Boris Gramatikov
The mid-size clinical ECG machines 1232/1233 The ECG 1232/1233 are fully computerized electrocardiographs using a penless microdot recorder of 110 mm paper width. These electrocardiographs were developed by a team led by Professor I. Dotsinky, PhD, Dr.Sc. Hardware and software modules were developed by Dr. I. Christov, Dr. A. Iltcheva, and Dr. B. Gramatikov. The system features synchronous acquisition of 12 leads/3 seconds, automatic artefact/noise detection, computed Frank X, Y and Z leads and vector loops, efficient suppression of 50 Hz interference while preserving entirely signal shape (patented), 30 Hz tremor filter, automatic wave measurement and interpretation, flat membrane keypad, serial interface and PC communication protocol, and easy operation.

Specifications
 
Parameter    Value
Sensitivity   1 or 2 cm/mV
Bandwidth   0.05 Hz - 100 Hz
Time constant   3.2 s
A-D conversion   400 Hz, 10 bit
Recorder    silent thermal microdot printer/plotter, 8 dots/mm vertical and horizontal resolution
Paper   Thermosensitive, non-waxed, 110 mm wide
Effective paper speed   12.5, 25 and 50 mm/s
Dimensions   500(W) x 320 (D) x 140 (H) mm
Weight   10.5 kg

ECG 1232

ECG 1232 in the clinic

ECG 1232 - keyboard functions

The improved version - ECG 1233