6
Installation Guide
3.3 Rear Connections
Figure 3
3.3.1 Equipotential Earth Connection
An Equipotential earth point is provided on the rear of the monitor for connection to a
recommended earth point on the CT scanner.
The earth wire should be run separately from any mains or current carrying cables and
should be kept as short as possible.
Connection is achieved using a 4mm banana plug or 5mm hook terminal terminated
onto 4mm
2
56/28AWG yellow and green earth wire, connected to the Equipotential
Earth Point on the rear panel of the monitor.
At no point should a patient be connected directly to Earth.
All external earth connections should be visually inspected to ensure that all cables
and connections are of good condition.
Earth bonding checks should be carried out with a suitable portable appliance tester.
The Impedance between the protective earth and Equipotential earth on the CT
scanner shall not exceed 0.1Ω
Equipotential Earth
Point
Trigger Output
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