46 400/54 Premium Shielded NMR Magnet System Product Overview
3 Maintenance
Figure 12 Remove helium nonreturn valve and fill side bung and baffle
assembly
Figure 13 Insert siphon and adapter assembly
12 Gently push the siphon into the helium can until you feel
it touch a barrier (connector). Then withdraw it about 50
mm (~2 inches).
13 Continually monitor the helium level to ensure that the
fill is progressing well.
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