• Object ID: 00000018WIA30900870GYZ
  • Topic ID: id_40023747 Version: 1.7
  • Date: Mar 22, 2022 4:21:41 PM

Check cryogen levels on a system with a helium level meter

About this task

IEC 60601-2-33: 201.7.9.2.101 ff

It is very important to check and record the helium level. Sufficient helium is necessary to avoid accidental quench. Frequent checks of cryogen levels must be carried out by the responsible organization. The responsible organization is the entity accountable for the use and maintenance of your MR system. It can be, for example, a hospital, an individual clinician or a layperson. If the helium levels fall below 60%, or the level your service engineer says is acceptable, contact a service engineer immediately.

Use this procedure to check cryogen levels.

Step-by-step instructions

  1. Turn on the Helium Meter power switch.
    • This switch is located at the system cabinet.
  2. Press Update on the system cabinet.
    • An updated reading of the helium level posts.
  3. Record the percent of helium reading.
    • Keep a logbook to record readings daily.
    • It is crucial that cryogenic systems be checked regularly to be sure they are properly functioning.
  4. Turn off the Helium Meter power switch when complete.