74 400/54 Premium Shielded NMR Magnet System Product Overview
5 Agilent E5025 Cryogen Monitor
If the unit is inadvertently left in Helium Fill mode, it
automatically reverts to the normal helium probe readings
after 90 minutes.
It is not necessary to turn on helium fill mode when
performing a nitrogen top- up, since the nitrogen display is
updated with a new nitrogen level measurement
approximately every 5 seconds during normal operation.
Checking both Helium probe readings
If both helium probes are ON then the option “HELiU ?” is
available by pressing
twice to scroll down the menu.
Selecting this option makes the unit display the most recent
helium level measurement for each probe consecutively, P1
first followed by P2. The display then reverts to the default
display of P1 (unless set otherwise from the Set- up menu).
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