Installing and Connecting Cart Batteries
Cart batteries contain ferrous materials that are attracted to the MR magnetic field. Do not
install or remove the cart batteries when closer than the 1,000 gauss (0.1 T) field line, as
measured from the center line of the MR bore to the MR400. The batteries will be attracted
to the magnetic field, possibly causing patient or user injury.
Never force a main battery into a battery compartment as it will damage the battery and/or the cart.
Four batteries are used in the MR400:
To install and connect the main and reserve batteries
1‐16 Important Information Expression MR400 Instructions for Use
Verify that the status indicator on the wECG and wSpO2 modules is
illuminated steady green:
Verify that the wireless network channels on the wECG and wSpO2
modules are set to the channel used by the MR400; see page 1‐29.
Place the wECG and wSpO2 modules into the module holders on
the MR400; see page 2‐12.
This completes the initial setup process. For information regarding
other possible MR400 connections; see Rear Panel Connections on
Two main batteries must be inserted—one into the left battery compartment and one into
the right battery compartment of the cart; and,
Two reserve batteries, internally‐housed in the cart, must be switched on.
Locate the battery compartments, which are underneath the WPU
on the left and right sides of the cart.
For the wECG module, see page 2‐9.
For the wSpO2 module, see page 2‐11.