GE Revolution CT User Manual page 67

The design of the CT scanner uses an equal potential grounding system. All components within
the system are provided power on a common ground, so all the components are suitable for use
in the patient environment. Three primary grounding points exist, they include:
•
A system power ground point located in the NGPDU.
• A reference ground point located between the gantry and the table base.
•
A protective earth ground points located at the rear of the gantry for accessory use.
ALL patient-accessible metal surfaces are grounded to the same potential as the A1
Disconnect.
Power Indicator Light Locations
Component
Gantry
Power Distribution
Unit
Scanner Desktop
Scan Control Inter‐
face
System Cabinet (Im‐
age Generation)
System On light
Chapter 3 Safety
Indicator Light Location
Indicator Locations: Gantry control buttons backlight, Gantry indicator/regulatory display and service panel
120VAC LED.
System ON: gantry control panel backlighting, service panel 120VAC LED will be lit and Indicator display/
regulatory will display table vertical position.
Shutdown: On the Indicator display the crescent moon will be statically lit (no flashing).
Indicator Location: PDU light at the front.
System ON: The light indicator will be ON.
Shutdown: The light indicator will be ON.
Indicator Locations: Monitors Power ON/OFF buttons lights, Scanner Desktop/NIO Cabinet power on/off
light located at the front.
System ON: The light indicators will be ON.
Shutdown: The light indicators will be ON.
Indicator: Standby Button Light.
System ON: The button light will be ON.
Shutdown: The button light will be flashing.
Indicators: System Cabinet provides a green light to the service personal to indicate is energized. SDA
computer and disks and Image Generation computer front panel Power ON/OFF lights.
System ON: The light indicators will be ON.
Shutdown: The light indicators will be ON.
Indicator: Optional light, customer provided, it indicates that the PDU is energized (A1 breaker is ON).
System ON: System On light On.
Shutdown: System On light On.
Revolution CT User Manual
Direction 5480385-1EN, Revision 1
67