Important Patient and Safety Information Introduction
PageWriter TC 70 Cardiograph Service Manual 1-13
Display Accuracy
The accuracy of the ECG signals are within +/- 5% (or +/- 40 uV whichever is greater), over
a range of 0 to 5 mV, in the presence of differential and common mode DC offset voltages
of +/- 300 mV. The cardiograph performance is tested to comply with the accuracy
requirements over the dynamic ranges and frequency ranges specified in the IEC 60601-2-
51 and AAMI EC-11 standards.
For additional details regarding accuracy and precision, refer to the Physician's Guide and
the Manufacturer's Disclosure Statement.
ECG Interpretation
CAUTION Always enter accurate patient information (including age and gender) if using the Philips ECG
Algorithm for ECG interpretation.
Electrodes
Philips recommends the use of disposable electrodes at all times for all patient applications.
Choose either adult or pediatric disposable electrodes based on the age and size of the
patient. See “Disposable and Reusable Electrodes” on page 5-8 for information on ordering
disposable electrodes.
Faxed ECGs
CAUTION No guarentee is made as to the suitability of a faxed ECG for any particular purpose, due to the
variability inherent in fax technology.
General Cardiograph Use
Do not use this cardiograph near flammable anesthetics. It is not intended for use in
explosive environments or in operating rooms. The disconnection or connection of AC
power, or electrostatic discharge (ESD) may result in an electrical spark.
The cardiograph may generate electromagnetic interference (EMI) that may cause nearby
equipment to fail.
Connecting multiple cardiographs to the same patient may pose a safety hazard due to the
summation of leakage currents. Any combination of instruments should be evaluated by
local safety personnel before being put into service.
IEC 60601-2-51
For information on the standard IEC 60601-2-51, please go to the Philips InCenter web site
(
incenter.medical.philips.com).
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