Rear Panel Connections
Depending upon the options included with your MR400 or the use model, some connections may
be required after moving the MR400 into the MR magnet room. In addition to the connection for
AC mains power, connections for the waste gas port and the gating cable are available on the
rear panel of the MR400. (For information about the placement of the MR400 in the MR magnet
room, see page 3‐2.)
When making connections to the rear panel of the MR400, ensure that the final installation
complies with IEC 60601-1, clause 16, Medical Electrical (ME) Systems, to assure operator and
patient safety. Always check the summation of leakage currents when the MR400 is connected to
additional external equipment.
Where the integrity of the external protective conductor in the installation or its arrangement is
in doubt, the MR400 shall be operated from batteries.
Expression MR400 Instructions for Use Important Information 1‐19
Gating connector for gating control connections to the MR
system. (Gating cables are type-dependent; see page 1-35.)
Waste gas port (if equipped) for connection of exhausted sam-
pled respiratory gases from the MR400 to your facility's gas scaveng-
ing system; suggested tubing requirement: 3.175 mm (0.125 inch)
outer diameter, 1.6 mm (0.063 inch) inner diameter.
Ground lug (equipotential ground [earth] connection point)
allows for electrical safety testing; and,
allows authorized service personnel to connect a ground
strap for prevention of ESD during servicing.