70-01047-01 B
System setup
17
System setup
External connections
Equipotential ground
The Burdick 8300 electrocardiograph and Burdick 8500
electrocardiograph are considered CLASS II (ungrounded)
equipment.
The exposed metal on the ECG device is not likely to become
energized because all the exposed metal is double insulated from
the internal live circuitry (i.e., will not become energized under
single fault conditions). As a result, it is safer not to connect the
exposed metal to the internal chassis or the functional earth of
the ECG device.
This method of protection is recognized by all national and
international consensus standards and safety agencies. Since the
exposed metal in the ECG device cannot become energized by
any fault of the internal live circuitry and cannot become
energized as a result of differences in the ground potential
(because the exposed metal is not connected to ground via any
Protective Earth conductor), then there is no reason to provide
voltage equalization.
Therefore, the equipotential ground contact is not connected to
the exposed metal.
Input power
!
WARNING! Patient shock.
The ECG device must be used with a medical grade power cord
connected to medical grade AC outlet only. Use only Cardiac
Science-approved power cables and power brick cables.
Содержание Burdick 8300
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