Post on behalf of Harald Sinn:

 for the non-vacuum part of WP73 we have the following situation: 

 Post on behalf of Alessandro Silenzi:

Master Component list is being updated.

https://docs.xfel.eu/share/proxy/alfresco/api/node/content/workspace/SpacesStore/1c6c10cd-d741-410d-bd05-bb00944514dc/MasterEquipmentList.xlsx?a=true

Best regards

Alessandro

Post on behalf of S. Brockhauser

 Since I am in Grenoble and visiting ESRF, I will not be able to give you the report in person. Instead Alessandro can give you a Summary.

In fact:
- we did collect the full list of the Karabo names for all the equipments involved
- we have started our sprint and we are on track
As next things:
- we are collecting all the required Karabo(!) default parameters
- we plan to finish the sprint as planned and presented last time.
Until now we have not experienced and obstacle.

Best wishes
Sandor

This is the current (w5) progress at DESY concerning the analysis of the serious XGM resistor issue (summary; a detailed report by DESY is available):

• The new “pulser test” was verified at an operational XGMD at FLASH. The test method is (unfortuately) OK. This means that the test results with issues from last week on all our XGMs are REAL.
• 25% of all resistors in XBPMs affected, 0% of resistors in HAMPs affected, no capacitors affected.
• Since no HAMP resistors are damaged, damage by environmental conditions (venting, humidity etc.) can be excluded. The main differences to the affected resistors are the HV-conditioning and the experienced HV-values of the resistors (typically XBPM resisotors are tested up to 12kV, HAMP resistors each see much lower voltages).

• An XGMD chamber at FLASH was tested-to-destruction-of-resistor by applying a large differential voltage (>3kV) between neighboring electrodes, e.g. on mesh_e and FC_e. These resistors (Caddock MS220) have a nominal voltage breakthrough rating of ~500V but never had issues. They are used in all our XGMs.
• New, other resistors (Ohmite MOX-1N-13) with higher voltage breakthrough rating of 10kV were procured and arrived tuesday
• The new resistors were built into the tested-to-destruction XGMD at FLASH, unit is now pumping, will be retested with applying pulsed HV (on both Caddoc and Ohmite resistors) when at suitable pressure.

Further plan (w5end + w6) concerning the XGM resistor issue:

• If the new resistors survive the test, then next monday the XGM01 at HERA-S will be opened, the tested-defect resistors will be checked and replaced with the new resistors.
• If all tests on XGM01 are then ok including an acceptable RGA, all other XGMs (XBPM chambers) will be opened and resistors exchanged. Even ok-tested resitors would be exchanged to avoid future unexpected failures. HAMP chamber resistors will not be exchanged (large number >20 of resistors, no failures).
• If the RGA is not acceptable, the resistor Ohmite MOX-1N-16 is another alternative, but has increased delivery time.

 Updates as of 2 Feb 16:30

Presentation for SASE1readiness-Meeting

on XGM resistor issue progress (w5) and plan (w6)

 Please check if correct. I mark all newly done things in yellow!

Post on behalf of R. Villanueva

please find attached the updated status of the Differential Pumping
Modules in SASE 1. Just a few comments.

1. As you can imagine, no progress after KW4 in XTD2: system is ready to
deploy Karabo.
2. In XTD9, we have been pushing forward to finish the local test with AE.
Right now, everything has passed the local test except 3 vacuum gauges
that will be rechecked after the meeting. The main reasons for the little
progress (84%----->87%) are:

  a) more problems than expected with the cabling.
  b) a faulty Beckhoff Terminal.
  c) prioritization of  manpower (AE and VG) in other devices in the
tunnel.
  d)....the usual "sigmoidal" behavior of this kind of process.... ;)

3. In any case we aim to leave the system ready tomorrow so next week the
interlock code can be deployed safely.


Have a nice evening,

R.