Specifications Technical Specifications
A-2 PageWriter TC 70 Cardiograph Service Manual
Technical Specifications
ECG Acquisition
Auto ECG (12 leads standard; up to 16 leads optional)
Rhythm ECG (12 leads standard; up to 16 leads optional)
Disclose (1 to 12 leads standard; 1 to 16 leads optional)
Keyboard
Full alphanumeric capability QWERTY keyboard
Touchscreen Display
1024 x 768 graphics resolution with 18-bit pixel color depth
30.4 cm x 22.8 cm (11.96 x 8.97 in) color liquid crystal touch screen display with backlight
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.
Patient Interface Module
Remote, microprocessor-controlled module
ECG button with signal quality indicator allows user to take ECGs from the bedside
Patient Interface Module Signal Acquisition
8,000 samples per second per electrode/lead for standard 12 or up to 16 leads
Signal Processing/Acquisition
Sampling Rate
500 samples per second per electrode/lead
12 bit A/D conversion provides down sampled 5µV resolution, 500 samples per second
measurement with no channel to channel skew
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