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GE Healthcare · MR

High Vessel Pressure Due to Cold Head efficiency. hfo_orgi2 alarm I2 HePressure Limit.

Symptom

hfo_orgi2 alarm I2 HePressure Limit. hfo_orgi2 alarm I2 HePressure Limit, the Helium vessel Pressure has exceeded the high alarm limit setting on the Magnet Monitor 3.

Error message

hfo_orgi2 alarm I2 HePressure Limit. hfo_orgi2 alarm I2 HePressure Limit, the Helium vessel Pressure has exceeded the high alarm limit setting on the Magnet Monitor 3.

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
Component
SecondOpinion Part Number 2188440-2 Sumitomo CSW Series 4K and 10K Compressor. The Sumitomo 4K and 10K Compressor is the same Unit. Sumitomo compressor 2188440-2 is the same for both 10K and 4K Sumitomo cryo-cooler systems. See Long Description for FEMC Comments and Resolution concept for Second Opinion requirements before ordering this part. See comments in Resolution concept for Second Opinion requirements before ordering this part. FEMC Comments: FLS - COMPRESSOR USED ON SHI 10K SYSTEM REPLACES 2188440 PER PCN 188657. COMPLETELY INTERCHANGEABLE AND BOTH CAN BE COMBINED IN THE SAME POOL PER G. BUTLER 2-14-00, A. MASCH FOR GREEN SOURCE DIRECTLY FROMSUMITOMO JAPAN +++ For hour meter issues please order - 2191112-8. +++ *** 2ND OPINION NOTES *** This part has been identified as one requiring second opinion approval before ordering due to one or more of the following reasons: High cost. For approval: Americas - Contact: OnLine Center or your ZSE Europe - OnLine Center or your ZSE Asia - Contact the OnLine Center or your Technical Support. 212002950 April 28, 2008. 2172241 Adsorber for Sumitomo Compressor models CSW 71D and CSA 71D. 2172241 Adsorber for Sumitomo Compressor models CSW 71D and CSA 71D. The basic maintenance work is to replace the oil mist Adsorber of the Compressor Unit for every 20,000 Hrs of operation. 2172241 Adsorber for Sumitomo Compressor models CSW 71D and CSA 71D. The basic maintenance work is to replace the oil mist Adsorber of the Compressor Unit for every 20,000 Hrs of operation SecondOpinion Part Number 2194003-2 Sumitomo Cold Head and Gasket Kit. See comments in resolution concept for second opinion requirements before ordering this part. See comments in resolution concept for second opinion requirements before ordering this part.
Area
MR

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