC). for the insulation vacuum. For the sample protection, the responsible group is TE-MPE.
The sample insert was presented as an example.
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TE-CRG: dedicated T sensor connectors are existing and they have to be implemented in the control system. Then there is an existing heater with a T sensor. Redundancy for the T sensor has to be foreseen. TE-MSC will supply one hardware interface to each sensor.
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TE-MSC: Dedicated protection connectors, sample voltage taps and sample heaters and Cernox are existing.
The instrumentation on the outer cryostat, inner cryostat sample and magnets has been also presented. The measurement and control software for the hardware will be modular. The last part of the presentation was focused on the control during operation for outer cryostat/magnets and inner cryostat/sample. For the different operation modes, the list of the systems checks has been given with the related actions.
For the cryostat system TE-MSC would like two OK/NOK (one slow and one fast) for outer cryostat and two OK/NOK for inner cryostat (one slow and one fast). After discussion, it has been decided that TE-CRG will supply only one cryo OK/NOK for outer cryostat and one for inner cryostat.
The list with the instrumentation for the magnets and samples will be provided by MSC (ACTION Ch. Barth).
The wiring of the temperature sensors in the current leads of the sample inserts will be standardized to 4-wire connection for each sensor without shared current lines (ACTION TE-MSC). The sensors will be integrated into the control system of TE-CRG as their readout is required for the cryogenic operation of the inner cryostat (needed for current lead flow rate calculation).
MPE instrumentation and responsibility – R. Denz
The interfaces between the MSC and MPE supply are clear. Details will have to be discussed (ACTION MSC-MPE).
CRG instrumentation and responsibility – A. Lees
MEYLSQLH0004 is the reference drawing for the CDS.
PIDs are also available for F1 and F2 (~ 0005 and ~0006).
A dedicated meeting was held on 28.11.2018 to discuss technical details between MSC and CRG. Andrew presented the part list for the instrumentation which will be attached to the EDMS document where the PID will be archived. This list includes all the instrumentation which appear in the PID. Some of the instrumentation are not CRG and the related line should be filled by MSC. CRG will organize the procurement for all the instrumentation which appear in the PIDs. For the rest MSC will be in charge of the procurement.
The interface for the feedthroughs has to be defined (ACTION MSC-CRG). As much as possible, the model of the feedthroughs has to be standardized (for the cryostat and for the magnet).
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