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HMS magnets have recovered and are full</div>
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SHMS transfer line is being pumped on. SHMS magnets are isolated both LN2 and LHe and are on warm return.</div>
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SHMS transfer line internal temps:</div>
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LHe supply 132K</div>
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LHe return 165K</div>
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LN2 supply 202K</div>
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Steven<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Esr-users <esr-users-bounces@jlab.org> on behalf of Steven Lassiter via Esr-users <esr-users@jlab.org><br>
<b>Sent:</b> Wednesday, August 30, 2023 8:53 AM<br>
<b>To:</b> Cryo <esr-users@jlab.org><br>
<b>Subject:</b> [Esr-users] SHMS loss of vacuum</font>
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The SHMS transfer line experienced a loss of vacuum yesterday when a pump was removed and the vacuum actuator did not close properly.</div>
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The insulating vacuum spoiled and the excessive heat load resulted in the all magnet, HMS and SHMS, losing He and LN2 inventory. Magnets are warming up.</div>
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Working to recover the HMS while taking the SHMS off line. <br>
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Work in progress.</div>
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Steven<br>
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