SOP — System Over Pressure alarm stops the cooler pump on the Oxford 2195 cooler cabinet
Philips CT error code, reported by the Oxford 2195 Cooler Cabinet (MRI gradient/primary water cooling).
What SOP means
On Eclipse 1.5T and Polaris and Apollo CT systems, status code SOP indicates: System Over Pressure alarm stops the cooler pump on the Oxford 2195 cooler cabinet. The code originates in the Water Cooling System (Oxford 2195 Cooler Cabinet) section of the Oxford 2195 Cooler Cabinet (MRI gradient/primary water cooling). Severity level alarm-high (Alarm (high) — pump-stopping fault).
Reported action: Per the document: if the pump stops and a System Over Pressure alarm is raised, to restart the cooler all outstanding alarms must first be acknowledged from the controller keypad by pressing 9 followed by Return, then the pump must be commanded to stop and started again. Investigate the cause of the overpressure condition before returning the cooler to service..
Shown as an alarm-status abbreviation on the Picker 3020 controller of the Oxford 2195 Cooler Cabinet, documented for the Philips/Picker Eclipse 1.5T MRI (and shared, per the same table, by Polaris and Apollo systems). Not confirmed by this document for other cooler models.
Full troubleshooting for SOP
The complete diagnosis, cause tree, and step-by-step remedy for the Water Cooling System (Oxford 2195 Cooler Cabinet) subsystem are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with real figures.
Open the Activion16 service manualRelated Water Cooling System (Oxford 2195 Cooler Cabinet) codes
Source: Philips/Picker Eclipse 1.5T MRI service documentation — Theory and Troubleshooting of Oxford 2195 Cooler Cabinet (Diagnostic Tools and Information, Maintenance). Reference information re-authored by FSELIB — not a copy of the OEM manual.