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| 40m Log |
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 Mon Apr 15 16:10:52 2013, Den, Update, PEM, seismometer isolation kit
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 Thu Apr 18 15:08:14 2013, Steve, Update, PEM, seismometer isolation kit in place 
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Tue Apr 23 16:17:45 2013, Den, Update, PEM, seismometer isolation kit in place
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Message ID: 8477
Entry time: Tue Apr 23 16:17:45 2013
In reply to: 8461
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| Author: |
Den |
| Type: |
Update |
| Category: |
PEM |
| Subject: |
seismometer isolation kit in place |
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| Quote: |
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The carpenter shop finished the installation of the 3 granite bases.Rapid Set Cement All high strength non-shrink grout was used.
Compressive strength 3000 PSI at 1 hour and 9000 PSI at day 28 The janitor is still cleaning up after them at the south end.
The soft silicon gas kits are working well with the SS can. Den is making the adaptor plate drawing for the feedthrough.
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To put everything in one place I add a final drawing of the base to this elog.
Next time we continue with wiring and putting temperature and pressure sensors inside the box. Connector support plate drawing is attached. We'll have sensors inside the kit with STS-2 or Trillium as their connector is small enough (19 pin vs 26 pin for Guralps) that we can put an additional 4 pin lemo connecor (2 pins for each sensor). I think EGG.0B.304.CLL is good for this application. Temperature and pressure sensor we can by from omega. |
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