Important Patient and Safety Information Introduction
PageWriter TC 70 Cardiograph Service Manual 1-11
Connect other equipment in accordance with IEC 60601-1-1 Medical Electrical Systems
Standard or IEC 60601-1: 2005 (3rd Edition) Medical Electrical Equipment Standard
Clause 16 Medical Electrical Systems.
When connecting the cardiograph to other AC powered equipment, only connect equipment
approved to IEC 60601-1 Medical Electrical Equipment or IEC 60950-1 Information
Technology Equipment.
Only use patient electrodes that are approved by Philips Medical Systems. The use of non-
approved patient electrodes may degrade cardiograph performance.
To prevent burns to the patient, remove all ECG electrodes and lead wires prior to the use of
high frequency surgical equipment (including electrosurgical equipment and some
respiration transducers).
The use of equipment that applies high frequency voltages to the patient (including
electrosurgical equipment and some respiration transducers) is not supported and may
produce undesired results.
AC Power Adapter and AC Power Cord
CAUTION The power supply could feel warm to the touch.
The PageWriter TC70 cardiograph external power supply, part number 453564094411 is
designed with a three wire supply system. The ground only serves a functional purpose for
EMC and not protective earth for electrical safety. Use of an appropriate three-wire power
cord is necessary to provide proper EMC operation.
Only use the AC power adapter designed to be used with the PageWriter TC70 cardiograph,
part number 453564094411, in order to ensure continued compliance with the requirements
of IEC 60601-1.
Only use the external power supply with part number 453564094411 with the PageWriter
TC70 cardiograph to prevent electrical safety hazards. The use of any other power supply is
not approved by Philips Medical Systems.
To disconnect the cardiograph from AC power, unplug the cardiograph AC power cord
from the mains power supply.
This equipment complies with the earth leakage current limits as specified in UL 60601-
1:2003 Medical Electrical Equipment - General Requirements for Safety, only when
connected to a 120 Volt mains power supply.
Use only grounded power cords (three-wire power cords with grounded plugs) and
grounded electrical outlets. Never adapt a grounded plug to fit an ungrounded outlet by
removing the ground prong or ground clip.
Periodically inspect the patient data cable, lead wires, and AC power cord for any worn or
cracked insulation. Ensure that no exposed wires are visible on the AC power cord.
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