GE Healthcare · MR
SHEM ALARM Water Flow and Water Temperature values are incorrect.
Symptom
SHEM ALARM Water Flow and Water Temperature values are incorrect SHEM ALARM shows compressor off, no 24V dc, water flow is 5 gpm, and water temp is 0 degrees but the compressor is running, vessel pressure and shield temps are in spec.
Error message
LCC ALARM WATER FLOW LOW. LCC ALARM WATER FLOW LOW, Water Flow is lower than the Lower Alarm Limit setting on the SHeM.
Applies to
- Product
- Magnet LCC. Software Version Concept should NOT be selected for Magnet Products Serial #: 1.5T (Rxxx) / 1.0T (Qxxx) He Vessel Pressure:>3 psig but <5 psig Shield Temp:< 55 K Coldhead Temp:> 3.8K but < 4.5K Recondenser Temp:> 4.2K but < 4.55K Delta Temp (Coldhead - Recondensor):> 0 but < 0.3K Min. LHe Fill Level: 50% Min. LHe Ramp Level: 90% Min. LHe Shim Level: 75% Helium Volume:1940 L (1.5T) Helium Volume:1970 L (1.0T) Burst Disk <":2319285 Burst Disk >":2350415 Burst Disk O-ring:46-281101P1 Baffle Assy 2180818 Low Cryogen Consumption
- Component
- 2333825 Water Flow Sensor Assembly. The part number for the new water flow (turbine) / temperature meter for Magnet Monitor is 2333825. The part number for the new water flow (turbine) / temperature meter for Magnet Monitor is 2333825.
- Area
- MR
Full cause & step-by-step resolution
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