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Hello,</div>
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Following up on the email sent in October 2018 on load cell trends for the Hall B Solenoid, attached are plots showing the Solenoid's load cell readings since January 1, 2019.</div>
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As in October 2018, the plots are colored to indicate the power status of the Torus and Solenoid:</div>
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Blue: Solenoid ON, Torus ON</div>
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Green: Solenoid OFF, Torus OFF</div>
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Pink: Solenoid ON, Torus OFF</div>
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Red: Solenoid OFF, Torus ON</div>
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All LC plots have areas from about April 24 - April 25, 2019 where the readings went to 555 lbsf that can be disregarded. This period was when the LV cRIO froze and stopped communicating with the PLC.<br>
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In general, the LCs are stable. As expected, the biggest changes are seen when both magnets are ramped. This was also seen back in October 2018.<br>
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When the magnets were both tested in negative polarity on April 18, 2019, there does not appear to be any difference in LC readings.<br>
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There are two LCs (RS86103DS_BR_T and Z86108US_BL_B) that have read zero lbsf since my last email in October 2018. Have these LCs been verified to be working correctly?</div>
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Best regards,</div>
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Tyler<br>
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