GE Healthcare · MRExciteSigna2254782

PM EPIWP is reusing the TG value found during the previous run of LVshim.

Symptom

PM Head EPIWP prematurely ends and Power Monitor Peak Power Exceeded Faults are visible in Error Log Effectivity: All Signa 1.5T and 3T EXCITE HD (12.0) MR Systems. Problem Description: After running LVshim the Head PM EPIWP (EPI White Pixel) test will complete quickly and not generate data. Body EPIWP will complete normally and generate data. A review of the error log will show that a Head Power Monitor Peak Power Exceeded Fault ocurred and caused the Head portion of the test to end prematurely. (SMILe Nov. 10, 2005)

Error message

2254782 The Universal Power Monitor 2 has detected Peak Power Exceeded on the Narrow Band Head Amplifier. 2254782 1 df15hdmr NSP SCP:UPM 657 Exception Class: Unknown Severity: Unknown Function: RF: RF Power Monitor PSD: Spin Echo Coil: HEAD Scan: 7975/1 The Universal Power Monitor 2 has detected Peak Power Exceeded on the Narrow Ban d Head Amplifier. Check patient weight entry. Peak value detected = 657 W. Max Peak Limit = 626 W-

2254782 The Universal Power Monitor 1 has detected Peak Power Exceeded on the Narrow Band Head Amplifier. 2254782 NSP SCP:UPM 657 The Universal Power Monitor 2 has detected Peak Power Exceeded on the Narrow Band Head Amplifier. Peak value detected = 429 W. Max Peak Limit = 426 W- Possible cause(s): ASC RF Detector, ASC RF Processor, RF Amp, Software .

Applies to

Models
Excite, Signa
Product
Excite HD For 12.0 1.5T Systems only.
Software
12.0 Excite HD and 3T Excite HD products only
Area
MR

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