To protect the patient and hospital personnel, the electrocardiograph system must be grounded.
The device is equipped with a detachable 3-wire cable which grounds the instrument to the power
line ground (protective earth) when plugged into an appropriate 3-wire receptacle. If a 3-wire
receptacle is not available, consult the hospital electricians. If there is any doubt regarding the
integrity of the protective grounding wire, the equipment should run on the battery.
Warning
Possible explosion hazard if the device is used in the presence of flammable anesthetic
agents.
Grounding
VIII