Preventative Maintenance:

Only OEC Service personnel (GE Medical Systems personnel in Ontario) or personnel trained on service of the OEC 9800 should perform periodic or corrective maintenance on this unit.

A Periodic Maintenance Program would consist of checking;

1. All mechanical movements and brakes,
2. Electromechanical performance,
3. Safety Interlocks (e.g. the Fast Stop switch),
4. Electrical parameters, such as;
   • Cables,
   • Connectors,
   • Grounding continuity,
   • Line voltage regulation,
   • Power supply performance,
   • Battery and static-discharge performance,
5. Ventilation (circuits and fans),
6. Imaging chain performance, including
   • High and low contrast resolution,
   • Collimation and beam centering,
   • Auto-Technique tracking,
   • Dose Rate Calibration
7. Testing compliance with Radiation Protection regulations, including;
   • kV accuracy (fluoro and radiographic (FILM) mode),
   • mAs Linearity (FILM mode),
   • Reproducibility,
   • Digital spot automated exposure parameters,
   • Half-Value Layer,
   • Patient Entrance Exposure (FILM and digital spot),
   • Digital Spot Back-up time,
   • Fluoroscopic Parameters, including;
     • Average and Maximum Skin Entrance exposure rates,
     • High and low contrast resolution,
     • Fluoro Timer,
     • Collimation,
     • Presence of separator cone (under Ontario regulations),
     • Other tests as required by the facility Radiation Protection Officer and prevailing regulations,