Unable to scan with SAR error code 2257273.
Symptom
Unable to scan with SAR error code 2257273. The predicted SAR downloaded was above the temperature de-rated SAR limit. See Long Description The system will not scan certain protocols with the error messages shown below logged. Thu Oct 8 11:48:37 2009 Error: 2257273 Host: mr34 Process: NSP File: SCP:CanUpmHWO Line: 2625 Exception Class: Unknown Severity: Unknown Function: RF: RF Power Monitor PSD: FSE-XL Coil: 8HRBRAIN Scan: 1240/2 The predicted SAR downloaded was above the temperature de-rated SAR limit. Please lower the scan room ambient temperature Predicted SAR = 2.1 SAR Limit = 2.0 Scan Room Temp = XX.XX degrees C-> Extended Error: The SAR limits are adjusted based on the temperature read by the scan room temperature sensor. For each degree above 23.5 degrees C, the SAR limit is reduced by 0.25. If the predicted SAR of a given scan is expected to exceed the SAR limit imposed by the scan room ambient temperature, the scan will be inhibited. The most likely cause of this error is the scan room air conditioning not being set to a low enough temperature. This could also be caused by a faulty scan room air temperature sensor. Thu Oct 8 11:48:37 2009 Error: 2224666 Host: mr34 Process: psc File: ../PscMainControl.cc Line: 1400 Exception Class: Unknown Function: Prescan: Host Autoprescan Auto Prescan failed, Predicted SAR above temperature based SAR limit
Error message
2257273 The predicted SAR downloaded was above the temperature de-rated SAR limit. Please lower the scan room ambient temperature. See Long Description Error: 2257273 Host: mr34 Process: NSP File: SCP:CanUpmHWO Line: 2625 Exception Class: Unknown Severity: Unknown Function: RF: RF Power Monitor PSD: FSE-XL Coil: 8HRBRAIN Scan: 1240/2 The predicted SAR downloaded was above the temperature de-rated SAR limit. Please lower the scan room ambient temperature Predicted SAR = 2.1 SAR Limit = 2.0 Scan Room Temp = 19.14 degrees C-> Extended Error: The SAR limits are adjusted based on the temperature read by the scan room temperature sensor. For each degree above 23.5 degrees C, the SAR limit is reduced by 0.25. If the predicted SAR of a given scan is expected to exceed the SAR limit imposed by the scan room ambient temperature, the scan will be inhibited. The most likely cause of this error is the scan room air conditioning not being set to a low enough temperature. This could also be caused by a faulty scan room air temperature sensor.
Applies to
- Models
- Optima
- Product
- Optima MR450W Wide bore magnet. Not Discovery750 or Discovery450.
- Software
- 21.0 Only for Optima MR450W (wide bore) systems. (Not to be used on Discovery MR450 or Discovery MR750). Only for Optima MR450W (wide bore) systems. (Not to be used on Discovery MR450 or Discovery MR750).
- Component
- 5273181 Ambient Temperature Sensor 5273181 sensor plugs into cable assembly 5180907 Bore Temp Sensor.
- Area
- MR
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