GE Healthcare · MR
One Channel Fails to Reach 28 Degrees C.-HFO Magnet
Symptom
One Channel Fails to Reach 28 Degrees C.-HFO Magnet The left post TCU (one channel of 6) read 25.7 degrees C. The setpoint for all channels is 28 degrees C.
Error message
SUB 1 Indicator on the TCU is Lit.
Applies to
- Product
- Magnet HFO. Software Version Concept should NOT be selected for Magnet Products Serial # (Txxx) Field strength: 0.7 T He Vessel Pressure >0.9 psig but <6.25 psig Shield Temp for Cryo-cooler coldhead < 40 K Temp for Shield-cooler Coldhead < 35 K Cryocooler 2nd stage Temp > 3.8K but < 4.5K Recondenser Temp > 4.2K but < 4.6K Delta Temp (Coldhead - Recondensor) < 0 but < 0.3K Min. LHe Fill Level 75% of total vessel Min. LHe Ramp Level 100% Helium Volume 340 Liters Burst Disk 2253802-2 Baffle Assy 2226764
- Area
- MR
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